Operating Instructions Operating Instructions

8. Dive Tools ��40 Table of Contents 8.1. Compass �� 40 8.2. Tag Log ��42 Table of Contents �� 2 8.3. Reset Average Depth ��42 Conventions Used in this Manual �� 4 8.4. Test Alerts ��42 1. Introduction ��5 8.5. Deco Planner ��43 8.6. NDL Planner ��45 1.1. Notes on this manual �� 6 8.7. Air Integration (AI) ��46 1.2. Modes Covered by this Manual �� 6 8.8. What is AI? ��46 2. Basic Operation ��7 8.9. Basic AI Setup ��47 2.1. Turning On ��7 8.10. AI Displays ��50 2.2. Buttons �� 8 8.11. Sidemount AI �� 52 2.3. Changing between Modes �� 9 8.12. Using Multiple Transmitters ��53 2.4. Owner Information Screen �� 9 8.13. SAC calculations ��54 2.5. Function Button �� 9 8.14. GTR calculations ��55 3. Dive Mode Interface ��10 9. Watch Mode �� 56 3.1. Default Dive Setup ��10 9.1. Date And Time ��56 3.2. Dive Mode Differentiation ��10 9.2. Watch Tools ��56 3.3. Main Screen Layout ��11 9.3. Watch Face Colors ��58 3.4. Detailed Descriptions �� 12 10. Menus �� 59 3.5. Info Screens ��16 10.1. Main Menu ��59 3.6. Info Screen Descriptions �� 17 3.7. Home Screen Customization �� 22 11. Settings Reference �� 66 3.8. Alerts ��23 11.1. Dive Settings Menu ��66 4. Safety and Decompression Stops �� 25 11.2. Deco Menu ��71 11.3. Gases �� 72 4.1. Safety Stops ��25 11.4. Set Points �� 73 4.2. Decompression Stops ��26 11.5. AI �� 74 5. Decompression and Gradient Factors �� 27 11.6. Compass ��76 5.1. Decompression Information Accuracy ��28 11.7. Display �� 77 11.8. Watch ��79 6. Example Dives �� 29 11.9. General ��80 6.1. OC Rec Example Dive ��29 6.2. OC Tec Example Dive ��30 12. Firmware Update and Log Download �� 81 6.3. CC Example Dive ��32 12.1. Shearwater Cloud Desktop ��81 6.4. Gauge Mode ��35 12.2. Shearwater Cloud Mobile ��83 7. Freedive Mode �� 36 13. Teric Strap �� 84 7.1. Default Freediving Layout ��36 14. Charging �� 84 7.2. Freediving Info Screens �� 37 7.3. Freediving Sets �� 37 15. Troubleshooting �� 86

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15.1. Warnings and Information Displays ��86 15.2. AI Connection problems ��87 16. Storage and Maintenance �� 88 16.1. AMOLED Burn In ��88 17. Servicing �� 88 18. Glossary �� 88 19. Teric Specifications �� 89 20. Regulatory Information ��90

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Conventions Used in this Manual

These conventions are used to highlight important DANGER information: This computer is capable of calculating deco stop requirements. These INFORMATION calculations are at best a guess of real physiological decompression requirements. Dives requiring staged decompression are substantially Information boxes contain useful tips for getting the most out of your Teric� more risky than dives that stay well within no-stop limits.

Diving with rebreathers and/or diving mixed gases and/or performing CAUTION staged decompression dives and/or diving in overhead environments greatly increases the risk associated with scuba diving. Caution boxes contain important instructions on operating the Teric� YOU REALLY ARE RISKING YOUR LIFE WITH THIS ACTIVITY. WARNING

Warning boxes contain critical information that may affect your WARNING personal safety� This computer has bugs. Although we haven’t found them all yet, they are there. It is certain that there are things that this computer does that either we didn’t think about, or planned for it to do something different. Never risk your life on only one source of information. Use a second computer or tables. If you choose to make riskier dives, obtain the proper training and work up to them slowly to gain experience.

This computer will fail. It is not whether it will fail but when it will fail. Do not depend on it. Always have a plan for how to handle failures. Automatic systems are no substitute for knowledge and training.

No technology will keep you alive. Knowledge, skill, and practiced procedures are your best defense (except for not doing the dive, of course).

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Features

• Vivid full color 1�39” AMOLED display • Rugged stainless steel bezel and sapphire crystal • Crush proof to 200m / 650ft • 5 independently configurable diving modes • 2 customizable layouts for every dive mode • 5 customizable gases in every SCUBA mode • Any combination of Oxygen, Nitrogen and Helium (Air, Nitrox,Trimix) • Full decompression and CCR Support • Bühlmann ZHL-16C with gradient factors • No lockout for violating deco stops • CNS Tracking • Quick NDL and full decompression planner built in • Simultaneous wireless pressure monitoring of up to 4 cylinders • Sidemount support • Gas density tracking • Tilt compensated digital compass with multiple display options • Dedicated Freedive Mode • Customizable auditory and vibration alerts • High-speed depth sampling • 3 watch faces available in 15 colors • Bluetooth Dive log uploading to Shearwater Cloud 1. Introduction • Free firmware updates The Shearwater Teric is an advanced dive computer for all types of diving�

Please take the time to read this manual� Your safety Watch the video: may depend on your ability to read and understand the Teric Introduction Teric displays�

Diving involves risk and education is your best tool for managing this risk�

Do not use this manual as a substitute for proper dive training and never dive beyond your training� What you don’t know can hurt you�

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1.1. Notes on this manual 1.2. Modes Covered by this Manual

This manual contains cross-references between This manual provides operating instructions for the Teric in Watch sections to make it easier to navigate. Mode as well as five Dive Modes:

Underlined text indicates the presence of a link to • Open Circuit Recreational (OC Rec) OC Rec another section. • Open Circuit Technical (OC Tec) OC Tec • Closed Circuit / Bail Out (CC/BO) OCBOCC Do not change any settings on your Teric without • Gauge OCBOGACCFD understanding the consequence of the change. If • Freedive OCBOCCFD you are unsure, consult the appropriate section of the manual for reference. Some features of the Teric only apply to certain dive modes. Look for the corresponding mode icons throughout the manual to help This manual is not a substitute for proper training. distinguish which features are available in the various modes.

If not otherwise indicated, features described are applicable in all dive modes.

Change the Dive Mode from the Dive Settings menu. See details on page 66. Firmware Version: V19

This manual corresponds to firmware version V19.

Feature changes may have been made since this release and might not be documented here.

Check the release notes on Shearwater.com for a complete list of changes since the last release.

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Auto-on Details 2. Basic Operation The Teric turns on automatically and enters dive mode when the absolute pressure is greater than 1100 millibar (mbar). 2.1. Turning On For reference, normal sea level pressure is 1013 mbar To turn the Teric On, press any button. and 1 mbar of pressure corresponds to approximately 1 cm (0.4”) of water. So, when at sea level, the Teric will automatically turn-on and enter dive mode when about 0.9 m (3 ft) underwater.

If at higher altitude, then the Teric auto-on will occur at a deeper depth. For example, when at 2000 m (6500 ft) altitude the atmospheric pressure is only about 800 mbar. Therefore, at this altitude the Teric must be submerged underwater by 300 mbar to reach an absolute pressure of 1100 mbar. This means the auto-on occurs at about 3 m (10 ft) underwater when at an altitude of 2000 m.

Auto-on The Teric will automatically turn-on and enter dive Do Not Rely On The Auto-On Feature mode when submerged underwater. This is based on pressure increase and not on the presence of water. This feature is supplied as a backup for When auto-on is activated, the Teric will enter the last when you forget to turn on your Teric or configured dive mode. forget to place it in dive mode. Shearwater recommends turning your computer on manually and entering dive mode before each dive to confirm proper operation and to double check battery status and setup.

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2.2. Buttons Button Hints When in a menu, button hints label each button:

All Teric operations are simple single button presses�

UP SELECT

LIGHT FUNC (Upper Left) (Upper Right) Dive Watch Tools

DecoDOWN HOME

MENU INFO (Lower Left) (Lower Right) Deco Model In the example above, the hints tell us: ZHL16C+GF • Use LIGHT to move up a menu item Don’t worry about remembering all the button rules • Use MENU to move down a menu item below� Button hints make using the Teric easy� • Use FUNC to select a menu item GF Conserv.• Use INFO to go back to the home screen MENU Button (Lower Left) From the main screen > Brings up the menu High 35/75 In a menu > Moves down to the next menu item Button Hint Icons: INFO Button (Lower Right) Last Stop UP BACK From the main screen > Cycles through info screens In a menu > Exits back to the previous menu or main DOWN HOME screen 3 m Gases NEXT ✘ CANCEL LIGHT button (Upper Left) PREVIOUS SAVE From the main screen > Cycles brightness levels Gases In a menu > Moves up to the next menu item SELECT FUNCTION Button (Upper Right) From the main screen > Configurable shortcut In a menu > Selects menu item

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2.3. Changing between Modes 2.4. Owner Information Screen

The two primary modes are Watch Mode and Dive Upon entering Dive Mode� Watch Mode is only available at the surface� Mode, the owner information screen Switching to Dive Mode will be displayed for 15 Owner:SCUBA Steve seconds or until any To change from Watch Contact:555-123-4567 button is pressed� Mode to Dive Mode manually, press the Owner and contact Menu button and select Beep: OFF information can be Dive from the main Vib: ON changed in the User Info menu (page 80)� Dive menu� Watch Tools Dive Mode will This display also confirms the current alert notification automatically be settings and tests the alerts� Alert notification settings triggered when a dive can be changed in the top-level Alerts menu (page starts� 69)� 2.5. Function Button Changing dive modes is covered on page 66� The function (upper Switching to Watch Mode right) button is a customizable shortcut To change from Dive that makes accessing Mode to Watch Mode, your most used .0 press the Menu button functions on the Teric a and select Watch from little easier� OCFD DECO 0ftTTS the main menu� 20NDLft W2atchmin 14TTS The function button O2/He T1 By default, the Teric will can be customized -- -- P Select Gas S not automatically revert independently for every 21/00SURFACE1850 I back to Watch Mode� mode of operation� 2h 34m This behaviour can be modified in the display For Watch Mode, the function button can be % 21 Timeouts menu� See customized in Settings > Watch� page 78� For each dive mode, the function button can be customized in Settings > Dive�

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3. Dive Mode Interface 3.2. Dive Mode Differentiation

Each dive mode is designed to best suit a particular 3.1. Default Dive Setup type of diving�

The Teric comes pre-configured for recreational OC Rec diving� Designed for use during recreational, no-decompression diving activities� The default dive mode for the Teric is Open Circuit • Nitrox Only - no helium Recreational (OC Rec) displayed with the “Big” screen • Safety Stops layout� • Enhanced warnings

As a quick reference, a diagram of the default diving OC Tec display is shown below� Designed for use during technical diving activities including planned decompression� • Full Trimix Battery Indicator • No Safety stops Depth .0 • TTS permanently on screen in Big layout Dive Mode OC Rec 18m 6 Ascent Rate CC/BO No Deco NDL TTS Time To Designed for use with a closed circuit rebreather� • Fast switching from closed circuit to open circuit Limit Surface 15 2 (BO) operating modes� Alert Dive Time ! • Separate customizable home screens for CC and Indicator 42:18 BO� Active Gas % Gauge 21 Gauge Mode turns the Teric into a simple depth and OC Rec mode with Big time display (a�k�a� a bottom timer)� See page 35� screen layout • No tissue tracking Many attributes of this default mode are shared with • No decompression information the other dive modes� The following sections go into detail about each screen element� Freedive Optimized for use while freediving� See page 36� See the OC Rec Example Dive on page 29 for a • Freediving sets� walk through of how this screen changes through all phases of a dive� Change the Dive Mode from the Dive Settings menu� See details on page 66� Watch the video: User Interface

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3.3. Main Screen Layout Standard layout

The Teric has two different screen layouts available in every dive mode, Big and Standard� Top Row .6 Depth, Mode Change the Screen layout from the Dive Settings Menu� 38 m 6 & Ascent Rate See details on page 66� DECO TTS Deco Row NDL, TTS Big layout 6m 2min 14 O2/He T1 B Info Row A Customizable Top Row 21/00 127 R .0 Depth, Mode Bottom Row ! :19 24m 6 & Ascent Rate 23 Dive Time NDL TTS Info Row NDL, TTS & Deco Info The Standard screen layout has four rows and gives 12 4 the most information on the screen at the expense of Bottom Row font size� :18 Dive Time The Top, Bottom, and Deco row content are reserved 42 for the most critical information and are fixed, while % pressing the INFO button scrolls through additional 21 data in the Info row� The Big screen layout provides the largest font size at the expense of on screen information� The Info row can be customized with up to three pieces of information� Read mode about Home Screen The top and bottom row contents are reserved for the Customization on page 22� most critical information and are fixed, while pressing the INFO button scrolls through additional data in the In OC Rec mode, the right Deco Row information slot Info row� can also be customized, just like the Info Row�

In some modes, the right Info row slot can be The Standard screen layout is the default layout for customized� Read mode about Home Screen OC Tec and CC/BO� Customization on page 22�

The Big screen layout is the default layout for OC Rec, Freedive, and Gauge mode�

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Freedive Mode Ascent / Descent Rate Display OCBOCCFD 3.4. Detailed Descriptions Freedivers ascend much faster than SCUBA divers� So, ascent rate in Freedive Mode is measured in feet per second (fps) or meters per second (mps) rather than The Top Row feet per minute or meters per minute� The top row shows depth, ascent rate, battery and mode information� In Freedive Mode, 1 arrow per 1 fps / 0�3 mps� 0.9

Descent rate is displayed in addition to ascent rate in Freedive Mode� .1 0.4 OC Tec 26 m 6 Read more about Freedive Mode on page 36� Depth NDL TTS Displayed to one decimal place in feet or meters� Battery Icon The battery icon is shown on the surface but disappears when diving� If low or critical then the .6 .7 battery icon will appear while diving� ft m 125 32 WHITE when battery charge is OK Note: If the depth shows a Flashing Red zero or shows at depth at the surface, then the depth sensor needs service� YELLOW when battery needs to be charged� Ascent Rate Display RED when battery must be Shows how fast you are currently ascending charged immediately� graphically and numerically� Dive Mode Indicator 1 arrow per 3 meters per minute (mpm) or 10 feet per The dive mode indicator is only shown at the surface minute (fpm) of ascent rate� (except CC & BO mode)�

WHITE when less than 9 mpm / 30 fpm OC Rec Open Circuit Recreational (OC REC) 6 (1 to 3 arrows) OC Tec Open Circuit Technical (OC TEC) YELLOW when greater than 9 mpm / 30 fpm and less than 18 mpm / 60 fpm OCBOCC Closed Circuit 12 (4 or 5 arrows)

FLASHING RED when greater than OCBO Bailout (Available in CC/BO mode) 18 mpm / 60 fpm (6 arrows) 20 OCBOCCFD Freedive Mode

Note: Deco calculations assume 10mpm (33fpm) Gauge Mode ascent rate� OCBOGACCFD

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The Deco Row Deco Clear Counter0 125 23 In OC Tec and CC/BO mode, the deco CLEAR clear counter appears in the DECO box NDL TTS and counts up from zero to show for 1:14 how long your decompression has been 21 21 clear� Safety Stop Counter The Deco RowO2/He is only shown in the Standard layout, 0 however, the Deco row information described below SAFETY In OC Rec mode, the safety stop is shown on the first page of the info row in the Big 42counter.0 counts down automatically layout� when in the safety stop range� Displays 3:22 “Clearft when the safety stop has No Decompression Limit (NDL) FD Deep 0completed� SAFETY STOPWATCH NDL The time remaining, in minutes, at the See the Safety Stops section on page current depth until decompression stops 25 for details� 20 will be necessary� CLEAR42 SURFACE NDL Displays in Yellow when the NDL is less 125Time-To-Surface23 (TTS) than 5 minutes� The time-to-surface in minutes� This 5 TTS is the current time to ascend to the surface including the ascent plus all Deco Stop Depth and Time min 1419:16required deco stops and safety stops� Once Mandatory decompression is required, NDL will be replaced by decompression information� T1 125 The time-to-surface slot can be customized in OC Rec mode� See Page 65 for more details� DECO The shallowest depth to which you can ascend and how long to hold 6m 2min that stop� Important! By defaultO2/He the Teric uses a 3m (10ft) last deco stop All decompression information including depth� You may perform your last deco stop deeper Deco Stops, NDL, and Time to surface are if you wish - deco calculations will remain accurate� If predictions that assume: you choose to do this, depending on your breathing gas, the predicted time-to-surface may be shorter • Ascent rate of 10mpm / 33fpm than the actual TTS since off-gassing may occur • Decompression stops will be followed slower than the algorithm expects� There is also an • All programmed gases will be used as option to set the last stop to 6m (20ft)� appropriate

See the Decompression Stops section on page 26 Read more about Decompression and for details� Gradient Factors on page 27�

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The Info Row Active Gas In all three standard layout examples, the first Info row The Info row is the center row in the Big layout slot is taken by the Active Gas� and the third row in the Standard layout� Info row m min information is customizable� See Home Screen 27 1 58 In OC Rec mode, the percentage Customization on page 22 for details� O2 PPO2 of oxygen in the breathing gas is % displayed� In the Big layout, the Info row shows decompression 21 .21 information as described in The.0 Deco Row section on 27m 1min 58 page 13� :22 OC Rec ft O2/He In OCPPO2 Tec mode, both the fraction of 60 22 19oxygen and the fraction of helium are NDL TTS 18/45 displayed�1.23 15 2 27m 1min :2258 Default Info row in OC Rec mode, Big layout O2/He19In CC/BOSP mode, the active gas refers to ! the diluent gas� The default configuration of the Info row in the 10/50 1.3 Standard layout varies between:18 different dive modes� 27m 1min 27m58 1min 58 27m 421min 58 O2 :O2/He22PPO2 ActivePPO2 gas displays in % O2 21 PPO2 %19 yellow when a better gas 21 18/45.21 is available�1.23 21% .21 Default Info row in OC Rec mode, Standard layout :22 :22 Partial Pressure19 of Oxygen19 (PPO2) 27m 1min :2258 m min O2/He19 PPO2 CNS MOD PPO2 PPO2 of the current breathing gas� Displays in Flashing Red when outside 18/45 1.23 11% 271 .21 customizable PPO2 limits� Default Info row in OC Tec mode, Standard layout m SURFACEmin CNS MOD PPO2 Read more about PPO2 Limits on page m min :22 70� 27 1 58 % O2/He19 SP 11 271 \\1.71 10/50 1.3 SURFACE CC Internal Set point (SP) OCBOCC Default Info row in CC/BO mode, Standard layout :22 The high and low internal set points are color coded� 19 27m 1min 58 27m 1min 58 O2/He SP HighO2/He Set point SP Low Set point 10/50 1.3 is10/50 green 0.7 is magenta 19:22 19:22 Page 14 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

The Bottom Row Alternate Active Gas and Set point Location 103.6ft 4:57 When the info row is not displaying the active ! breathing gas (or diluent), or the current internal set 42:18 point, these values are displayed in the bottom row� % The alternate active gas location is at the very bottom 21 of the computer display� Bottom Row, OC Rec Mode on a dive The alternate set point location is at the far right of 1753 0 2045 the bottom row� 0.7 SURFACE Notification Setting Icon 12h 34m 18/45 Indicates what notifications are turned on� Only Bottom Row, CC/BO Mode available at the surface� at the surface Beep Only

Dive Time 21/00 1850 Vibrate Only The current length of the dive in minutes :18 and seconds 42 Beep and Vibrate Surface Interval 1753 0 2045 Silenced SURFACE When0.7 on the surface, the Dive Time is replaced by a surface interval display� h m 12 34 Alert Indicator 18/45 ft Shows the minutes and seconds since the end of your 103.6 4:57 Indicates there is a persistent warning last dive� ! condition� Above one hour, the surface interval is displayed in When the computer: detects18 a dangerous situation, hours and minutes� Above 4 days, the surface interval such as high PPO2, a warning is triggered� The large is displayed in days� 42 primary warning can be dismissed, but for some critical situations21 this alert% icon will persist until the The surface interval resets when condition that caused the warning is resolved� See the decompression tissues are cleared� Alerts section on page 23 for more information�

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3.5. Info Screens .3 m Info screens provide more information than is 59 Return to Main Screen by: available on the main screen� DECO TTS •Pressing MENU button 27m 1min 58 •Stepping past last screen .3 O2/He PPO2 •Waiting 10 Seconds (most screens) .5 59 m 18/45 1.23 34m DECO TTS : NDL TTS 27m 1min 58 22 O2/He PPO2 19 10 4 m min 18/45 1.23 LAST DIVE :26 :22 10 19 30.7m 26:57 21% mSURFACEmin T1 T2 Big layout Info row Standard layout Info B B A A location row location 120 R 98 R mSURFACEmin From the main screen, the INFO (bottom right) button N NE steps through info screens� 24 mSURFACEmin When all info screens have been viewed, pressing MAX AVG INFO again will return to the main screen� 103.6ft 43.3ft mSURFACEmin CNS MOD PPO2 Pressing the MENU (bottom left) button will also % return to the home screen at any time� 11 271 .21 mSURFACEmin GF GF99 SurfGF Info screens also automatically time-out after 10 35/75 % % seconds, returning to the home screen� This prevents 22 136 mSURFACEmin critical NDL, DECO and TTS information from being CEIL @+5 Δ+5 hidden for an extended period� 26 20 +8 mSURFACEmin When using the Standard layout, the AI, compass, and TISSUES Tissues Info screens do not automatically time out� m min Press the INFO button SURFACE Note that although these screens are generally TEMP BATTERY (bottom right), to step representative of the Teric display, info screen content �C % through Info Screens 21 49 varies for each mode� For example, decompression mSURFACEmin related info screens are not available in gauge mode� mBar NOW mBar SURF 2564 1013 mSURFACEmin TIME EOD 2:31 2:43 SURFACE

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3.6. Info Screen Descriptions Compass m min

N NE Last Dive Info m min 24 Marked headingsSURFACE appear in green while reciprocal LAST DIVE headings are shown in red� Green arrows point in the 30.7m 26:57 direction of your mark when off course by 5˚ or more� SURFACE Compass info row will not time out in Standard layout� Maximum depth and dive time from the last dive� Only It is only available when compass feature is turned on� available at the surface� See section 8�1 for more information on compass Air Integration (AI) calibration and use� Only available if AI feature is turned on� The contents of the AI info line will automatically adapt to the Maximum Depth current setup� Some examples include: m min m min MAX TheAVG maximum depth of the current dive� When not diving, displays the T1 maximum depth of the last dive B T1 Only 31.6m 13.3 m A 120 R SURFACE Average Depth m SURFACEmin T1 SAC T1 GTRT1 m min Displays the average depth of the B T1 & GTR/SAC current dive, updated once per A MAX AVG 120 R 1.1 45 second� When not diving, displays m m m SURFACEmin 31.6 13.3 the average depth of the last dive� T1 T2 SURFACE B B T1 & T2 A A Maximum Operating Depth 120 R 98 R m min m min .0 CNS MOD PPO2In OC mode MOD is the maximum SURFACE67 m allowable depth of the current T1 GTR 45 T2 % breathing gas as determined by DECO TTS T1, T2 & 11 57 .21 120 SAC1.1 98 GTR/SAC PPO2 limits� m min SURFACE 39 1SURFACE57 In CC mode, MOD is the maximum depth of the T1 92 T3 196 T1, T2, T3, diluent� T2 111 T4 206 & T4 Displays in Flashing Red when exceeded� More information on AI features, limitations, and :19 Read more about PPO2 Limits on page 70� displays can23 be found in “Air Integration (AI)” on page 46� 18/45

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Partial Pressure of Oxygen in Diluent OCBOCC Gradient Factor m min m min DilPO2 displays the partial pressure The deco conservatism value when CNS MOD DilPO2 of oxygen in the diluent gas PPO2� GF GF99 theSurfGF deco model is set to GF� The low % Displays in Flashing Red when 35/75 22%and136 high gradient% factors control 11 271 .21 outside customizable PPO2 Limits� the conservatism of the Bühlmann SURFACE m SURFACEmin GF algorithm� See “Clearing up the CNS MOD DilPO2 When performing a manual diluent Confusion About Deep Stops” by % flush, you can check this value to Erik Baker for more information� 11 271 1.77 see what the expected PPO2 will be SURFACE at the current depth� GF99 m min CNS Toxicity Percentage The current gradient factor as a GF GF99 SurfGF m min Central Nervous System oxygen percentage (i�e� super-saturation toxicity loading percentage� Turns 35/75 % percent% gradient) CNS MOD PPO2 22 136 Yellow when greater than 90%� SURFACE % Turns Red when greater than 150%� 0% means the leading tissue super-saturation is equal 11 271 .21 to ambient pressure� Displays “On Gas” when tissue m min SURFACEThe CNS percentage is calculated tension is less than the inspired inert gas pressure� CNS MOD continuously,PPO2 even when on the % surface and turned off� When deco 100% means the leading tissue super-saturation is 101 271tissues.21 are reset, the CNS will also equal to the original M-Value limit in the Bühlmann SURFACEbe reset� ZHL-16C model�

The CNS value (short for Central Nervous System GF99 is displayed in Yellow when the current gradient Oxygen Toxicity) is a measure of how long you have factor modified M-Value (GF High) is exceeded� been exposed to elevated partial pressures of oxygen (PPO2) as a percentage of a maximum allowable GF99 is displayed in Red when 100% (un-modified exposure� As PPO2 goes up, the maximum allowable M-Value) is exceeded� exposure time goes down� The table we use is from the NOAA Diving Manual (Fourth Edition)� The computer linearly interpolates between these points SurfGF and extrapolates beyond them when necessary� m min GF GF99 SurfGF The surfacing gradient Above a PPO2 of 1�65 ATA, the CNS rate increases at a factor expected if the diver fixed rate of 1% every 4 seconds� 35/75 22% 136% instantaneously surfaced� During a dive the CNS never decreases� When back SURFACESurfGF colour is based on the current GF (GF99)� If at the surface, a half-life of elimination of 90 minutes the current GF is greater than GF High, SurfGF will be is used� So for example, if at the end of the dive the displayed in Yellow� If the current gradient factor is CNS was 80%, then 90 minutes later it will be 40%� greater than 100%, SurfGF will be displayed in Red. In 90 more minutes it will be 20%, etc� Typically after about 6 half-life times (9 hours), everything is back close to equilibrium (0%)�

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Ceiling Pressure m min m min The current decompression ceiling CEIL @+5 not Δrounded+5 to the next deeper mBar NOW mBar SURF stop increment� (i�e� not a multiple 8 20 of 10ft+8 or 3m) 2564 1013 SURFACE The pressureSURFACE in millibars� Two values are shown, @+5 the surface (surf) pressure and the current (now) m min pressure� “At plus 5” is the TTS if remaining CEIL @+5 Δ+5 at the current depth for 5 more Note that typical pressure at sea level is 1013 millibar, 26 20 +8 minutes� This can be used as a although it may vary with the weather (barometric measure of how fast you are on- pressure)� For example, in a low pressure system SURFACE gassing or off-gassing� surface pressure may be as low as 980 millibar, or as high as 1040 millibar in a high pressure system� Δ+5 m min The predicted change in TTS if you For this reason, the PPO2 displayed on the surface CEIL @+5 Δ+5 were to stay at the current depth may not exactly match the FO2 (fraction of O2), 26 20 +8 for 5 more minutes� although the displayed PPO2 is still correct� SURFACE A positive “Delta plus 5” indicates that you are on- The surface pressure is set based on the lowest gassing the leading tissue while a negative number pressure the Teric sees in the 10 minutes prior to the indicates that you are off-gassing the leading tissue� start of a dive� Therefore, altitude is automatically accounted for and no special altitude setting is required�

Time Temperature m min m min The current temperature in degrees TIME EODIn a 12 or 24 hour format� Time TEMP BATTERYCelsius or degrees Fahrenheit� format can be changed in the watch settings menu� �C Temperature% units can be set in the 2:31 2:43 21 49Display settings menu� SURFACE SURFACE Battery End of Dive Time (EOD) m min m min The Teric’s remaining battery level TIME EOD This is similar to TTS but is TEMP BATTERY expressed as a percentage� expressed as a time of day� 21�C 49% 2:31 2:43 SURFACE The time of day at which you SURFACEDisplays in yellow when battery is low and needs to can expect to surface if you be recharged� Displays in red when battery is critically depart immediately, ascend at low and must be recharged immediately� 10mpm or 33fpm, change gases when prompted, and perform all decompression stops as directed�

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Tissues Bar Graph Sample Tissue Bar Graphs m min TISSUES m min TISSUES SURFACE The tissues bar graph shows the tissue compartment inert gas tissue tensions based on the Bühlmann ZHL- On surface (sat�SURFACE with air) 16C model� Note: Gas is 79% N (21% O , or Air) m min 2 2 The fastest tissue compartment is shown on the top, and the slowest on the bottom� Each bar is the TISSUES combined sum of the nitrogen and helium inert gas tensions� Pressure increases to the right� ImmediatelySURFACE after descent The vertical cyan line shows the inert gas inspired pressure� The yellow line is the ambient pressure� The m min red line is the ZHL-16C M-Value pressure� TISSUES

Tissues that are supersaturated above ambient pressure are shown in yellow, and tissues that are On Gassing SURFACE supersaturated above the M-Value are shown in red� m min Note that the scale for each tissue compartment is TISSUES different� The reason the bars are scaled in this way is so that the tissues tensions can be visualized in terms of risk (i�e� how close they are as a percentage to Bühlmann’s original super- saturation limits)� Also, this Deep Stop SURFACE scale changes with depth, since the M-Value line also m min changes with depth� TISSUES m min TISSUES Last deco StopSURFACE 16 tissue Note: Gas is now 50% O and 50% N2 compartments{ 2 Inspired inert SURFACEIncreasing M-Value gas pressure Pressure Pressure Ambient Pressure

Page 20 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

Gas Density Display m min The Gas Density display is only CNS Density PPO2available as a customizable home screen and is not available in the % g/L 11 1.3 .21info row� m SURFACEmin CNS Density PPO2For closed circuit diving, the gas % density display turns yellow at 5�2 11 5.3 g/L .21grams per liter and red at 6�3 grams m SURFACEmin per liter� No other warnings are CNS Density PPO2generated� 11% 6.4 g/L .21For open circuit diving, the gas SURFACE density display turns yellow at 6�3 grams per liter� No other warnings are generated�

You may be surprised at how shallow these warning colors appear�

Read more about why we chose these levels starting on page 66 here (recommendations on page 73):

Anthony, T.G and Mitchell, S.J. Respiratory physiology of rebreatherdiving. In: Pollock NW, Sellers SH, Godfrey JM, eds. Rebreathers and Scientific Diving. Proceedings of NPS/NOAA/DAN/AAUS June 16-19, 2015 Workshop. Durham, NC; 2016.

Page 21 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

3.7. Home Screen Customization Home Screen Customization Options

In the Standard layout, the Home screen (first page) Option Info Display Option Info Display.0 Info Row is customizable with 1, 2 or 3 items� m 27m 1 min27m 581min 58 m min 67 O2/He O2PPO2 PPO2 DECOT1 TTS Tank B Current Gas A Each Dive Mode’s home screen can be customized % Pressure R m min 18/45 211.23 .21 39120m 1 min 57 independently� CNS MOD PPO2 :22 :22Dual Tank SURFACET1 92 T3 196 PPO2% 19 19 11 271 .21m min Pressure m minT2 111 T4 206 OC TEC SURFACE CNS MOD PPO2 T1 SAC T1 GTRT1 Home Screen B .0 CNS % % SAC A :19 OC Tec 0 ft m 11min 271 .21 m min120 R 1.1 45 SURFACE 23 # Values: 2 DECO TTS CNS MOD PPO2 T1 SAC T1SURFACEGTRT1 18/45 MOD GTR P PSI O2/He PPO2 --m -min -- % S 11 m 57min .21 1753m I min16min 45 O2/He PPO2 21/00 .21 CNS SURFACEDensity PPO2 T1 SURFACESAC T1 RTRT1 P Back Gas Density RTR S PSI 21/00 .21 % g/L I min Reset SURFACE 11 1.3m min .21 1753 16m min17 Deco SURFACEGF GF99 SurfGF SURFACET1 T1 120 T2 12h 34m Tx & GTR Consrv % % GTR 45 m 35/75min 22 136 1753m min 1422 GF GF99 SURFACESurfGF T1 SURFACE OC TEC GF99 Tx & SAC T1 120 T2 Home Screen % % SAC1.1 .0 35/75 22m min136 1753m min 1422 m OC Tec 0 SURFACECEIL @+5 Δ+5 T1 SURFACEGTR 45 T2 # Values: 3 Ceiling . GTR & SAC DECO TTS 0 SAC1.1 OC m Tec min80 m 20 +8 120 m min98 T1 �+5 T2 --m -min -- CEILDECO @+5 SURFACETTSΔ+5 SURFACETIME EOD 120 0 98 T1 �+5 T2 @+5 Time of Day --m -min -- 2:31 2:43 Back 120 0 98 26 20 +8 m min T1 SURFACE�+5 T2 DATE SURFACEEOD Reset SURFACE +5 Date .0 Δ MAY-30 12h 34m 1753m min0 2045 FD Deep 0ft 2:43 18/45 SURFACETISSUES MAX STOPWATCHSURFACE Tissues Stopwatch 12h 34m ft In Open Circuit Rec mode, the right slot of the Info m min 18/45 103.6m min 4:57 Row and the right Deco Row slot in standard mode GF GF99 SurfGFSURFACE TIMESURFACEEOD Surf� GF % % End of Dive are also customizable� 35/7512522 13623 2:31 2:43m min SURFACE TTS t@Max SURFACEt@MAX EOD TTS 19:16 OC REC min 14 Depth 12:14m min 2:43 Home Screen NDLT1 TEMP SURFACEBATTERY .0 NDL Temperature 20 �C % ft 27m 1min 58 21m min 49 OC Rec 0 SURFACE O2/He SP Compass EOD NDL T1 NDL T1 B B Set Point Compass˚ A A 10/50 1.3 -- 120 R -- 120 R m min m min 55� 2:43 CNS MOD DilPO2 TEMP BATTERYSURFACE Back SURFACE Dil� PPO2 :22 Battery % Reset % 2h 34m 11 27119 .21m min 21�C 49m % min SURFACE MAX AVG SURFACEmBar NOW mBar SURF 21% Max Depth mBar Now m min 31.6m 13.3 m m min 2564 1013 Details about how to customize the Home screen can MAX AVG SURFACE mBar NOW mBar SURFSURFACE Avg� Depth mBar Surf� be found on page 67� 31.6m 13.3 m 2564 1013 SURFACE SURFACE Page 22 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

3.8. Alerts Color Coding Color coding of text draws attention to problems or This section describes the different types of alerts and unsafe situations� how the diver is notified of them� WHITE text indicates normal conditions by default� For a list of the alerts a diver may encounter see Warnings and Information Displays on page 86� Note that this normal condition color can be selected in the Settings > Display > Colors menu� Types of alerts .6 OC ft Dive Events 125 YELLOW is used for warnings NDL TTS Alert the user of non-critical dive events� that are not immediately

21 21 C dangerous but should be Sample warning -

No specific action is required L

INFOO2/He PPO2 E addressed� a better gas is available A

on the part of the diver� 21/00Dive Started.21 R Dive Events time out after 4 seconds or canSURFACE be FLASHING RED is used for cleared by pressing any button� h m 12 34 critical warnings that could .6 be life threatening if not Sample critical alert - Warnings OC 125 ft Continuing to breathe this gas could immediately addressed� Alert the user to critical safety information�NDL TTS be fatal

21 21 C

The cause of warnings could L

WARNINGO2/He PPO2 E

be life threatening if not A immediately addressed� 21/00LOW PPO2.21 R SURFACE Color blind users Warnings can only be cleared manually by12 theh 34 user�m Press any button to acknowledge and clear a warning� The warning or critical alert states can be 103.6ft 4:57determined without the use of color� For some critical conditions, the alert indicator will persist on screen until the warning condition abates� Warnings display on a solid inverted .6 ! background� OC : Errors 125 ft 18 Alert the user to system errors� NDL TTS 42 Doesn't flash� % Warning

21 21 C 21 Errors represent unexpected L

ERRORO2/He PPO2 E

system behavior� Contact A Critical alerts flash between inverted and Shearwater if you experience 21/00Upgrade .21Fail R normal text� a system error� SURFACE Flashes 12h 34m Alert Alert

Page 23 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

Persistent Alerts When the computer detects a dangerous situation, such as high PPO2, a warning is triggered� The large ft primary warning can be dismissed, but the alert 103.6 4:57 indicator will persist until the condition that caused the warning is resolved� ! :18 Pressing the menu button while the alert icon is present will display .3 42 the warnings overlay which lists all 38 m 21% of the current persistent alerts in ! WARNINGSTTS Limitations Of Alerts order of priority� •HIGH PPO2

U •MISSEDO2/He STOPPPO2

N All alarm systems share common weaknesses�

E Pressing the menu button a 21/00M .21 second time brings up the main :19 They can alarm when no error condition exists menu as normal� 23 (false positive)� Or they can fail to alarm when a real error condition occurs (false negative)� Audible and Vibration Alerts So respond to these alarms if you see In addition to visual alerts, the Teric them, but NEVER depend on them� Your has audible and vibration alerts .0 judgment, education, and experience are to help quickly notify the diver of OC Tec 0 m your best defenses� Have a plan for failures, warnings, errors and dive events� OCFDADECOlerts ftTTS build experience slowly, and dive within your Beep Only 20NDLft 2min 14TTS experience� O2/HeVib. OnlyT1 The alert notifications settings can -- -- P Beep + Vib. S be changed in Main menu > Alerts� 21/00SURFACE1850✘I SURFACE 2h 34m It’s important the diver is aware of what type of alert notification they can expect on a dive� The currently selected alert notifications are .6 shown on: 125 ft • The owners information screen TTS ALERTSDECO BEEP = OFF • The surface screen 14 20ft 2 O2/HeVIB. = ON T1 A Test Alerts tool is also available 21/002 Long in the Dive Tools menu and should :19 be used regularly before diving to 23 ensure the beeper and vibrator are functioning properly�

If you do not like audible or vibrating alerts, they are easily silenced�

Page 24 Doc� 15001-SI-RevE (2021-07-26) .0 Operating Instructions FD Deep 0ft 4. Safety and Decompression Safety Stop Complete When the countdown reaches zero, SAFETY STOPWATCH Stops the display changes to “Clear” and you are now clear to ascend to Safety and decompression stops are pauses inserted the surface� CLEAR into the ascent to the surface in order to reduce the risk of decompression illness (DCI)� Countdown Reset The countdown will reset if the depth SURFACE once again exceeds 11m (35ft)� 4.1. Safety Stops OC Rec

A safety stop is an optional stop added to all dives before surfacing� Safety stops can be set to fixed No Lockout for omitting times of 3, 4, or 5 minutes, set to adapt based on There is no lock-out or other penalty for 19:16 dive conditions, or turned off completely� See Deco omitting a safety stop, as they are optional� Settings� If you ascend to the surface before the safety The Teric does not do “deep safety stops”� That is, stop countdown finishes, the safety stop will there are no extra stops added around 15m to 18m appear paused, but this will disappear once (50ft to 60ft) when ascending from a no-deco dive�.6 the dive ends� OC 125 ft Safety stops always behave as follows:NDL TTS We recommend performing safety stops as planned as they offer a reduction in risk of

Safety Stop Required 21 21 C

L DCI and take little time�

INFOO2/He PPO2 E Once the depth exceeds 11m A

(35ft), a safety stop will be 21/00Safety Stop.21 R required� An alert will occur SURFACE 0 when in the safety stop depth h m range, shallower than 6m (20ft)� 12 34 SAFETY Countdown Paused 7ft /2.4m Automatic Countdown Countdown Begins Counting Countdown begins once the depth 3:22 20ft /6m becomes shallower than 6m (20ft )� Countdown Paused 0 27ft /8.3m Countdown Resumed Countdown will continue while the Paused depth remains in the range of SAFETY 35ft /11m Safety Stop Required / 2�4m to 8�3m (7ft to 27ft)� Countdown Reset Countdown Paused 3:22 42 0 If the depth goes outside of the range 2�4m to 8�3m (7ft to 27ft), SAFETY Safety Stop Thresholds - Not to scale then the countdown pauses and the remaining time displays in yellow� PAUSED

Page 25 42 Doc� 15001-SI-RevE (2021-07-26) 42 Operating Instructions

4.2. Decompression Stops Deco Stop Violation 125 If you ascend shallower than a DECO Decompression stops are mandatory stops that deco stop, but remain deeper must be followed in order to reduce the risk of than your current ceiling, stop 15m 2min decompression illness (DCI) info will display in yellow� 125 O2/He.6 If you ascend shallower than OC 125DECOft your current ceiling, the display NDL TTS Do not dive beyond your training will flash red� Significant 15m 2min stop violations will result in a 21 .621 C OC ft L

Only perform decompression diving if you have WARNINGO2/He125O2/HePPO2 E “MISSED STOP” alert� A

received proper training to do so� 21/00MISSEDNDL STOP.21TTS R Deco Stops Complete

21SURFACE21 C

Diving with any type of overhead ceiling, In OC Tec mode, once all L

INFOO2/He PPO2 E

whether in a cave or shipwreck, or from a 12h 34m A decompression stops are R decompression requirement, adds significant complete, a “Deco Clear” dive 21/00Deco Clear.21 risk� Have a plan to handle failures and never info event will be triggered� SURFACE rely solely on a single source of information� 12h 34m If enabled, the Deco Clear counter will begin counting Decompression stops occur at fixed 10ft (3m) up from zero� intervals� In OC Rec mode, once all decompression stops are Decompression stops display as follows: complete, the safety stop will begin counting down Replaces NDL 125 Once the NDL reaches zero, deco If safety stops or the Deco Clear Counter is turned off, stop information will replace it on DECO the display will say “Clear”� the left side of the Deco Row in the Standard layout, or the left side of the 15m 2min info row home screen in the Big layout� O2/He125 No Lockout for violating Deco Stops In OC Rec mode, the deco stop label DECO There is no lock-out or other penalty for appears in red as deco obligation is an violating decompression stops� emergency condition in recreational .6 OC m min diving� 12515 ft 2 The policy is to provide clear warnings that NDL O2/HeTTS the decompression scheduled was violated, Deco Stops Required to allow you to make decisions based on your 21 21 C training� An alert will indicate when L

INFOO2/He PPO2 E A Deco Stops are required R 21/00Deco Needed.21 This may include contacting your dive SURFACE insurance provider, contacting the nearest h m recompression chamber, or performing first aid 12 34 based on your training�

Page 26 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

Graph from Erik Baker’s “Clearing Up The Confusion About Deep Stops” 5. Decompression and Gradient Pressure Graph: Gradient Factors Factors 100% 80% 60% 40% 20% 0% y The basic decompression algorithm used by this computer is Bühlmann ZHL-16C� It has been modified M-value by the use of Gradient Factors that were developed Gradient by Erik Baker� We have used his ideas to create our own code to implement it� We would like to give credit to Erik for his work in education about GF Lo decompression algorithms, but he is in no way responsible for the code we have written� generates first stop The computer implements Gradient Factors creating varied levels of conservatism� The levels M-value Line

of conservatism are pairs of number like 30/70� Pressure Surface Linear function for For a more detailed explanation of their meaning, gradual change in please refer to Erik Baker’s excellent articles: “Clearing Up The Confusion About Deep Stops” and Gradient Factors “Understanding M-values”� The articles are readily available on the web� You might also want to search for “Gradient Factors” on the web� Ambient Pressure Line

Compartment inert gas pressure, absolute inert gas pressure, Compartment First GF Hi (surfacing value) The default conservatism of the system depends on Stop maintains safety margin the dive mode� 0 0 x For OC Rec mode the default conservatism setting is Ambient Pressure, absolute (increasing depth > ) medium (40/85)� • A Gradient Factor is simply a decimal fraction (or percentage) of the M-value Gradient� For OC Tec and CC/BO modes where some decompression is presumed, the default is a more • Gradient Factors (GF) are defined from 0% to 100%� conservative 30/70� The system provides several • A Gradient Factor of 0% represents the ambient settings that are more aggressive than the default� pressure line� Do not edit GF values until you understand the • A Gradient Factor of 100% represents the M-value line� effects. • Gradient Factors modify the original M-value equations for conservatism within the decompression zone� • The lower Gradient Factor value (GF Lo) determines the depth of the first stop� Used to generate deep stops to the depth of the "deepest possible deco stop" • The higher Gradient Factor value (GF Hi) determines the surfacing tissue supersaturation�

Page 27 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

5.1. Decompression Information Example: A diver on a decompression dive to 40m/131ft for 40 minutes with GF settings of Accuracy 45/85 has two gases programmed into their computer and turned on: 21/00 & 99/00. The diver’s Decompression information displayed by this decompression schedule will be calculated based on computer, including NDL, stop depth, stop time, and breathing 21% oxygen for the descent, bottom and TTS are predictions. These values are continuously ascent phases of the dive until the diver ascends to recalculated and will change with changing 6m/20ft. At 6m/20ft the PPO2 of the 99/00 mix is conditions. The accuracy of these predictions 1.606 (less than 1.61), so it is the best decompression is dependent on several assumptions made by gas available. the decompression algorithm. It is important to understand these assumptions to ensure accurate Decompression information for the remaining stops decompression predictions. will be calculated and displayed assuming the diver is going to switch to this better gas. This dive It is assumed that the diver’s ascent rate is 10m/min profile indicates these stops would be 8 minutes (33ft/min). Ascending significantly faster or slower at 6m/20ft and 12 minutes at 3m/10ft. If the diver than this will impact decompression obligations. It never makes the switch to 99/00, the computer is also assumed that the diver is carrying and plans will not allow them to surface until adequate to use every gas that is currently turned on. Leaving off-gassing has occurred, but it will continue to gases that are not expected to be used turned on will assume the diver is about to make the gas switch result in inaccurate time to surface, decompression and the decompression times given will be grossly stop and decompression time information being inaccurate. The 6m/20ft stop will take 19 minutes to displayed. clear and the 3m/10ft stop will take 38 minutes to clear. That is a total time to surface difference of 37 On ascent, it is assumed that the diver will perform minutes. decompression stops using the gas with the highest PPO2 below the OC Deco PPO2 value (default 1.61). In a lost gas scenario or in the event a diver forgets If there is a better gas available, the current gas will to turn off a gas they are not carrying before a dive, be displayed in yellow, indicating that a gas change gases can be turned off during the dive in Main menu is expected. The decompression prediction displayed -> Edit Gases. always assumes that the best gas will be used. Even if the switch to a better gas has not been completed yet, decompression predictions will be displayed as if the switch is about to occur in the next 5 seconds.

Divers can encounter longer than expected decompression stops as well as inaccurate time to surface predictions if they fail to switch to a better gas when prompted by the computer.

Page 28 Doc. 15001-SI-RevE (2021-07-26) Operating Instructions

6. Example Dives .0 .3 6.1. OC Rec Example Dive OC REC 0m 9m NDL TTS NDL TTS This is an example of displays that might be seen on a -- -- 99 1 simple no-decompression dive in OC Rec Mode using SURFACE the Big layout configuration. 2h 34m 2:26 % % 1. Pre-Dive - This is the surface screen immediately 21 21 before descending. At the surface, the cyan OC Rec 1. Pre-Dive 2. Descent icon is visible, the battery is shown to be about half full, and the alerts are set to sound and vibrate.

2. Descent - As we pass through 9 meters, the time- to-surface (TTS) shows one minute. This shows .5 .2 that the computer expects the diver to ascend at 33m 25m 10 meters per minute or 33 feet per minute. All NDL TTS NDL TTS decompression (and NDL) predictions are based on 10 9 4 9 this assumed ascent rate. A safety stop is not included : for dives shallower than 11m (35ft). 10:26 18 32 21% 21% 3. Max Depth - The no-decompression limit starts off 3. Max Depth 4. Low NDL showing 99, but then starts to show smaller numbers as depth increases. The 3rd screen shows that we will go into deco in 10 minutes. A 5 minute safety stop is now included in the predicted TTS.

4. Low NDL - When the NDL goes below 5 minutes, it .9 .5 turns yellow indicating that we should begin making 13m 6 5m our ascent to avoid a decompression obligation NDL TTS SAFETYNDL TTS 48 7 3:22 4 5. Ascent - As we ascend our NDL begins increasing :32 : again indicating that we can stay a bit longer at this 24 34 21 shallower depth. The ascent rate indicator shows that 21% 21% we are ascending at about 6 mpm or 22 fpm. 5. Ascent 6. Safety Stop 6. Safety Stop - When we ascend shallower than 6m we are prompted to perform a safety stop. In this case Although safety stops are not mandatory, gas the safety stop setting has been set to Adapt, and supply permitting, best practice is to perform a because of our deep profile, the countdown began at safety stop on every dive. 5 minutes. A CLEAR indicator will inform us when the safety stop has been completed.

Page 29 Doc. 15001-SI-RevE (2021-07-26) Operating Instructions

6.2. OC Tec Example Dive 0m Edit Gases Deco This is an example of displays that might be seen on a ON 99/00 Deco Model ZHL16C+GF multi-gas decompression dive in OC Tec Mode using ON 50/00 the Standard layout configuration� ACT GF Conserv. 18/45 High 35/75 OFF 00/00 Max Depth: 60 meters Bottom Gas: Trimix (18/45) Last Stop OFF 3 m Bottom Time: 20 minutes Deco Gases: 50% & 99% O2 00/00 Back 0:00 1� OC Gas Setup - Best practices include checking 1�OC Gas Setup 2�Verify Deco your gas list before each dive� This screen is available Settings in the Edit Gases section of the main menu in Dive Mode� All gases that are turned on will be used to calculate the decompression scheduled� Make sure to DECO DECO turn off gases you are not carrying� OC OC Stp Tme Run Gas GasStp UsageTme Run (L) Gas 2� Verify Decompression Settings - It is also prudent 60 bot 20 18/45 99/00 537 to ensure all other settings are correct before 27 asc 24 18/45 50/00 646 18/45 3136 starting every dive� In addition to checking gases, 27 1 25 18/45 24 2 27 18/45 we recommend verifying values in Dive and Deco Settings�

3� Plan Dive - Use the dive planner found in Dive Tools 3�Plan Dive - 3�Plan Dive - to check the total runtime, decompression scheduled Deco Scheduled Gas Requirement and gas requirements for the dive�

The on-board deco planner is limited in functionality, so for complex dives we recommend using desktop or .0 .6 OC Tec 0 m 33 m smart phone dive planning software� DECO TTS NDL TTS --m -min -- 5 4 4� Pre-Dive - Prior to beginning the dive we can see O2/He PPO2 O2/He PPO2 from the mode indicator that we are in OC Tec mode� 18/45 .18 18/45 .73 Our active gas is currently 18/45, our battery is about SURFACE half charged, and only vibration alerts are active� :19 12h 34m 3 5� Descent - As we descend our dive time begins 4� Pre-Dive 5� Descent counting, the Deco Box begins showing our NDL�

(Continued on next page)

Page 30 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

OC Tec Example Dive (cont.) .3 .4 m m 6� Max depth - Once NDL hits 0, deco stops will be 59 42 10 DECO TTS DECO TTS needed� Stop requirements display in the deco box in place of the NDL� TTS has increased to include deco 27m 1min 58 24m 2min 54 O2/He PPO2 O2/He PPO2 stop time� 18/45 1.23 18/45 .93 7� Ascent - It is safe to ascend to 24 meters� 2 minutes :22 :35 must be spent at that deco stop� While ascending, 19 22 the bar graph to the right of the depth shows the 6� Max Depth 7� Ascent ascent rate (10 mpm)� All decompression predictions are made assuming an ascent rate of 10 meters per minute�

8� Gas Change - All decompression predictions are .2 .2 21 m 7 m made assuming you will switch to the best available DECO TTS DECO TTS gas on ascent� At the 21m stop, the breathing gas

21m 1min 44 9m 6min 22 C

turns yellow indicating that a better breathing gas L

O2/He PPO2 WARNINGO2/He PPO2 E A

is available� If the switch is not made, deco stop and Missed Deco Stop R time information will be inaccurate� 18/45 .56 50/00 .86 :14 ! :33 9� Missed Deco Stop - If you ascend shallower than 28 40 the decompression ceiling the Deco information 8� Gas Change 9�Missed Deco will flash red� If you fail to descend, a missed deco Stop stop warning will be triggered and the Alert icon will appear� Acknowledge and clear the warning by pressing any button� Re-descend deeper than the .1 stop depth to clear the flashing text and alert icon� 3 m CLEARDECO TTS 10� Deco Clear - Once all decompression obligation 1:14 1 has been cleared, the deco clear counter begins O2/He PPO2 counting up from zero� 99/00 1.30 Lorem ipsum63:47 10�Deco Clear

End of example�

Page 31 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

6.3. CC Example Dive 0m 0m CC Gases BO Gases This is an example of displays that might be seen on a ACT 10/50 ON 50/00 multi-gas decompression dive in CC/BO Mode using OFFON 00/00 ON 21/00 the Standard layout configuration. ACTOFF 00/00 ACT 14/55 OFF 00/00 OFF 00/00 Max Depth: 90 meters Diluent Gas: Trimix (10/50) OFF 00/00 OFF 00/00 Bottom Time: 20 minutes Bailout Gases: 14/55, 21%, 50% Back Back 0:00 0:00 1. CC Gas Setup - Best practices include checking your 1. CC Gas Setup 2. OC Gas Setup gas list before each dive. This screen is available in Edit Gases section of the main menu in CC mode. For this dive the only diluent gas is Trimix 10/50. (10% O2, 50% He, 40% N2) Deco DECO Deco Model CC 2. OC Gas Setup - Several OC gases are required for ZHL16C+GF Stp Tme Run Gas this dive. If we switch to BO mode, we can use the 90 bot 20 10/50 GF Conserv. Edit gases section of the main menu to define our 45 asc 25 10/50 High 35/75 45 1 26 10/50 bailout gases as well. Last Stop 42 2 28 10/50 3 m We will verify we are carrying sufficient bailout gas when we plan the dive. 3. Verify Deco 4. Plan Dive - 3. Verify Decompression Settings - It is prudent Settings CC Scheduled to ensure all other settings are correct before starting every dive. In addition to checking gases, we recommend verifying values in Dive and Deco DECO DECO Settings. BO Bailout(BO) Stp Tme Run Gas Gas Usage (L) 4. Plan Dive - Use the dive planner found in Dive Tools 66 asc 23 14/55 50/00 1993 to check the total runtime, decompression schedules 42 asc 26 21/00 21/00 732 42 1 27 21/00 14/55 293 and bailout gas requirements for the dive. 39 1 28 21/00

For closed circuit dives, two decompression schedules will be generated. A primary schedule for closed circuit deco, and a bailout decompression schedule. 4. Plan Dive - 4. Plan Dive - BO Scheduled Bailout Gas The on-board deco planner is limited in functionality, Requirement so for complex dives we recommend using desktop or smart phone dive planning software.

(Continued on next page)

Page 32 Doc. 15001-SI-RevE (2021-07-26) Operating Instructions

CC Example Dive (cont.) .0 .0 Note on Hypoxic Diluents CC 0 m CC 0 m Hypoxic diluents such as 10/50 in this DECO TTS DECO TTS example require special training since they --m -min -- --m -min -- can be deadly near the surface� O2/He SP CNS MOD DilPO2 10/50 0.7 0 % 152 .10 5� Pre-Dive - Prior to beginning the dive we can see SURFACE SURFACE 0.7 from the mode indicator that we are in CC mode� Our 14h 13m 14h 13m active diluent gas is set to 10/50, our set point is 0�7, 10/50 the Teric’s battery is about half charged, and only 5� Pre-Dive 6� Diluent Check vibration alerts are active�

6� Diluent Check - Pressing INFO a few times brings up the info screen that shows the diluent PPO2� The .8 .3 red indicates the diluent is unsafe to breath directly� CC 15 m CC 46 m NDL TTS NDL TTS

This information can be viewed at any time to verify 52 2 C 4 5 L

INFOO2/He SP E O2/He SP the diluent is safe or to check what the expected A

PPO2 will be when flushing with diluent at depth� 10/50Auto SP 1.3Up R 10/50 1.3 :37 :53 7� Automatic Set point Switch - The optional auto 0 1 set point switch was enabled with a depth setting of 7� Automatic Set 8� Decreasing NDL 15m� So as we cross 15m on the descent, the set point automatically switches from 0�7 to 1�3� point Switch

8� Decreasing NDL - As we descend deeper, the NDL decreases� The TTS shows it will take 5 minutes to .3 .6 ascend to the surface at 10m/min (33ft/min)� CC 90 m CC 61 m 3 DECO TTS DECO TTS 9� Bottom Time - We have completed the bottom 48m 1min 92 48m 1min 96 time� The TTS indicates we have about 1�5 hours of O2/He SP O2/He SP decompression to do� The first stop will be at 48m for 10/50 1.3 10/50 1.3 1 minute� 1:53 29:12 10� Ascending to the First Stop - Here we are 9� Bottom Time 10� Ascending to ascending at 3m/min� This is slower than the First Stop expected 10m/min ascent rate� This slow ascent has caused the TTS to rise, as most tissues are still on- gassing�

(Continued on next page)

Page 33 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

CC Example Dive (cont.) 11� First Deco Stop - The slow ascent has caused the .3 .4 first stop to clear before we reached it� This often CC 45 m CC 30 m happens with slow ascents� DECO TTS DECO TTS min min 45m 1 98 30CCm >>2 BO 98 12� A Problem Has developed - There is a problem O2/He SP O2/He with the O2 readings on the rebreather controller 10/50 1.3 10/50SP 1.3 >>1.30.7 and the decision has been made to bail out� After :27 :33 physically switching the BOV or mouthpiece, the 34 42 computer needs to be set to BO mode for proper deco calculations� 11� First Deco Stop 12� A problem has developed 13� Bailout - One Press of the MENU button brings up “SWITCH CC -> BO” as the first menu item� Pressing SELECT (FUNC button) makes the change� .4 .2 BO 30 m BO 21 m Note the Dive Mode indicator has changed to BO to DECO TTS DECO TTS indicate the bailout condition� The info row has also 30m 2min 92 21m 5min 80 changed to reflect the customization settings for BO O2/He PPO2 O2/He PPO2 mode� The best BO gas was automatically selected, 21/00 .85 21/00 .66 and the deco schedule has been adjusted based on :35 :35 the BO gases� 42 42 13� Bailout 14� Gas Switch 14� Gas Switch Required - We are now at 21m, Required having completed a few more deco stops� The gas is now displaying in yellow, indicating a better gas is available� 21m Select Gas .1 15� Gas Switch - Pressing MENU twice brings up the 50/00 BO 3 m CLEARDECO TTS “SELECT GAS” option in the main menu, and pressing ACT 21/00 1 SELECT (FUNC button) enters it� The best gas will 14/55 3:14 already be the initial selection, just press SELECT O2/He PPO2 once more time to make it the active gas� 50/00 .65 Back :18 16� Deco Clear - Follow the deco stops until they 42:44 122 have all cleared and the Deco Clear Counter begins 15� Gas Switch 16� Deco Clear counting up from zero�

End of example�

Page 34 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

6.4. Gauge Mode

Gauge Mode turns the Teric into a simple depth and time display (a�k�a� a bottom timer)� .0 GA m Since decompression tissues are not tracked in Gauge 0 Mode, changing to or from Gauge Mode resets the MAX STOPWATCH deco tissues� ` 25.9m 0:00 By default, gauge mode is displayed in “Big” layout AVG TIME with the Max depth and Stopwatch shown in the info row� 14.3m 9:22 SURFACE Change to the Standard layout configuration for additional on screen information and increased 12h 34m customizability� Big layout - Default Gauge Learn about home screen customization options on Mode configuration� page 22�

While on the surface, the MAX and AVG values display the maximum and average depth of the last dive� The AVG depth displayed on the surface is for the entire dive, regardless of whether the reset average depth option was used� The dive log also records the average depth for the entire dive� .0 GA 0 m Gauge Mode Features: MAX STOPWATCH • Resettable average depth • Stopwatch 25.9m 0:00 (These features are available in all modes) AVG TIME 14.3m 9:22 SURFACE 12h 34m Standard layout - Alternate Gauge Mode configuration�

Page 35 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

7. Freedive Mode 7.1. Default Freediving Layout

Freedive Mode optimizes the Teric for freediving. By default, Freedive Mode uses the Big layout. It shares most features with the other dive modes but has a few Although many of the basic functions of the computer unique characteristics. are the same as in other dive modes, Freedive Mode has several unique features that are covered in this • Active Freediving Set shown beside Mode Indicator. section. • Last dive time and max depth on home screen • Ascent / descent shown in feet per second (fps) or Since decompression tissues are not tracked in meters per second (mps) instead of fpm / mpm. Freedive Mode, changing to or from Freedive Mode resets the deco tissues. Free Dive Mode features: .0 • High Speed depth sampling - 4 samples / second. • Fully customizable auditory and vibration alerts FD Deep 0m 0.5 • Freedive focused Info screens MAX 16.2m STOPWATCH • Quick Log Tagging LD 1:01 0:00 SURFACE

WARNING 19:16 Breath-hold diving involves risks that are not obvious. Do not engage in these activities Like in OC Rec and Gauge Mode, in Freedive Mode, the without proper training as well as a complete right home screen slot can be customized in the Big understanding and acceptance of the risks. Layout.

This manual is not a substitute for professional training.

Page 36 Doc. 15001-SI-RevE (2021-07-26) Operating Instructions

7.2. Freediving Info Screens Freedive Mode info screen sequence:

Freedive Mode has a unique info screen sequence Return to Main Screen by: which can be seen on the right� •Pressing MENU button .0 •Stepping past last screen Max and average descent and ascent screens are only FD Deep 0m 0.5 •Waiting 10 Seconds available in freediving mode (in either fps or mps)� MAX 16.2m STOPWATCH LD 1:01 0:00 These values can also be added to the home screen in SURFACE Freedive Mode� m min 19:16 MAX DESC. AVG DESC. m min m m 0.4 s 0.4 s MAX DESC. AVG DESC. m m m SURFACEmin 0.4 s 0.4 s SURFACE MAX ASC. AVG ASC. m min ft ft MAX ASC. AVG ASC. 1.3 s 1.3 s m m 0.4 s 0.4 s SURFACE SURFACE 7.3. Freediving Sets m min N NE A freedive set is a collection of settings customized 24 SURFACE for a specific type of freediving� m min TEMP BATTERY The Teric supports 3 independently customizable 21�C 49% sets� For each set, the user can customize the alerts SURFACE m min activated during a dive as well as a handful of settings mBar NOW mBar SURF that will often change between activities� Fresh water in a pool vs salt water in the ocean for example� 2564 1013 SURFACE m min See how to Edit Freedive Sets on page 63� TIME DATE 2:31 JUN-02 Press the INFO button SURFACE (bottom right), to step through Info Screens

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Freediving Alerts Time Alerts: Customizable in each set, these alerts are useful for Notify Time, Warn Time, Max Time, and Surf Time all notifying the diver of different phases of a freedive. trigger when time thresholds have been exceeded on a dive or in the case of Surf Time, after the diver has Freediving alerts differ from normal alerts in several been at the surface for a defined amount of time. ways. • Only appear for 4 seconds. Repeat Alerts: • Come in 3 colors depending on urgency. Depth Repeat, Time Repeat, and Surf Repeat differ • Fully customizable within a set. from simple depth and time alerts in that they are • Each has a customizable depth or time as a repeatedly triggered at the user-defined interval. triggering condition For example, Time Repeat will vibrate or beep every 15 Freediving alert types: seconds while diving. This gives the diver a non-visual .0 Info - Appears in blue. indication of the passage of time.

FD Deep ft

0 C

L All of the freediving alerts are listed in the table below:

INFOMAX STOPWATCHE

ft Freediving Trigger Alert Type

103.6Notify Time4:57

Alert Condition

SURFACE

Caution - Appears in yellow.0 . Offending triggering

Notify 1 Depth Info

condition also turns yellow.

Notify 2 Depth Info

Deep

Warn Depth Depth Caution L

InfoMAX19:16STOPWATCHE

A Max Depth. Depth Danger

ft Asc. Notify Depth Info 103.6Warn Time4:57

Notify Time Time Info

SURFACE

Danger - Appears in Red. Offending triggering

Warn Time Time Caution

condition also turns red.

Max Time Time Danger

Deep

0 C Surf Time 1 Time Info

19:16 L

InfoMAX STOPWATCHE Surf Time 2 Time Info A

R Depth Repeat Depth Info

103.6Notify Time4:57

Time Repeat Time Info

SURFACE

Depth Alerts: Surf Repeat Time Info

Notify 1, Notify 2, Warn Depth, and Max Depth all

trigger when their respective depth thresholds have

Freediving Settings:

been exceeded19:16 on decent .

Ascent Alert: Regularly test your alerts with the Test Alert Asc. Notify indicates when a depth threshold has been tool described on page 42 to ensure they exceeded on ascent. are working and you can hear/feel them through your exposure suit.

Page 38 Doc. 15001-SI-RevE (2021-07-26) Operating Instructions

Customizable freediving settings include: • Water Type • Dive Start Depth • Dive End Depth • Dive Start Delay • Dive End Delay

These settings will very depending on the location and the type of freediving (ex. dynamic apnea vs. free immersion). So, customizing them within a set, makes it much easier to move between freediving activities without needing to define each setting individually every time.

Note that delays are added back to / removed from dive statistics once the dive is underway. Depth and time information will be the same regardless of the start / end delays and depths.

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8. Dive Tools Compass pop-up Access the compass pop-up from the Dive tools The Dive Tools can be found in the section of the main menu� The pop-up will time out main menu of every dive mode after 10 seconds� and can be accessed both at the .0 surface and while diving� OCFD DECOS elect0 ftGasTTS From this pop-up you can mark and unmark headings NDL TTS . 6 20ft 2min 14 Dive Tools ft Stopwatch functionality is covered K125K M and show or hide the Outer R O2/He-- --T1 R M A

P A Compass COMPASS AR Edit Gases TTS DECO on page 57 in the Watch Tools S M R Ring compass overlay� M K I K SURFACE NN 21/00 1850

U U ft min

section�

14 20 2

h m

2 34

O2/He T1

The current heading in degrees

E 76�

MARK = 24�

% S

appears in the center of the

21/00 1850

Mark = 257�

HIDDEN

8.1. Compass

pop-up�

23 :19 The Teric contains a tilt-compensated digital compass�

Compass Features Mark a heading • Smooth, high speed refresh rate The heading degree mark is displayed at the bottom • Multiple viewing options of the compass pop-up� • User settable heading marker with reciprocal • True North (declination) adjustment The current heading appears

• +- 45 degree tilt-compensation . 6

ft green when within 5 degrees K125K M RR Compass M A A of your mark� COMPASS AR TTS DECO M R M K K Viewing the compass NN

U U ft min

14 20 2

Green arrows indicate the

O2/He T1

When enabled, the compass can be viewed in three

E 27�

direction of your mark when

MARK = 24�

ways: I

21/00 1850

Mark = 257�

HIDDEN

you are more than 5 degrees

• As an Info screen

:19 • In the Compass Pop-up 23 off course • As an overlay A marked heading appears on the compass info Compass info screen screen in green, while the reciprocal heading is shown Press the INFO button until the info row shows the on the info screen in red� Like on the pop-up, green compass info screen� Unlike the regular info screens, arrows point in the direction of your mark when off course by 5 degrees or more� the compass never times out when using the Standard m min layout� N NE m min 24 SURFACE N NE m min 24 N NE SURFACE 204 SURFACE

Page 40 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

Outer Ring Compass Overlay The compass overlay can show north and your Compass Limitations marked heading at all times� It is important to understand some compass N Select “Show” on the compass limitations before use� pop-up to display the compass . 6

ft 125K M overlay� R A Calibration: A COMPASS R TTS DECO M K The digital compass needs regular calibration� This N

U ft When enabled, a red north

14 20 2

can be done in the Settings > Compass menu and

O2/He T1

arrow and green heading

90�

takes only one minute� See the compass sub-section

MARK = 92�

H marker will remain at the edge

21/00

of the Settings Menu Reference on page 76 for

of the screen tracking their

:19 compass calibration instructions� 23 marks� Interference: When the overlay is enabled, Metal objects, permanent magnets, and other N green arrows at the top of the sources of magnetic interference such as electric .3 display indicate the direction m motors should be kept away from the compass� We 59 of your mark when more than DECO TTS recommend comparing the compass accuracy to a 5 degrees off course� 27m 1min 58 known good compass with and without the interfering O2/He PPO2 object in place to see if it has an effect� 18/45 1.23 :22 Shipwrecks may interfere with the compass reading 19 and so the compass function should not be used near or inside of a shipwreck� Use the same discretion and training as you would with a traditional compass�

Magnetic declination (also called magnetic variation) is the difference between magnetic and true north� Check compass calibration before diving This can be compensated in the Compass Setup Check compass calibration: menu using the declination setting� The magnetic 1� Place the Teric on a flat surface, declination varies around the world, so it will need to away from metal objects� be readjusted when traveling� 2� Mark a heading� 3� Rotate the computer 180 degrees� Magnetic inclination (or magnetic dip) is how much 4� Ensure the compass is pointing at the the Earth’s magnetic field points up or down� The reciprocal heading� Teric’s compass automatically compensates for this angle� However, in some locations (near the poles) the See page 76 for compass calibration inclination angle can exceed 80° (i�e� the magnetic instructions� field points almost directly up or down), in which case the specified accuracy may not be met�

Page 41 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

8.2. Tag Log 8.4. Test Alerts

The tag log feature is useful The Test Alerts pop-up provides a quick way to ensure .6 for marking a point of interest your alerts are working and that you are able to feel OC 125 ft in the dive log for later review. them through your exposure suit. TTS TAG DECO These tags will appear in Interest the dive log when uploaded 14 20ft 2min O2/HeNavPoint T1 to your phone or personal Alarm P Danger S computer. .6 Alert 21/00 1850 I 125 ft 1 Short TTS ALERTSDECO ! :19 Basic tag titles are available 2 Short BEEP = OFF 3 Short 23 from the tag log pop-up to 14 20ft 2 O2/HeVIB. = ON T1 1 Long help distinguish tags. 2 Long 2 Long 21/00 3 Long The tag log pop-up will time out after 10 seconds. :19 Negative 23 Positive Click

8.3. Reset Average Depth Use the up and down arrows to select an alert and press select to test it. This feature is useful if you would like to get a sense of the average depth of a particular phase of a dive, such The Test Alerts pop-up should be used regularly if you as the bottom, or deco phase. Reset Average Depth is use vibration or auditory notifications. available in every dive mode. Note, this feature only tests the different alerts that may occur during a dive. Which alert activates in each Warning, Info, or Error situation is not customizable with the exception of Freediving Alerts (page 38).

Caution

Although vibration and auditory alerts are very useful, never rely on them for your safety. Electromechanical devices can and will eventually fail.

Always be proactively aware of your depth, no-decompression limit, gas supply, and other critical dive data. You are ultimately responsible for your own safety.

Page 42 Doc. 15001-SI-RevE (2021-07-26) Operating Instructions

8.5. Deco Planner Important! Introduction The Teric’s Deco Planner makes the following • Calculates decompression profiles for simple assumptions: dives. • Descent rate is 18m/min (60ft/min) and • Calculates gas consumption based on RMV the ascent rate is 10m/min (33ft/min). • In closed-circuit (CC) mode, also calculates open- • For OC, the gas in use will be the gas with circuit bail-out (BO) the highest PPO2 within the PPO2 limits. • For CC, the diluent in use will be the gas The Teric’s deco planner is best suited to with the highest PPO2 within PPO2 limits. decompression diving. For no-decompression diving, • The planner will use the configured last use the quick NDL Planner described on page 45. stop depth. • For CC, the PPO2 is constant for the entire Setup dive. The planer uses the current gases programmed • The RMV is the same while diving as into the Teric in the current dive mode, as well as during deco the current GF low/high settings. Deco profile is computed for the current Dive Mode (CC or OC). Read more about PPO2 Limits on page 65. When used on the surface Enter the expected surface DECO interval, bottom depth, bottom time, respiratory minute When used during a dive RUN PLAN Computes the decompression profile assuming the Starts in now volume (RMV) and Set Point Depth 45 m 30min (closed-circuit only). ascent will begin immediately. There are no settings to enter. (RMV is last used value) Note: Residual tissue loading Limitations 1.3 (and CNS%) from RMV 14 SP The Teric Deco Planner is intended for simple dives. Back recent dives will be used in calculating the profile Multi-level dives are not supported.

When the correct values are The Deco Planner does not provide thorough DECO entered, select “Run Plan” validation of the profile. For example, it does not check for nitrogen narcosis limitations, gas usage Ready to Plan and confirm decompression settings and starting CNS. limitations, CNS percentage violations, or isobaric GF: counter-diffusion risks due to sudden helium switches. 30/70 Last Stop: 3m The user is responsible for ensuring a safe profile is Start CNS: followed. 0%

Page 43 Doc. 15001-SI-RevE (2021-07-26) Operating Instructions

Results Screens For CC/BO dives there will be two schedules, one for The results are given in tables showing: each operating mode. Stop Depth In meters (or feet) Tme Stop Time In minutes DECO DECO Bailout(BO) Bailout(BO) Run Run Time In minutes Stp Tme Run Gas Stp Tme Run Gas Gas Gas Used %O2/%He 18 asc 33 36/00 9 5 44 36/00 18 1 34 36/00 6 7 51 99/00 15 2 36 36/00 3 11 62 99/00 12 3 39 36/00 The first few rows will show the bottom time (bot) and the ascent legs (asc) to ascend to the first stop. Multiple ascent legs may be shown if gas switches are needed For OC or BO profiles, a total gas consumption report is also given. If more than 2 stops are needed, the results will be split onto several screens. Scroll down to step through DECO the screens. Bailout(BO) Gas Usage (L) 99/00 357 DECO DECO 32/00 490 CC CC Stp Tme Run Gas Stp Tme Run Gas 45 bot 30 10/50 15 2 38 10/50 21 asc 33 10/50 12 3 41 10/50 21 1 34 10/50 9 5 46 10/50 18 2 36 10/50 6 7 53 10/50 If no decompression is required, no table will be shown. Instead, the total No-Decompression-Limit (NDL) time in minutes, at the given maximum depth A summary screen shows the total dive time, the time will be reported. Also, the gas quantity required to spent on deco and final CNS% after the last page of surface (bailout in CC) will be reported. the decompression schedule. DECO DECO CC No Deco Stops. CC Total NDL at 18ft CC Summary is 129 min. Run: 63 min BO gas quantity

Deco: 33 min is 48 Liters. CNS 35 % Next to Plan BO

Page 44 Doc. 15001-SI-RevE (2021-07-26) Operating Instructions

8.6. NDL Planner

The No-Decompression Limit (NDL) Planner is a quick way to NDL determine how much bottom time is available without the need for decompression stops. Next dive in 1h00m A surface interval duration from none up to 1 day can be applied to account for expected off-gassing.

The results are a list of depths, along with the NDL time at that depth and the best of the NDL programmed gases to use at that depth. Only programmed gases are Depth NDL Gas used. 24m 35min 36% 27m 25min 36% 30m 16min 32% 33m 13min 32%

Page 45 Doc. 15001-SI-RevE (2021-07-26) Operating Instructions

8.7. Air Integration (AI)

The Teric is equipped with 4-transmitter air integration capability�

This section covers operation of the AI feature�

AI Features • Simultaneous wireless pressure monitoring of up to 4 tanks� • Units in PSI or BAR� • Gas Time Remaining (GTR) and Surface Air Consumption (SAC) rate based on one tank� • Sidemount support for SAC, GTR, and Redundant Time Remaining (RTR) • Sidemount Tank Switch Notifications • Logging of pressure, GTR and SAC • Reserve and critical gas pressure warnings�

8.8. What is AI? Shearwater Swift Wireless Transmitter AI stands for Air Integration� On the Teric, this refers to a system that uses wireless transmitters to measure the gas pressure in a SCUBA tank and transmit this information to the Teric dive watch for display and logging�

Data is transmitted using low-frequency (38kHz) radio frequency communications� A receiver in the Teric accepts this data and formats it for display�

The communication is one-way� The transmitter sends Use a backup analog SPG data to the Teric, but the watch does not send any data to the transmitter� Always use a backup analog submersible pressure gauge as a redundant source of gas pressure information�

Page 46 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

8.9. Basic AI Setup

This section will get you started with the basics of AI on the Teric� Advanced setup and detailed descriptions will be covered in later sections�

Install the Transmitter Before using the AI system, you will need to install one or more transmitters on a scuba tank first stage Range regulator� 3 ft (1 m)

The transmitter must be installed on a first stage port labeled “HP” (high pressure)� Use a first stage regulator with at least two HP ports, so that a backup analog submersible pressure gauge (SPG) can be used� A backup SPG is recommended

Position the transmitter such that it is on the same side of your body as you wear your Teric handset (FIGURE 5)� Range is limited to approximately 1 m (3 ft)�

A high-pressure hose may be used to relocate the transmitter for better reception or convenience� Use hoses rated for a working pressure of 300 Bar (4500 Range PSI) or higher� 3 ft (1 m)

Some transmitters require a wrench (11/16” or 17mm) to tighten or loosen Avoid hand tightening or loosening unless otherwise specified by the transmitter manufacturer, as this may damage the transmitter� Install transmitter on 1st stage HP port Install transmitter on the same side of your body as the handset� The Shearwater Swift transmitter can be installed Range is approximately 3 feet (1 m)� without tools�

Page 47 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

Turn on the Transmitter Pair the Transmitter Turn on the transmitter by opening the tank valve� The Each transmitter has a unique serial number etched transmitter will automatically wake up when it detects on its body� All communications are coded with this pressure� number so that the source of each pressure reading can be identified� Pressure data is transmitted approximately every 5 seconds�

Turn off the Transmitter To turn off the transmitter, close the tank valve and purge the second stage regulator to drain pressure from the hoses� The transmitter will automatically power down after 2 minutes of no applied pressure�

Enable AI on the Teric On the Teric, navigate to the Settings > AI menu� Change the AI Mode setting to On.

Settings AI

Gases Pair the transmitter by going to the Tx Setup menu AI Mode option, and selecting T1� Turn on T1, then enter the AI|Off On 6-digit transmitter serial number into the T1 Serial # Compass|On Tx|Off setting� You only need to set this once, as it will be permanently saved in the settings memory�

Tx T1 When AI Mode is set to Off, the AI sub-system is T1 completely powered down and does not consume On any power� When on, the AI system increases power Serial T1|123456 consumption by approximately 10%� 285817 T2|Off Rated Note that AI is never on when the Teric is in watch 207 BAR mode�

More information about settings in the AI Settings menu can be found on page 74� More information about settings in the T1 & T2 Settings menu can be found on page 74�

Page 48 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

Add an AI display to the home screen AI information is automatically displayed as an info screen when the AI feature is enabled, however, the main screen will not show AI information until manually added�

In OC Rec mode, when using the Big layout, the right Info Row slot can be customized to show AI information� Check that your tank valve is open OC REC Home Screen .0 Always take a few breaths from your regulator or purge your OC Rec 0ft regulator’s second stage while monitoring your tank pressure NDL T1 NDL T1 for a full 10-15 seconds prior to entering the water to ensure B B A A your tank valve is turned on. -- 120 R -- 120 R Back SURFACE Reset 2h 34m If the fi rst stage regulator is charged but the tank valve has been closed, the breathing gas available to the diver % 21 will decrease rapidly and within a few breaths the diver will face an “out of air“ situation. Unlike an analog gauge, the air pressure reported on the Teric will only update every In any SCUBA mode, when using the Standard layout, 5 seconds, so the pressure reported by the Teric must be the info row can be customized extensively to show monitored for longer than that (we suggest 10-15 seconds) to AI information� ensure the tank valve is open.

OC TEC Home Screen .0 Including a regulator purge test followed by 10-15 seconds of OC Tec 0 m air pressure monitoring before entering the water as part of # Values: 3 DECO TTS your pre-dive safety check is a good way to mitigate this risk. T1 �+5 T2 --m -min -- 120 0 98 T1 �+5 T2 Back 120 0 98 Reset SURFACE 12h 34m 18/45

Use the Settings > Dive > Home Screen menu to add an AI display to your home screen�

Find more information about Home Screen Customization on page 22�

Page 49 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

8.10. AI Displays Tank Pressure Display The pressure displays are the most fundamental AI There are several types of display field that are used displays, showing pressure in the current units (PSI or to display AI information: Bar)� 1) Tank Pressure 2) SAC Normal Pressure Display: 3) GTR m min m min 4) RTR (sidemount only) T1 PSI T1 Bar P B 5) Mini combination display S Display A Display 1753 I 170 R m m minmin m min m min SURFACE LowSURFACE Pressure warnings: T1 T1SAC T1 GTRT1T1 SACT1T1 GTRGTRT145 T2 m min m min P B B T1 Reserve T1 Critical S APSI A P B I Rmin R SAC1.1 S Pressure A Pressure 175312016 12045 1.1120 45 98 682 I 29 R SURFACESURFACETank Gas Time SURFACESurface Air SURFACEMini ReserveSURFACE Pressure thresholdsSURFACE can be managed in the AI Pressure Remaining Consumption Combination settings� See page 74 for details�

These displays can be viewed in two ways: No Communication Warnings: 1) Added to a customizable zone on the home screen 2) Most can be viewed on the AI info screen� COMMS T1 No communication for P Alternates P 30 to 90 seconds S S I 3042 I Renaming Transmitters 3042 Transmitter titles can be customized in the transmitter No communication for setup menu� This makes it easier to keep track of COMMS T1 P Alternates P more than 90 seconds which transmitter is reporting which cylinder pressure� S S ---- I ----I Each transmitter title has 2 characters that apply to all AI displays� The following options are available� .0 Low Transmitter Battery Warnings: First Character: T, S, B, mO, or D 67 Low Bat T1 Transmitter battery DECO TTS P Alternates P Second Character: 1, 2, 3, or 4 S S should be replaced 39m 1 min 57 3042I 3042I soon 4-tank S1 D1 196 S2 sidemount Low Bat O2 206 T1 Transmitter battery 130 145 configuration P Alternates P S S should be replaced Renaming is for display purposes only� There is no 3042I 3042I immediately relationship between: a19 transmitter title and gas fraction for decompression23 calculation purposes� 18/45

Page 50 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

SAC Display m min GTR Display The Surface Air Consumption (SAC) display The Gas Time Remaining display shows the time, in shows the average rate of pressure T1change SAC T1 GTRT1 minutes, that you could stay at the current depth until P over the last two minutes, normalized to S PSI a direct ascent to the surface at a speed of 33 feet/ as if at 1 ATA pressure� Depending1753 on the I 16min 45 min (10 m/min) would result in surfacing with the current units setting, SAC is either displayedm SURFACE min m min mreserve mingas pressurem remaining�min in PSI/minute or Bar/minute� T1 SAC SM GTRT1 P T1 SACT1T1 GTRSACT1T1T1 GTRSACT1T1 GTRT1 SAC can be displayed for a single tank, or BAR P P P S S PSI S PSI S PSI for a sidemount configuration of1753 two tanks I 1.1 min 45 I min I min I min of identical volume� 1753 175316 17531645 165 2 SURFACE SURFACE SURFACE SURFACE The Value is displayed in yellow when less than or Note that SAC in pressure per minute equal to 5 minutes� The value is displayed in red when is NOT transferable between tanks of less than or equal to 2 minutes� different sizes� GTR can only be based on a single tank or when sidemount is selected, with 2 tanks of identical The title indicates which transmitter is being used volume� for the SAC calculations in a dark gray font� “SM” indicates that Sidemount SAC is selected� The title indicates which transmitter is being used for the GTR calculations in a dark gray font� “SM” The tank(s) included in the SAC calculation are indicates that Sidemount GTR is selected� selected in the AI Setup menu (page 74)� When on the surface, the GTR displays “---”� GTR is During the first few minutes of a dive not shown when decompression stops are needed, the SAC value is not available, while the and will display “deco”. initial data is being collected for averaging SAC T1 calculations� The SAC display will show wait SAC data from the first 30 seconds of each dive is “wait” during this time� discarded� It then takes an additional few minutes to calculate the average SAC� Therefore, for the first few minutes of each dive, the GTR will display “wait”, until On surface, SAC is average from last enough data has been collected to begin making GTR dive predictions� The average SAC from your last dive is shown when on the surface� When a dive ends, you may More information on how GTR is calculated can be notice the SAC value suddenly changes� This is found in the GTR calculations section on page 51� because the SAC display changes from showing the SAC over the last two minutes (when in GTR T1 GTR T1 At start of dive, No GTR dive mode) to showing the average SAC for the wait for data to on surface wait whole dive� --- stabilize

Page 51 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

RTR Display (Sidemountm Only)min 8.11. Sidemount AI The Redundant Time Remaining (RTR) display indicates how muchT1 gas timeSAC T1 RTRT1 The Teric offers some features that make gas tracking P remains if calculated only usingS the PSI more convenient while sidemount diving� These pressure of the sidemount1753 tankI with16 lessmin 17 include: pressure (i�e� all gas in the higher pressure AI tank was lost)� SURFACE - Sidemount tank switch notifications TX|T1 T2 All of the same rules apply to RTR as they do to GTR - Sidemount SAC calculations and it is calculated in exactly the same way� - Sidemount GTR and RTR GTR/SAC SM:T1+T2 The title indicates the tank that is currently being All sidemount features are SM Switch used for the RTR calculation in dark grey� enabled in the AI setup menu by 21 BAR setting the GTR/SAC option to the desired SM combination� Mini Combination Displays A miniature combination display packs more Use Identical Tanks For Sidemount information into a smaller space, at the expense of font size� Sidemount features were designed assuming the sidemount tanks are of identical volume. This removes the need to enter GTR, RTR, and SAC will not have information available tank volumes into the computer, simplifying the user interface about what tank they are referencing due to space and reducing the chances of input errors. constraint� Do not use sidemount AI features with tanks of diff ering AI Mini AI Mini volumes. Setting Display Setting Display m min m min Sidemount Tank Switch Notifications T1 T2 T1 T2 Tx & GTR T1 120 T1 & T2 T1 120 When the sidemount feature 1753 GTR 45 14221753 T2 111 1422 is enabled switch notifications .6 m min m min will appear as a green box m SURFACE SURFACE around the tank you should be 33 T1 T1 NDL TTS Tx & SAC T1 120 T2T3 & T4 T3 197 T2 breathing from� This provides a SAC1.1 T4 188 subtle reminder to switch tanks 5 4 1753m min 14221753m min 1422 when the difference between T1 GTR 35 T2 SURFACE SURFACE tank pressures rises above the 120 RTR 15 145 GTRT1 & GTR 45 T2GTR T1& GTR 45 T2 SM Switch setting� SAC RTR :19 SAC1.1 RTR 19 23 120 98120 98 The switch notification setting 21/00 SURFACE SURFACE has a range of 7 bar - 69 bar or 100 PSI - 999 PSI�

Page 52 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

Sidemount SAC and GTR 8.12. Using Multiple Transmitters Sidemount SAC and GTR are calculated the same way as single tank SAC and GTR except the tank pressures When using multiple transmitters, best reception are pooled prior to each calculation. Essentially the reliability will be attained by using transmitters two tanks are treated as one large tank. with different transmission intervals or by using transmitters with active collision avoidance such as Sidemount SAC and GTR calculations are dependent the Shearwater Swift Transmitter. on the assumption that both sidemount tanks are of identical volume. When two transmitters of the same transmission interval are used, the potential exists for their Note that SAC rate is not transferable between tanks communication timing to become synchronized. of differing volumes. You must convert SAC to RMV When this occurs, data dropouts may result and could for comparing gas consumption across different tank last up to 20 minutes or more. configurations. Legacy Shearwater transmitters of different For the purposes of RMV calculations using colors have different transmit timing. This reduces sidemount SAC, follow the same procedure outlined communication collisions that could potentially cause for a single tank in the SAC calculations section on a loss of connection. page 54, but add all of the relevant tank attributes together as if you were using a single large tank. When using more than two transmitters, Shearwater recommends using the Swift transmitter which

Total volume = VolumeTank 1 + VolumeTank 2 actively ‘listens’ for other transmitters in the vicinity and dynamically alters transmit timing to avoid Total rated pressure = Rated presure + Rated pressure Tank 1 Tank 2 interference.

There is no defined upper limit to the number of Swift transmitters that can be run concurrently. For more details, see the Swift Operating Instructions Manual.

Using Multiple Transmitters With The Same Transmission Interval May Result in Lost Comms When using more than one transmitter, use transmitters with adaptive collision avoidance or legacy transmitters of different colors to prevent interference (see above).

Page 53 Doc. 15001-SI-RevE (2021-07-26) Operating Instructions

8.13. SAC calculations SAC Formula The SAC is calculated as follows: Surface Air Consumption (SAC) is the rate of change ( ) ( ) of tank pressure, normalized as if at 1 atmosphere of 1 2 ( ) = [ ] [ ] 2 1 = [ ] = pressure. The units are either PSI/minute or Bar/minute. − , , = [ ] − ⁄ The time samples are taken 2 minutes apart, and Pamb,ATA The Teric calculates SAC averaged over the last two is the average ambient pressure (i.e. depth) over this minutes. The data from the first 30 seconds of a dive time frame. are discarded to ignore the extra gas that is typically used during this time (inflating BCD, wing, or dry suit). Since the Teric displays and logs SAC, the formula for calculating RMV from SAC is useful. Knowing your SAC vs RMV RMV can help with planning dives using tanks of Since SAC is simply based on rate of tank pressure various sizes. change, the calculations do not need to know the tank size. However, this means that the SAC is NOT Calculating RMV from SAC - Imperial units transferable to tanks of a different size. In the imperial system, tank sizes are described using two values; capacity in Cuft at a rated pressure in PSI. Contrast this to respiratory minute volume (RMV) which is the volume of gas your lungs experience For example, a common tank size is 80 Cuft at 3000 per minute, measured in Cuft/min or L/min. The PSI. RMV describes your personal breathing rate, and is therefore independent of tank size. To convert SAC in [PSI/minute] to RMV in [Cuft/ minute], calculate how many Cuft are stored per PSI, Why SAC instead of RMV? then multiply this by the SAC to get RMV. Since RMV has the desirable property of being transferable between tanks of different sizes, it For example, a SAC of 23 PSI/min with an 80 Cuft seems to be the better choice on which to base GTR 3000 PSI tank would be an RMV of (23 x (80/3000)) calculations. However, the main drawback of using = 0.61 Cuft/min. RMV is that it requires setting up tank size correctly for each tank. Such setup is easy to forget and is also easy Calculating RMV from SAC - Metric units to setup incorrectly. In the metric system, tank sizes are described using a single number, the tank’s physical size in liters [L]. SAC has the great property of not requiring any setup, This is how much gas could be stored at a pressure of making it the simplest and most reliable choice. The 1 Bar, so effectively the units of tank size are [L/Bar]. drawback is that it is not transferable between tanks of different sizes. This makes converting SAC to RMV easy. When using metric units, simply multiply the SAC by tank size.

For example, a SAC of 2.1 Bar/min with a 10 L tank would be an RMV of (2.1 x 10) = 21 L/min.

Page 54 Doc. 15001-SI-RevE (2021-07-26) Operating Instructions

8.14. GTR calculations is not a good fit for all technical diving, but the GTR function becomes increasingly complex to manage and Gas Time Remaining (GTR) is the time in minutes that understand when multiple gases are used. can be spent at the current depth until a direct ascent to the surface at a rate of 10 m/min (33 feet/min) would Overall, the required complexity of menus and setup result in surfacing with the reserve pressure. This is burden on the user would result in a system prone to calculated using the current SAC value. mistakes and accidental misuse, and not fitting with Shearwater’s design philosophies. Safety stops and decompression stops are not considered by the GTR calculations. Gas management is an incredibly important and also complex activity, especially for technical To calculate GTR, start with the known tank pressure, diving. Education, training, and planning are critical . The remaining gas pressure, , is determined for proper gas management for technical dives. Ptank Premaining by subtracting off the reserve pressure and the pressure Shearwater feels that a convenience feature such as used for the ascent. GTR is not a good application of technology in this case, as its complexity and potential for misuse would outweigh its utility. Premaining = Ptank - Preserve - Pascent , all tank pressures in [PSI] or [Bar]

Knowing , divide this by the SAC adjusted to the No compensation for ideal gas law deviations Premaining current ambient pressure to get GTR in minutes. Note that all SAC and GTR calculations assume that the ideal gas law is valid. This is a good approximation

GTR = Premaining / (SAC x Pamb,ATA) up to about 207 Bar (3000 PSI). Above this pressure, the change in gas compressibility as pressure Why aren’t safety stops included? increases becomes a noticeable factor. This is mainly Safety stops aren’t included to simplify the meaning of an issue for European divers using 300 Bar cylinders. GTR, and make it consistent across operating modes The end result is early in the dive, when pressures are that do not include safety stops. above 207 Bar/3000 PSI, the SAC is over-estimated, resulting in under-estimation of GTR (although this Managing enough gas for a safety stop is quite simple, is the good way to err, as it is more conservative). especially since they require a relatively small amount of As the dive progresses and pressure drops, this gas. For example, consider if your SAC was 1.4 Bar/min problem rectifies itself and the numbers become more (20 PSI/min). At a depth of 4.5m/15ft, the pressure is accurate. 1.45 ATA. So a 3 minute safety stop would use 1.4 x 1.45 x 3 = 6.1 Bar (87 PSI) of gas. This small amount of gas is easy to factor into the reserve pressure setting.

Why is GTR limited to no deco? Currently, Shearwater does not believe that GTR is the proper tool for decompression dives, especially those involving multiple gases. This isn’t to say AI in general

Page 55 Doc. 15001-SI-RevE (2021-07-26) Operating Instructions

9. Watch Mode 9.2. Watch Tools

In Watch Mode, the Teric’s screen will always remain on All of the basic watch for ease of use� features can be found in the Watch Tools menu� The Teric can be configured to automatically turn off to Dive preserve battery either if it detects no motion, or if it The watch tools can be detects no button presses� Watch Tools accessed from the main menu in Watch Mode� Alerts For more information about timeout options, see Timeouts on page 78� This section covers the details of the watch tools� AI and compass features are never on in watch mode� There is no need Alarms to turn them off to preserve battery Two independent alarms can be set� when using the Teric as a watch� Each alarm can be 9.1. Date And Time Alarm 1 scheduled to go off: Alarm 1 • Once On the Teric, the date, time and other watch settings On • Everyday can be set in the Settings > Watch menu� Time • Weekdays 12:17 PM • Weekends Days Settings Watch Everyday Each alarm has 4 notification options: Time Format Display • Beeping 12-hour • Vibrating Time Watch • Beeping & Vibrating 11:59 PM • Visual Only General Date 2021-JUN-21 Alarms do not share

S L notification settings with N

O dive mode alerts C

21 O

E PM

C 1217 Details about Watch settings can be found in the When an alarm is triggered, Settings Menu Reference section on page � Alarm 1 press either left button to cancel the alarm or either right button to snooze the Editing time resets stopwatch and timers� Alarms are alarm� not affected� Snooze duration can be set in the Alarms Menu�

Page 56 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

Timer Stopwatch The Teric’s timer can be edited to count down up to The Stopwatch is universal throughout the Teric� A 10 hours� stopwatch started in Watch Mode will continue in any diving mode until it is stopped� Press EDIT (bottom left button) to modify the countdown length, or the notification type�

S S T STOPWATCH T T STOPWATCH T O A E E S S R P E E T S

T T R R

Timer

E A

S R

T h mm ss

7:33 7:33

0:10:00 T

I 10:00

Beep+Vib ✘

E 0:10:00

While running, the word When stopped, the word “Stopwatch” appears in Green� “Stopwatch” appears in Red� Timer Before Start Edit Timer The stopwatch appears on the home screen by default The countdown time and notification setting for the in gauge and Freedive Mode, but any dive mode can timer are shown in gray at the bottom of the timer be customized to include it� screen� .9 m .0 32

S FD m DECO TTS T T Deep E Timer Timer 0 O D S P I MAX STOPWATCH E S S 6m 6min 21

R S M

I I

m MAX STOPWATCH

M S

32.6 4:57

DONE I

8:55

D SURFACE 38.2 m 2:46

0:10:00

+ 0:10:00+01

: 19

23 19:16 18/45 Stopwatch appears by default Stopwatch can be added to Timer Running Timer DONE in freediving and gauge mode� home screen in any mode� Press the “+1” to add 1 minute to the countdown� The stopwatch has a 10 millisecond resolution and will run for up to 24 hours in the background, even if the Press any button to Dismiss the DONE Notification� Teric is “turned off”�

The timer will run in the background and the DONE When non-zero, the stopwatch can be reset� If running notification will sound even if the watch is “turned when reset, it continues running, counting up again off”� from 0� If stopped when reset, then it is set to 0 and remains stopped�

Page 57 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

Flashlight The flashlight simply turns the Teric screen on full brightness to provide an emergency source of light. It Analog is only useful in the darkest of rooms or caves. N N N

OC .6 .6 OC .6 Watch Faces 125 ft 23 OC 125 ft 23 125 ft 23 Three watch faces are available for the Teric: Analog, TTS DECO TTS DECO TTS DECO Digital and Orbits. 14 20ft 2min 14 20ft 2min 14 20ft 2min O2/He T1 O2/He T1 O2/He T1 P P P S S S 21/00 1850 I 21/00 1850 I 21/0007 1850 I The active watch face can be selected in the Watch : :19 MON: Tools menu, or by default, it can be toggled by the ! 23 19 ! 23 ! 23 19 function button in Watch Mode.

Each watch face can be displayed with various amounts of information. Digital

N N Information levels can be quickly toggled by pressing OC .6 .6 the Info button. 125 ft 23 BATTERYOC 125 ftDATE23 TTS DECO TTS93% MonDECO 28 14 20ft 31 2min 31 14 20ft 31 2min O2/He T1 : AM P : AM O2/He : T1 S AM P I S 21/00 1850 MON-28 21/00SURFACE 1850mbar I 9.3. Watch Face Colors : 9h 04m 1013 ! 23 19 ! 23:19 15 different watch face colors are available allowing over 100 possible watch face appearances.

Watch face colors can be selected in Settings > Display Orbits > Colors.

Settings Display 10 10 10 10 10 10 Temp Units Compass �F MON-28 Display|ft/F Colors 35 35 Watch Brightness

Over 100 possible watch face appearances can be created by selecting the watch face, information level, and watch face color.

Page 58 Doc. 15001-SI-RevE (2021-07-26) Operating Instructions

10. Menus Menu items by mode:

Menus perform actions and allow settings to be WATCH OC REC OC TEC changed� Dive Watch Watch Watch Tools Select Gas Select Gas All menus show button hints allowing easy navigation� Alerts Dive Tools Dive Tools If no buttons are pushed for 1 minute, the menu Log Edit Gases Edit Gases system will time-out, returning to the main screen� Bluetooth Alerts Alerts Anything that had been previously saved will be Settings (s) Log Log retained� Anything that was in the middle of editing will be discarded� Off Bluetooth Bluetooth Home Settings Settings Off Off Adaptive Menus Home Home Only menus necessary for the current mode are shown� This keeps operation simple, prevents mistakes, and reduces buttons CC/BO GAUGE FREEDIVE presses� Watch Watch Watch CC >> BO Dive Tools Change FD Set 10.1. Main Menu SP 0�7 >> 1�3 Alerts Edit FD Set Dive Select Gas Log Dive Tools All Teric menus can be accessed Dive Tools Bluetooth Alerts from the main menu which can be brought up on any home screen by Watch EditTools gases Settings Log pressing the menu button� Set Points Off Bluetooth Alerts Home Settings Main menu items differ Log Off substantially by mode, as well as at the surface versus on a dive� The Bluetooth Home most commonly used menu items Settings are placed at the top of the main Off menu to reduce button presses� Home Main menu items are listed to the right by mode in the order they appear� In the following section each item will be covered in detail�

Note: Items in blue cells are only available at the surface�

Page 59 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

Dive / Watch Switch to CC/BO OCBOCC Toggles between the Depending on the current computer selected Dive Mode and setting, this selection will show as .4 Watch Mode� either “CC >> BO” or “BO >> CC”� CC 30 m DECO TTS Only available at the Selecting this menu item will toggle min 30CCm >>2 BO 98 Dive surface� the Teric to the displayed mode for O2/He decompression calculations� When SP 1.3 >> 0.7 Watch Tools 10/50 1.3 switching to Bail Out while diving, :33 the most appropriate Bail Out gas 42 will become the breathing gas for calculations�

Watch Tools At this point, the diver may want to switch to a different gas, but since the diver may have other Only available in Watch Mode� things to deal with, the computer will make a “best All of the basic watch features including: guess” of which gas the diver would choose� • Alarms • Timer • Stopwatch Switch Set point (SP 0.7 >> 1.3) OCBOCC • Flashlight CC mode calculates decompression • Watch Face Selection for an unconnected rebreather� Set .4 points are switched in the CC 30 m See Watch Tools details on page 56� computer to approximate the CCDECO>> BO TTS rebreather set point� 30SPm 21.3min >> 980.7 Dive Tools O2/He During a dive the Switch Set 10/50Select Gas1.3 Available in all dive modes both at the surface and point menu item will be the first :33 during a dive� item displayed in the main menu, 42 Dive tools include since the “Watch” displays are • Compass disabled when diving� • Stopwatch • Tag Log Pressing SELECT when this menu item is displayed • Dive Plan changes the PPO2 set point from the low set point to • NDL Plan the high set point or vice-versa� To redefine the PPO2 • Reset Average Depth value of a set point, use Main Menu > Set points� • Test Alerts The switch set point menu item performs a manual Not all tools are available in every mode� For example switching of the PPO2 set point� In the Set Points the dive planners are not available in Freedive Mode� menu, the Teric can be setup to automatically perform set point switches at programmable depths� However, See Dive Tools details on page 40� the Switch set point menu item is always available in CC mode to provide manual control�

Page 60 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

Select Gas Radio Station Gases

This menu item allows you to pick a gas from the gases you have CC .4 created� The selected gas will be 30 m used either as the breathing gas in SPDECO1.3 >> TTS0.7 open circuit mode, or the diluent in 30m S2electmin Gas98 closed circuit mode� O2/He 10/50Dive Tools1.3 Gases are always sorted from most :33 to least oxygen content� 42

Scroll up and down to select the desired diluent/gas, then press 21m the SELECT button to select that Select Gas diluent/gas� 50/00 ACT 21/00 An ‘ACT’ symbol will appear next to 14/55 the currently active gas� The Teric CC/BO system maintains two sets of gases - one for open circuit and one for closed circuit� A gas that is off will be shown in Back The way they operate is very similar to the way car Magenta, but can still be selected� 42:44 It will be turned on automatically if radios work with AM and FM stations� it is selected� When you are listening to an FM station and you push Gases that are programmed but turned off are not a station selection button, it will take you to another used in decompression calculations� FM station� If you add a new station, it will be an FM station�

Similarly, if you are in the AM mode, adding or deleting a station would add or delete an AM station� Gases will not turn off automatically With radio station gases, when you are in open Selecting a new gas will turn that gas on if it is off , but gases circuit, adding, deleting or selecting a gas will refer will never turn off automatically. to an open circuit gas� Just like the FM stations are selected when your radio is in FM mode, the closed It is important to turn off all gases you are not carrying and circuit gases are available in the closed circuit mode� plan to use on the dive in the Edit Gas menu to ensure you When you switch to open circuit, the gases available receive accurate decompression information. will be open circuit gases�

Page 61 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

Edit Gases Set Points OCBOCC The Edit Gases function allows The Set Points menu is available in CC and BO mode you to set up 5 gases for each .4 on the surface and while diving� This menu allows you of the 4 SCUBA modes: 30 m to define the high and low set point� • OC Rec DECODive ToolsTTS • OC Tec 30m E2ditmin Gases98 Values from 0�4 to 1�5 are permitted� • CC/BO O2/He • Bailout 10/50Alerts 1.3 You must be in the mode you :33 .4 .4 42 m m plan to use to edit gases for that 30 30 mode� DECOEdit GasesTTS EDECOdit Low SPTTS 0m 30m S2etmin Points98 30Emdit 2 minHigh SP98 For each gas, you can turn Edit Gases O2/He O2/He the gas on and off and select ON 99/00 10/50Alerts 1.3 10/50Back 1.3 the percentage of oxygen and ON 50/00 : : helium in the gas� The remainder ACT 18/45 33 33 is assumed to be nitrogen� 42 42 OFF 00/00 OFF In OC Rec mode, only oxygen 00/00 Back fraction can be edited� Trimix is 0:00 unavailable in OC Rec mode� Change Freedive (FD) Set OCBOCCFD Scroll through the gas list using the arrow keys and Use this menu item to change between freedive sets� select the gas you wish to edit� The gas contents are edited one digit at a time� The yellow box shows the digit being edited� .0 .0 0 m 0 m Note: The “Act” denotes the active gas. You cannot DECOWatch TTS ChangeDECO FD SetTTS delete the active gas. If you try, it will generate an 1:Deep error. You can edit it, but cannot set both the O2 and 30Cmhange 2min FD Set98 30m 2min 98 HE to 00. O2/He O2/He2:Pool Edit FD Set 10/50 1.3 10/503:Rep.1.3 ✘ SURFACE SURFACE Turn off gases you are not carrying 14h 13m 14h 13m The decompression algorithm assumes that the diver is carrying and plans to use every gas that is currently turned on� Leaving gases that are not expected to be used turned on will result in inaccurate time to surface, decompression stop and decompression time information being displayed�

Page 62 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

Edit Freedive (FD) Set OCBOCCFD Regularly test your alerts with the Test Alert Use this menu item to edit the current freedive set� tool described on page 42 to ensure they are working and you can hear/feel them through your exposure suit� .4 Set 1 30 m Name .0 CDECOhange FD SetTTS Deep Freediving alert types:

Info - Appears in blue� m min FD Deep ft 30 2 98 Edit FD Set 0 C Alerts O2/He L Dive Tools INFOMAX STOPWATCHE 10/50 1.3 A

Settings R

103.6Notify Time.04:57

: 33

SURFACE

42 WarningFD - Appears inft yellow�

Deep

MAX STOPWATCH

Info

A freedive set is a collection of settings customized

103.6Warn19:16 Time4:57

for a specific type of freediving� .0

SURFACE

Danger - Appears in Redft

Deep

Name

MAX

Allows the user to rename the freediving STOPWATCH

Info

set� A FD Set Name can be up to four ft R

FD 19:16ft

characters in length and appears next to Deep 103.6Notify Time4:57

the Freediving mode indicator when at SURFACE

Freediving Trigger Alert Type

the surface�

MAX

STOPWATCH

Alert Condition

Notify 1 Depth Info

Default freediving sets are: ft 19:16 • Deep 103.6 4:57 Notify 2 Depth Info • Pool Warn Depth Depth Caution • Repetitive (Rep�) SURFACE Max Depth� Depth Danger Asc� Notify Depth Info Freediving Alerts The freediving alert settings for the current Freedive Notify Time Time Info Set can be defined here� Warn Time Time Caution Max Time Time Danger Freediving alerts are triggered by depth or time� 19:16 Surf Time 1 Time Info Surf Time 2 Time Info All Freediving alerts appear on the screen for 4 Depth Repeat Depth Info seconds or until they are cleared� Additionally each alert can have a custom auditory and vibration Time Repeat Time Info notification assigned to them� Surf Repeat Time Info

Page 63 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

Set Settings Alerts

Water Type Available in all modes both at Salt or fresh water� This setting affects depth readings the surface and while diving� .4 because salt water is more dense� m Use this menu to set how the 30 DECODive ToolsTTS Start Depth Teric will notify the user of an m min The depth threshold for beginning a dive� alert� 30 A2lerts 98 O2/He Log End Depth There are 4 modes: 10/50 1.3 The depth threshold for ending a dive� • Silent Mode (no alerts) : • Beep Only 42 33 Start Delay • Vibrate Only The amount of time after crossing the start depth • Beep and Vibrate threshold before a dive is begun� Once a dive does begin, the length of the delay is added to the dive The current alert notification time to maintain accuracy� setting icon is shown next to .0 “Alerts” in the main menu� OC Tec 0 m End Delay OCFDADECOlerts ftTTS This setting is an override that The amount of time after crossing the end depth NDLft Beepmin OnlyTTS applies to alerts in every dive 20 2 14 threshold before a dive ends� Once a dive ends, the O2/HeVib. OnlyT1 mode� -- -- P length of the delay is subtracted from the dive time to Beep + Vib. S 21/00SURFACE1850✘I maintain accuracy� SURFACE The way dive events and warnings are communicated 2h 34m can be set up independently for each dive mode� See the Dive Settings “Alerts” section on page 69 to customize these alerts�

Note: timers, and alarms have their own notification settings for each individual timer/alarm and are not impacted by this setting�

Page 64 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

Log Bluetooth The on-board log can store about 400 hours of dive logs at the default 10 second log rate of the computer Bluetooth is used for both firmware uploading and in OC Rec mode� dive log downloading�

LOG Scroll up and down on the Use this option to initialize Bluetooth on your dive first page of the log to see computer� a list of all of your dives� Log Options #35 MAY-25 Select a dive (Top right .0 28m 25min button) to pan through 0 m #34 MAY-22 dive detail screens� 43m 56min DECOLog TTS Scroll up and down inside 30mB luetooth2min 98 the dive detail screens to O2/He Wait Connect Settings change the dive� 10/50 1.3 2 : 50 DEPTH SURFACE Log contents: 14h 13m #35 MAY-25 • Dive Number 14:58 • Dive Date and Time • Max Depth • Average Depth • Dive Time Off • Temperature Graph MAX28m 25min The “Off” item puts the computer to sleep� While AV 14m • Starting and ending sleeping, the screen is blank, but the tissue contents tank pressures are maintained for repetitive diving� • SAC • Dive Mode The “Off” menu item will not appear during a dive in • Surface interval any mode� It will also not appear after a dive until the • Surface pressure dive End Dive Delay Time has expired or the dive has • Deco Settings been ended manually to allow for a continuation dive� • Start & end CNS End Dive Log Options The “End Dive” menu item allows you to manually end The Log options menu allows you to set the next log the dive before the End Dive Delay has expire� This number to match your lifetime dive count� is useful if you have set a particularly long End Dive Delay and want to access the surface only features of From here you can also delete and restore deleted the Teric quickly following a dive� logs�

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11. Settings Reference Dive Mode There are 5 available dive The Settings menu can be modes: Dive Mode accessed from the Teric’s main .0 OC Rec menu when at the surface� 0 m • OC Tec OC Tec DECOBluetoothTTS • OC Rec (default) CC/BO • CC/BO Gauge 30mS ettings2min 98 Freedive ✘ O2/He • Gauge Off (e�g� bottom timer mode) 4 4 10/50 1.3 • Freedive SURFACE 4 14h 13m When changing to or from Gauge or Freedive Mode, the decompression tissues are cleared� This is because 11.1. Dive Settings Menu when in these modes the Teric does not know what gas you are breathing, and therefore cannot track The first menu item within inert gas loading� Plan repetitive dives accordingly� the settings menu is the Dive Settings Settings Menu� This menu item For more information on which mode to choose, see also conveniently shows the Dive Mode Differentiation on page 10� current dive mode in gray� Dive|OC Rec Layout All of the settings in the Dive The Layout menu item in the dive settings menu is Settings Menu are isolated to the Deco|40/85 Dive Mode in which they were used to select between the 2 available layouts: Big & set� Standard�

So, if you customize your layout, Dive home screen, and function button for OC Rec, then switch to OC Dive Dive Mode Layout Tec, when you switch back, your OC Rec Dive Mode original OC Rec settings will be OC Rec Layout Standard preserved� Big Big Layout Big Home Screen ✘ Home Screen 4 44

Like all of the other settings in the dive settings menu, this option is isolated to the dive mode in which it was set�

See the Main Screen Layout section on page 11 for details about the different dive modes�

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Home screen The Standard layout allows customization of the entire first page of the Info row� This option is used to customize the Info row on the Home screen� Pick the number of elements you would like in the info row, then proceed to select which information you OC REC Dive Home Screen would like displayed in each position�

Layout OC TEC Big Home Screen .0 NDL TTS OC Tec m Home Screen 0 -- -- # Values: 3 DECO TTS FUNC Button Back T1 �+5 T2 --m -min -- Compass Reset 120 0 98 T1 �+5 T2 Back 120 0 98 Reset SURFACE The Big layout (default for OC Rec mode) allows 12h 34m for customization of the right info row slot only 18/45 because the left slot is taken by NDL which cannot be In CC/BO mode there is a separate Home screen permanently obscured� menu item for each CC and BO� This allows you to optimize your bailout screen layout in advance, Note that in OC Tec and CC/BO modes, there is no minimizing button pushes during an emergency� customization available in the Big layout because we feel TTS should not be permanently obscured while A complete list of Home Screen Customization decompression diving� options can be found on page 22� SELECT the right slot to bring up the list of options� Use the arrows to scroll through the available options� Press SELECT again to choose an option� Watch the video:

OC REC Home Screen Home Screen Configuration Choose Display .0 NDL OC Rec ft AI 0 Top-Right Disp OC Rec NDL TTS NDL T1 T1 Pressure B T2 Pressure A In OC Rec mode, the right Deco row slot of the ------120 R GTR standard layout can be customized like the Info row SAC SURFACE Home Screen� Reset 2h 34m All of the same customization options are available for 21% this location�

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FUNC Button In dive modes the FUNC button options are: The function button (top right button) can be customized in every mode to act as a shortcut to your FUNC Setting Description most commonly used tool� Toggles between high and Switch SP Use the FUNC Button menu item in dive settings to low set points� OCBOCC choose the function button shortcut� Changes dive mode to bail Switch > BO out� OCBOCC Dive Changes dive mode to Switch > CC OCBO closed circuit� CC FUNC Butt. BO Home OCBOCC OC Tec Switch SP Select Gas Opens the gas select menu CC FUNC Butt. Switch > BO OCBO OC Rec Switch > BO Select Gas Compass Compass Opens Compass pop-up BO FUNC Butt. Deco Plan ✘ Select Gas OCBOCC OC Tec 4 4 Deco Plan Opens Dive planner 4 OCBO OC Rec Opens the Stopwatch pop- Stopwatch up In CC/BO mode there is a separate function button shortcut for each CC and BO� This allows you to Tag Log Opens Tag Log pop-up optimize computer’s operation in advance, minimizing Quick return to home button pushes during an emergency� Home Screen screen Some options are only available in specific dive modes� Look for the corresponding mode icon Rst Av Depth Resets average depth indicating which mode each option is available in� No mode icons indicate the option is available in all dive No Action No shortcut assigned modes�

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Water Type Alerts Water type (salinity) affects how the measured These settings allow you to modify your notification pressure is converted to depth. Settings: settings for warnings and dive events independently.

• Fresh • EN13319 Dive Alerts • Salt Log Rate Warnings Density of freshwater and saltwater differ by about 10 s Vibrate 3%. Saltwater, being denser, will display a shallower Alerts Dive Events depth for the same measured pressure versus the Beep & Vib Fresh setting. PPO2 Limits Back The EN13319 value is between Fresh and Salt. It is from the European CE standard for dive computers, and is the Teric’s default value. Note this is different from the top-level alerts menu. End Dive delay Those settings override these settings. Sets the time to wait after surfacing before ending the current dive. Like other attributes in the Dive Settings Menu, these alert settings are specific to the dive mode in which This value can be set from 10 seconds to 10 minutes. they were set. Default is 10 seconds. There are 4 settings: This value can be set to a longer time if you want brief • Visual only surface intervals connected together into one dive. • Beep Some instructors use a longer end dive delay when • Vibrate teaching courses. Alternatively, a shorter time can be • Beep & Vibrate used to exit dive mode more quickly upon surfacing. For more information on the different types of alerts Log Rate see the Alerts section on page 23. Sets how often dive samples are added to the Teric’s For a list of alerts you might encounter see Warnings log. More samples will give a higher resolution dive and Information Displays on page 86. log at the expense of log memory. The Beeper setting changes the pitch of the Teric’s Default log rate in Freediving mode is 1 second. 10 beeper. The High Pitch option is louder, but a Low seconds in every other mode. Pitch setting is also available for those who have a difficult time hearing higher frequencies. Maximum log rate in Freedive Mode is 1/4 second. Maximum log rate in all other modes is 2 seconds.

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PPO2 Limits OC Deco PPO2 This section allows changing of PPO2 limits. All decompression predictions (Deco schedule and TTS) assume that the gas used for decompression at a given depth will be the gas with the highest PPO2 WARNING less than or equal to this value. (Default 1.61) Do not change these values unless you fully understand the effect. Suggested gas switches (when the current gas is displayed in yellow) are determined by this value. If you change this value, please be sure you understand All values are in absolute atmospheres [ATA] of its effect. pressure. (1 ATA = 1.013 Bar) For example, if lowered to 1.50, then a switch to Bottom gas vs deco gas assumptions oxygen (99/00) will not be assumed at 6m/20ft. When not in deco: The least oxygen rich mix that is turned on and all PPO2 of all deco gases display in yellow when within mixes with 40% O2 are assumed to be bottom gases. 0.03 of OC DECO PPO2. All other gases are assumed to be deco gases. For all OC deco gases, PPO2 and the active gas flash When in deco: red when PPO2 is more than 0.03 greater than OC Only the least oxygen rich mix is assumed to be a DECO PPO2. bottom gas. All other gases are assumed to be deco gases. MODs of deco gases are determined with this value. OC Low PPO2 CC Low PPO2 For all OC gases, PPO2 and the active gas display will PPO2 displays in flashing red when less than this flash red when the active gas is less than this value. value. (Default 0.18) (Default 0.40) OC MOD PPO2 CC High PPO2 This is the maximum allowable PPO2 during the PPO2 displays in flashing red when greater than this bottom phase of the dive - Maximum Operating value. Depth. (Default 1.4) (Default 1.60) For all OC bottom gases, PPO2 will turn yellow when Reset Limits within 0.03 of OC MOD PPO2. Resets all PPO2 limits for this dive mode back to defaults. Also for all OC bottom gases, PPO2 and the active gas display will flash red when PPO2 is more than Note: In both OC and CC mode, a “Low PPO2” or 0.03 greater than OC MOD PPO2. “High PPO2” alert is displayed when the limits are violated for more than 30 seconds. MODs of bottom gases are determined with this value.

Note: BO Mode never uses OC MOD PPO2

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11.2. Deco Menu A custom GF option is also available in every dive mode� The Deco Settings Menu provides options for adjusting Settings When Custom is selected, Deco the decompression algorithm� fields for editing GF Low and GF High will appear in the GF Conserv. Dive|OC Rec Shown to the right of this Deco Menu� Med 40/85 item are the currently Deco|40/85 GF Low selected GF factors� OC Tec and CC/BO modes 40 have a custom default of Like the Dive Settings Menu, Gases 30/70� GF High any settings changed in this 85 menu will only apply to the Dive Mode you are currently in� For a more detailed explanation of the GF algorithm and the meaning of GF Low and GF High, please refer Deco Model Deco to Erik Baker’s excellent articles: Clearing Up The This will just show Confusion About “Deep Stops” and Understanding Deco Model ZHL16C+GF indicating that ZHL16C+GF M-values� The articles are readily available on the web� the Bühlmann ZHL-16 with gradient factors model is GF Conserv. Also see the Decompression and Gradient Factors being used� Med 40/85 section on page 27� Last Stop GF Conserv. 3 m Last Stop 3 preset conservatism levels Use this setting to identify where you plan to do your are available� In order of last decompression stop� The choices are 3m/10ft and increasing conservatism: 6m/20ft�

• Low (45/95) This setting makes TTS predictions more accurate by • Med (40/85) calculating according to planned last stop depth� It • High (35/75) GF Conserv. does not affect real time decompression calculations�

Medium conservatism is the Low 45/95 Rate of decompression is related to the partial default setting for OC Rec Med 40/85 pressure of inspired inert gas� If breathing a high mode� High 35/75 fraction of inert gas, the last stop depth may make a Custom ✘ significant difference to required decompression time� 4 4 If breathing pure O2, last stop will depth make no 4 difference as the fraction of inspired inert gas is zero� This setting has no impact on safety stops� These are governed by the logic described in the Safety Stops section on page 25�

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Safety Stops OC Rec 11.3. Gases The Safety Stop setting is Deco Settings only present in OC Rec Mode. The Teric supports 5 Last Stop programmable gases in OC It can be set to the following 3 m Deco|30/70 values: Rec, OC Tec, CC, and BO dive Safety Stop modes. Gases • Off Adapt • 3 minutes This setting is the same as AI|T1 • 4 minutes Back the Edit Gases item found • 5 minutes in the main menu, but is • Adapt conveniently located along • Count Up with the other dive settings.

When using the Adapt setting, a 3 minute safety stop For a description of how to will be used, unless the dive exceeds 30m (100ft) set each gas, please see the Edit Gases or the NDL falls below 5 minutes, in which case a 5 Edit Gases section on page minute safety stop is used. 62. ON 99/00 ON 50/00 Read more about Safety Stops on page 25. In CC/BO mode, both the ACT CC diluent and BO open 18/45 circuit gas lists are directly OFF 00/00 Clear Counter OCBOCC OC Tec Deco accessible, eliminating the OFF 00/00 The Clear Counter setting is need to toggle between the Back only available in OC Tec and Last Stop two operating modes to CC/BO Dive Modes. 3 m check gases from the Edit Clear Counter Gases option in the main By default, the clear counter Count Up menu. Settings will count up from zero once decompression obligation Back Note that OC Tec mode and has been cleared in OC Tec BO mode share the same gas Deco|30/70 and CC/BO modes. It can be list. Editing one will edit the turned off here. other. CC Gases

Read more about Decompression Stops on page BO Gases 26

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Example: 11.4. Set Points OCBOCC Settings This menu item is only Up: 0.7 > 1.3 Auto Up Depth = 21m Down: 1.3 > 0.7 Auto Down Depth = 5m available in CC/BO mode BO Gases The dive starts at the 0.7 set point. As you descend High & Low Set points Set Points past 21 m, the set point switches “up” to 1.3. Like the Set Points selection in the main menu, this menu AI|Off You finish your bottom time, then begin ascending. allows you to edit your High When you ascend above 5m, it switches “down” and Low set points. to 0.7.

When a switch is set to “Auto”, you can always Auto Set Point switch manually override the setting at any time during the dive. SP Auto Up and SP Auto Down are also available in this menu to set up automatic set point switching. The automatic switches only occur when crossing They can be configured to auto switch up only, down the specified depth. Say for example, the switch up only, both, or neither. depth is set to 15m. You start the dive on the low set point, then as you descend past 15m, the set point Use SP Auto Up to set whether the up switch occurs automatically switches up to high. If at 24m you automatically or manually. then manually switch back to the low set point, the set point will remain low. If you ascend shallower than 15m then re-descend deeper than 15m again, Set Points Set Points the automatic set point switch will occur again. The Teric enforces a 6m (20ft) gap between switch up Low Set Point SP Auto Up and switch down depths to prevent rapid automatic 0.7 On switching between set points for small depth changes. High Set Point Auto Up Depth The values 0.7 and 1.3 are shown as examples only. 1.3 021 m Other values for the low and high set point can be adjusted in the Set Points menu. SP Auto Up SP Auto Down On On

If SP Auto Up is set to “On”, use Auto Up Depth to set the depth at which the auto switch occurs.

The menu options are the same for the down set point switch.

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11.5. AI Set AI Mode to OFF when AI not in use

All AI settings must be configured on the surface Leaving AI enabled when not in use will negatively before a dive, since the settings menu is not impact battery life when in dive mode� When a paired accessible during a dive� transmitter is not communicating, the Teric goes into a higher power scan state� This increases power Settings AI consumption to about 25% higher than with AI off� Once communications are established, power drops to AI Mode about 10% higher than with AI off� Gases On Note, AI is never active in watch mode� There is no AI|Off Tx|T1 need to turn AI off when wearing the Teric as a watch�

Compass|On GTR/SAC Transmitter On/ Off T1 Turn off transmitters that are T1 not currently in use to save battery power� T1 AI Mode On Serial Number Setup AI Mode is used to easily enable or disable AI� Serial Every transmitter has a 003163 unique 6-digit serial number. AI Mode Setting Description This number is etched onto Rated the side of the transmitter� 207 BAR O ff AI sub-system is completely powered down and consumes no power� Enter the serial number to On AI is enabled� When on, AI increases power consumption by about 10%� pair the transmitter to T1� Note AI is never on in watch mode� This number only needs to be entered once� Like all settings, TX Setup it is stored in permanent memory� Transmitter settings The Transmitter setup are saved across all dive (TX) menu is used to set Tx modes� up individual transmitters� Currently active transmitters are shown next to TX in the T1|003163 top level AI menu� T2|002866 Up to 4 transmitters can be configured in this menu� T3|003227 Select a transmitter to modify its attributes�

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GTR/SAC Reserve Pressure Gas Time Remaining (GTR) is Enter the reserve pressure. T1 AI the time in minutes that can be spent at the current depth and The valid range is 28 to 137 Rated SAC rate until a direct ascent TX|T1 T2 bar (400 to 2000 PSI). 207 BAR Reserve to the surface at a rate of 10 GTR/SAC m/min (33 feet/min) would The reserve pressure setting 048 BAR SM:T1+T2 result in surfacing with the is used for: reserve pressure. The SAC rate SM Switch 1) Low pressure warnings Rename is averaged over the last two 21 BAR 2) Gas Time Remaining T1 minutes of diving for calculating (GTR) calculations GTR. A “Reserve Pressure” warning will be generated when GTR/SAC is only based on one tank, or on two tanks the tank pressure falls below this setting. in sidemount configuration. Note that for sidemount the tanks must be of identical volume for SAC to be A “Critical Pressure” warning will be generated when accurate. the tank pressure falls below the larger of 21 Bar (300 PSI) or half the reserve pressure. The GTR/SAC setting is also used for identifying sidemount mode. Selecting a SM option here will For example, if reserve pressure is set to 48 BAR, the enable tank switch notifications. critical warning will occur at 24 BAR (48/2). If the reserve pressure is set to 27 BAR, the critical warning will occur at 21 BAR. GTR/SAC Description Setting Rename Off GTR is disabled. SAC is also disabled. Allows the changing of the transmitters title as it appears on menus and screens throughout the dive T1, T2, T3, Selected Transmitter is used for GTR computer. Two characters can be customized per or T4 and SAC calculations. tank. The options are: SM:T1+T2 Combined SAC for selected (Or similar) transmitters will be calculated and First Character: T,S,B,O, or D. used for GTR. Sidemount switch notifications will be enabled. Second Character: 1,2,3, or 4. GTR and SAC displays are described in the AI Displays section on page 50.

Read more about Sidemount AI on page 52.

Read more about how SAC is calculated on page 54.

Read more about how GTR is calculated on page 55.

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11.6. Compass Declination Settings In most places, a compass does not point towards True North, but rather to Magnetic North� The Enable AI|T1 difference in angle between these two directions is called the magnetic declination (also called Disabling the compass magnetic variation), and varies around the world� The will prevent it from being Compass|On declination in your location can be found on maps or displayed in the info row� The by searching on-line� display refresh rate can be Display|m/�C reduced when the compass is This setting can be set from -99° to +99°� not displayed on the screen, so disabling the compass If you only need to match an uncompensated allows a slight power savings compass, or your navigation is all based on relative (about 10%)� directions, then this setting is not necessary and can Compass be left at 0°� The compass does not increase power consumption Enable when not on-screen� On Calibrate Outter Ring Calibration of the compass may be needed if the Outer Ring Hide accuracy drifts over time or if a permanent magnet or ferromagnetic metal (e�g� iron or nickel) object is Toggles the compass outer Declination mounted very close to the Teric� To be calibrated out, ring overlay� This can also be +0� such an object must be mounted with the Teric so toggled from the compass that it moves along with the Teric Display� pop-up� More details can be found in the compass pop-up Compare the Teric with a known good compass or section on page 40� fixed references to determine if calibration is needed� If comparing against fixed references, remember to Tips for a good compass calibration consider the local deviation between Magnetic North and True North (declination)� • Stay away from metal objects� For example, wrist watches, metal desks, boat decks, Calibration is typically not needed when traveling to desktop computers, etc� can all interfere with different locations� The adjustment needed then is the the Earth’s magnetic field� True North (declination)�

• Rotate to as many 3D positions as When calibrating, rotate the Teric smoothly through possible� Upside down, sideways, on edge, as many 3D twists and turns as possible in 15 etc� seconds� Keep metal and magnetic objects away during calibration� The calibration can also be reset • Compare with another compass (not back to the factory values� After calibration, it is a smart phone as those are terrible) to recommended to compare the compass accuracy with check your calibration� a known good compass or fixed references�

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11.7. Display Customize Colors Values, Titles, Units, Menu Depth and temperature units text, and Watch Face colors are displayed in the display Settings can all be customized from Customize settings menu option. this menu. Values Color Compass White Depth Units 15 color options are available. Configurable to Feet or Display|m/�C Titles Color Meters. Color Options: Cyan Watch Units Color • White Temp. Units Cyan • Red Configurable to ˚F or ˚C. • Green • Blue • Cyan Colors • Magenta Teric display colors can be Display • Yellow Customize changed for added contrast • Orange or visual appeal. Depth Units • Pink Menu Color Meters • Lime White Themes Temp. Units • Pastel Green Watch Color 4 preset color themes are �C • Grapefruit White available: • Ice Colors • Violet Back • Standard • Purple • Sunlight • Night • Predator

Themes apply presets that Colors quickly change the overall look of the Teric UI.

In addition to these preset Theme themes, the Teric’s color Sunlight scheme can be extensively customized. Choose the Customize “Standard” theme option to reset the colours to defaults.

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Brightness Timeouts Brightness Advanced options for reducing power consumption. This setting does the same Brightness thing as the LIGHT (top right) Dive Timeout Teric button Brightness Defines action upon dive mode timeout. High Options: Screen brightness can be set # Levels • to off to one of four fixed levels. 2 • to watch

Options: Include Off Dive Timeout Dim: Made specifically for No Defines timeout delay for dive mode. cave conditions. Options: Low: Second longest • 5 min battery life. • 10 min Med: Best mix of battery • 15 min life and readability. High: Easiest readability, Watch Timeout especially in bright sunlight. Defines criteria for watch timeout to off. Options: # Levels • No motion This setting defines how many brightness levels are • No button presses cycled through when pressing the LIGHT button. It also effects how many brightness levels are visible in Watch Timeout the Brightness menu setting above. Defines timeout delay for watch mode. Options: Include Off • 15 s This setting determines if OFF is available as an • 30 s option when the LIGHT button is pressed. • 1 min • 5 min The battery life of the Teric is dramatically improved • 10 min when “Off”. This is a convenient feature if you forget • 20 min your Teric charger at home and are being judicious with battery consumption.

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11.8. Watch Daylight Savings Simply adds one hour to the time without needing to Time Format change the timezone. There are two available Settings options for time format: FUNC Button • 12-hours Set the Function button shortcut for Watch Mode. • 24-hours Display|m/�C FUNC button options Time Watch The function button has different options that can be independently set for each mode. In Watch Mode, Time on the Teric is set here. General there are eight function button options. Date Date on the Teric is set here. FUNC Setting Description Cycles the watch face Watch Face Time Zone between Digital, Analog, (Default) Setting the time zone can make it easier to adjust the and Orbits. time while traveling. Consult the table below to find Turns on the flashlight the UTC time for the location nearest you. Flashlight function

UTC Time Zone Location UTC Time Zone Location Alarms Brings up the alarms menu +13:00 Tonga +3:00 Istanbul +12:00 Aukland +2:00 Cape Town Opens the Stopwatch pop- Stopwatch +11:00 Solomon Islands +1:00 Paris up +10:00 Sydney 0:00 London +9:00 Tokyo -1:00 Azores Timer Opens the timer pop-up +8:30 North Korea -3:00 Rio de Janeiro +8:00 China -4:00 Halifax +7:00 Bangkok -5:00 New York Turn Off Turns Teric Off +6:00 Dhaka -6:00 Mexico City +5:45 Nepal -7:00 Denver No Action No shortcut assigned +5:30 Mumbai -8:00 Los Angeles +5:00 Karachi -9:00 Anchorage +4:30 Kabul -10:00 French Polynesia +4:00 Seychelles -11:00 American Samoa +3:30 Tehran

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11.9. General Settings

User Info Watch Use this menu to change the General information presented on the Owner Info screen. Home Battery Quick Charge When enabled Quick charge charges the watch a little bit faster. However, not all USB ports supply sufficient current for quick charge.

Quick Charge is disabled by default. If you’ve enabled quick charge and you’re having problems charging your Teric, disabling quick charge may help.

Defaults This will reset all user changed options to factory settings and / or clear the tissues on the Teric. A reset to defaults cannot be reversed.

Note: This will not delete dive logs, or reset dive log numbers.

System Info The System Info section lists the computer’s serial number as well as other technical information you may be asked to provide to tech support for troubleshooting purposes.

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12. Firmware Update and Log 12.1. Shearwater Cloud Desktop Download Ensure you have the most recent version of It is important to keep the firmware on your dive Shearwater Cloud Desktop� You can get it computer up to date� In addition to new features and here� improvements, firmware updates address important bug fixes� Connect to Shearwater Cloud Desktop On your Teric, start Bluetooth by selecting the There are two ways to update the firmware on your Bluetooth menu item from the main menu� Teric: 1) With Shearwater Cloud Desktop 2) With Shearwater Cloud Mobile .0 0 m Please note that Teric does not support the original DECOLog TTS Shearwater desktop application� 30mB luetooth2min 98 O2/He Wait Connect 10/50Settings 1.3 2 : 50 SURFACE Upgrading the firmware resets 14h 13m decompression tissue loading� Plan repetitive dives accordingly� In Shearwater Cloud Desktop: 1� Click the connect icon to open the connect tab� During the update process, the 2� Scan for Dive Computer screen may flicker or go blank for a 3� Once you’ve connected the computer once, use few seconds the Teric tab to connect faster next time 1

Shearwater Cloud Desktop Connect Tab

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Once the Teric is connected, the Update Firmware connect tab will show a picture of Select “Update Firmware” from the connect tab� the dive computer� Shearwater Cloud Desktop will automatically select the latest available firmware� Download Dives Select “Download Dives” from the When prompted, select your language and confirm connect tab� the update�

A list of dives will be generated� The Teric screen will give percentile updates of and you can un-select any dive receiving the firmware, and then the Personal logs you don’t want to download, Computer will read “Firmware successfully sent to the then press OK� computer” on completion�

Shearwater Cloud Desktop Firmware updates can take up to 15 will transfer the dives to your minutes� computer�

Shearwater Cloud Desk- top Connect Tab

Select the dives you wish to download and press OK

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12.2. Shearwater Cloud Mobile Download Dives Select “Download Dives” Ensure you have the most recent version of Shearwater Cloud Mobile� A list of dives will be generated and you can un-select any dive Download it from Google Play or the Apple logs you don’t want to download, App Store� then press OK� Shearwater Cloud will transfer the Connect to Shearwater Cloud Mobile dives to your smart phone� On your Teric, start Bluetooth by selecting the Bluetooth menu item from the main menu�

.0 0 m Update Firmware DECO TTS Log Once the Teric is connected to Shearwater cloud 30mB luetooth2min 98 mobile, select “Update Firmware” from the connect O2/He Wait Connect 10/50Settings 1.3 2 : 50 tab� SURFACE 14h 13m Shearwater Cloud mobile will automatically select the latest available firmware�

When prompted, select your language and confirm On Shearwater cloud mobile: the update� 1� Press the connect icon at the bottom of the screen 2� Select your teric from the list of Bluetooth devices The Teric screen will give percentile updates of receiving the firmware, and then the mobile app will read “Firmware successfully sent to the computer” on completion�

Firmware updates can take up to 15 minutes�

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13. Teric Strap 14. Charging

The included Teric strap is a durable, stretchy silicone designed to grip a wet suit or dry suit without sliding The Shearwater Teric charges wirelessly when around� Various strap options are available� mounted on the included dock and on some third party wireless Qi complaint chargers�

For extra length, use the included extender strap�

The strap is fastened to the Teric via stainless steel watch lugs which can be easily removed and replaced with two standard 1�5mm hex screwdrivers (included)� The Teric screen rotates 90 degrees for easy viewing of the time when the Teric is mounted on the charger�

The screen will turn off after 20 seconds to preserve the long term health of the screen and battery, but pressing any button will wake up the Teric so the time can be viewed�

The SUN button will adjust the screen brightness and the OFF button will turn the screen off�

Dive Mode functions are not available while the Teric is charging� The Teric is compatible with most 22mm off the shelf straps for additional customizability�

DO NOT OVER TORQUE LUG SCREWS Once it feels tight, stop screwing� Over torquing can damage screw threads�

Additional lug screws are included in the box�

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Charger Positioning Charging time Wireless chargers quickly lose efficiency when The Teric can be charged with any USB wall power the transmission and receiver coils are not aligned adapter or with a computer� Charging time is properly or there is too large an air gap� approximately 1�5 hours with Quick Charge enabled, and 3-4 hours without�

Behavior on Dead battery Settings All settings are retained permanently� No loss of settings occurs if the battery dies�

Clock The clock (time and date) data will be lost if the Teric experiences a total loss of power� Correct positioning Incorrect positioning on charger - no gap on charger - air gap Once the battery is charged, you will need to update the Clock and Date in the Settings > Watch Menu� Ensure the Teric is flat against the charging dock for the fastest, most efficient charge� The Teric uses a highly accurate quartz crystal for time keeping� Expected drift is about 1 minute per If the Teric stops charging and the charger light month� If you notice drift, it is easily corrected in the begins to flash red, remove and replace the Teric and Settings > Watch menu� charging should resume� Decompression tissue loading Battery Care If the battery dies between repetitive dives the decompression tissue loading will be lost� Lithium-ion batteries, such as the one in the Teric, can be damaged if completely discharged� The Teric Plan repetitive diving accordingly� has internal protection which disconnects the battery before complete discharge occurs� However, a small When deco tissues are reset, the following are also amount of self-discharge still occurs, which can lead reset: to complete discharge and subsequently battery damage if stored for long periods without recharging� • Inert gas tissue loadings set to saturated with air at current atmospheric pressure To prevent damage to the battery please do the • CNS Oxygen Toxicity set to 0% following: • Surface Interval time set to 0 1) Fully charge the Teric prior to storage 2) Top up the Teric battery every 6 months

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15. Troubleshooting

Follow these guidelines to help solve problems with Display Meaning Action to take .0

the Teric�

FD Deep ft

0 C

L The PPO2 is below the Change your breathing WARNINGMAX STOPWATCHE

A limit set in the PPO2 gas to one safe for the

103.6LOW PPO24:57

limits menu� current depth.

SURFACE

15.1. Warnings and Information

Deep

0 L The PPO2 is above the Change your breathing

19:16 E Displays WARNINGMAX STOPWATCH

A limit set in the PPO2 gas to one safe for the R

103.6HIGH PPO24:57

limits menu� current depth.

SURFACE

The following table lists warnings and errors and

information alerts you may see, their meaning, and

Descend deeper than

FD Deep ft

steps to take to solve any problems� 19:16 0 C the currently displayed

L A required WARNINGMAX STOPWATCHE stop depth. Monitor for A decompression stop

R symptoms of DCS. Use

103.6MISSED STOP4:57

The highest priority notification is listed first� If multiple was violated�

extra conservatism for

SURFACE

alerts occur simultaneously, the error with the highest

future repetitive dives.

priority will be displayed� Clear that error by pressing

Use a slow ascent rate. FD Deep ft

the INFO button to see the next error� 19:16 0 C The ascent was L Monitor for symptoms of WARNINGMAX STOPWATCHE sustained as faster than A DCS. Use extra conser-

R 10m/min (33ft/min)

103.6FAST ASCENT4:57

vatism for future repeti-

See the Alerts section on page 23 for more

SURFACE

tive dives.

information�

Deep

19:16 E WARNINGMAX STOPWATCH The internal battery is A Recharge the battery.

R low�

103.6LOW BATTERY4:57

Contact Shearwater

SURFACE

The subsequent list of warnings, errors and ft

Deep

The decompression

notifications is not exhaustive� Please contact MAX19:16STOPWATCHE

WARNING tissue inert gas loading Plan repetitive dives A

R has been set to default accordingly.

Shearwater if you experience any unexpected errors: ft

103.6TISSUES 4:57CLEAR

levels�

SURFACE

info@shearwater�com

Deep

Switch to a gas with a

L Central Nervous

MAX19:16STOPWATCHE WARNING lower PPO2 or ascend A System (CNS) toxicity

R shallower (decompres-

103.6VERY HIGH4:57 CNS

clock exceeded 150%

sion ceiling allowing)

SURFACE

Deep

Switch to a gas with a

L Central Nervous

MAX19:16STOPWATCHE WARNING lower PPO2 or ascend

A System (CNS) toxicity R

ft shallower (decompres-

103.6 HIGH CNS4:57

clock exceeded 90%

sion ceiling allowing)

SURFACE

19:16

Page 86 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

Display Meaning Action to take Display Meaning Action to take m min GTR T1 GTR (and SAC) are not None. After a few minutes, T1 available for the first B Be aware that gas is run- wait enough data has been A few minutes of a dive� 29 R Tank pressure has ning low. Begin to end collected for display. .0 fallen below the critical your dive and perform a SURFACE

FD ft +Deep pressure� controlled ascent to the COMMS 0 T1 C P Alternates P L WARNINGMAX STOPWATCHE surface.

S S A

I 3042 I R

3042 ft

103.6TI CRITICAL4:57 15.2. AI Connection problems

m min SURFACE

COMMS T1

T1P Alternates P

S S

If you are seeing “No Comms” errors, follow these

Be aware that gas is run-

I I

------68219:16I Tank pressure has fallen ning low. Begin to end steps: .0

SURFACE below the reserve your dive and perform a

FD ft +Deep 0 C pressure setting� controlled ascent to the Low Bat T1 L If the “No Comms” is persistent: WARNINGMAX STOPWATCHE

P Alternates P A surface.

S S R

103.6TI I LOW PRESS4:57I

3042 3042

SURFACE

Check that the proper serial number is entered into

Low Bat

the Tx Setup menu�

P Alternates P

S S

I I Low transmitter Replace the transmitter Ensure the transmitter is turned on, by connecting 3042FD Deep19:16ft3042

0 C L battery� battery. it to a first stage and turning on the tank valve�

WARNINGMAX STOPWATCHE A

R Applying high pressure > 50 PSI (3�5 Bar) is the only

103.6T1 LOW BATT4:57

SURFACE way to turn on the transmitter� The transmitter will

Deep

power off after 2 minutes of no pressure�

Decompression stops

MAX STOPWATCH

Perform decompression

WARNING

A are required� Bring the handset within range (3ft / 1m) of the

19:16 R stops as directed. ft

103.6DECO NEEDED4:57

OC Rec mode only�

transmitter� Having the transmitter too close (less than

SURFACE

.0 2 inches / 5 cm) can also cause communication loss�

Deep

0 C NDL is less than 5 Ascend soon to avoid 19:16 L WARNINGMAX STOPWATCHE

A minutes� OC Rec mode decompression obliga-

103.6LOW NDL 4:57 only� tion.

If the “No Comms” is intermittent:

SURFACE

Search for sources of radio frequency (RF)

No Comms 19:16T1 No communications for See AI Connection prob- P Alternates P interference, such as HID lights, scooters, or photo COMMSS T1 S 30 to 90 seconds� lems on page 87 3042IP Alternates ----P I flashes� Try eliminating such sources to see if this S S 3042I 3042 I solves the connection problem� COMMS T1 • Check the distance from transmitter to handset� P Alternates P S S If range related dropouts are occurring during ----I ----I diving, locating the transmitter on short length .0 No communications for See AI Connection prob-

90+ seconds� lems on page 87 FD Deep ft of high pressure hose is possible to decrease the + 0 C

LowWARNING BatMAX STOPWATCHT1 E transmitter to handset distance�

P Alternates P R

S ft S

103.6T1 LOST 4:57COMMS

I I

3042 3042

SURFACE

GTR T1

Low Bat

GTR is not available

None. GTR will display

P P Alternates

19:16S S when on the surface� during a dive. 3042I --- 3042I

Page 87 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

16. Storage and Maintenance 17. Servicing

The Teric dive computer and transmitter should be There are no user serviceable parts inside the Teric or stored dry and clean. transmitters. Do not tighten or remove the faceplate screws. Clean with water ONLY. Any solvents may Do not allow salt deposits to build up on your dive damage the Teric dive computer. computer. Rinse your computer with fresh water to remove salt and other contaminants. Service of the Shearwater Teric may only be done at Shearwater Research, or by any of our authorized Do not wash under high pressure jets of water as it service centers. may cause damage to the depth sensor. Contact [email protected] for service requests. Do not use detergents or other cleaning chemicals as they may damage the dive computer. Allow to dry Evidence of tampering will void your warranty! naturally before storing. 18. Glossary Store the dive computer and transmitter out of direct sunlight in a cool, dry and dust free environment. - Closed circuit. Scuba diving using a rebreather Avoid exposure to direct ultra-violet radiation and CC radiant heat. where exhaled gas is recirculated with carbon dioxide removed. GTR - Gas Time Remaining. The time, in minutes, that 16.1. AMOLED Burn In can be spent at the current depth and SAC rate until a direct ascent to the surface would result in surfacing One of our favorite features of the Teric is the high- with the reserve tank pressure. contrast OLED screen. Unfortunately a trade-off with NDL - No Decompression Limit. The time, in any OLED is the risk of burn in over time. minutes, that can be spent at the current depth until mandatory decompression stops will be required. Burn in refers to a ghostly image that remains on the O - Oxygen gas. screen when the same screen content is displayed for 2 a long time. We employ techniques to try and prevent OC - Open circuit. Scuba diving where gas is exhaled burn in, but given the nature of a dive computer into the water (i.e. most diving). display, some burn in is inevitable. PPO2 - Partial Pressure of Oxygen, sometimes PPO2. RMV - Respiratory Minute Volume. Gas usage rate Burn in is more likely when you use your Teric as a measured as the volume of gas consumed, adjusted daily wear watch due to increased screen on time. as if at a pressure of one atmosphere. Units of Cuft/ Things You Can Do To Reduce Burn In minute or L/minute. SAC - Surface Air Consumption. Gas usage rate • Reduce screen brightness measured as the rate of tank pressure change, • Adjust timeouts to turn off the display sooner • Remove info from the watch display adjusted as if at a pressure of one atmosphere (i.e. surface pressure). Units of PSI/minute or Bar/minute.

Page 88 Doc. 15001-SI-RevE (2021-07-26) Operating Instructions

19. Teric Specifications Teric Specifications (cont.)

Speciﬁ cation Teric Battery 30 hours in dive mode� Operating OC Tec Operating Life 3 months in Standby Modes OC Rec Communications Bluetooth Smart CC/B0 (internal PPO2) Compass Gauge 1˚ Resolution Freedive Compass Decompression ˚ Bühlmann ZHL-16C with GF Accuracy ±5 Model Compass Tilt Display Full Color, Round 1�39” 400x400 AMOLED Yes, 45˚ pitch and roll Compensation Pressure (depth) Piezo-resistive Dive Log Over 400 hour detailed log at 10s logging sensor Capacity frequency� Calibrated 0 Bar to 14 Bar Range 2000 dive basic log Accuracy +/-20 mBar (at surface) Wrist 22mm width silicone watchband� +/-100 mBar (at 14bar) Attachment Crush Depth 20 Bar (~200msw) Weight 120g Limit Size (W X L X H) 54�5mm x 53�5mm x 17�5mm Surface Pressure 500 mBar to 1040 mBar Range Depth of dive 1�6m (adjustable in Freedive Mode) start Depth of dive 0�9m (adjustable in Freedive Mode) end Operating Temperature +4ºC to +32ºC Range Short-Term (hours) -10ºC to +50ºC Temperature Range Long-Term Storage +5ºC to +20ºC Temperature Range Battery Rechargeable Lithium Ion battery

Page 89 Doc� 15001-SI-RevE (2021-07-26) Operating Instructions

20. Regulatory Information Contact A) USA-Federal Communications Commission (FCC) Headquarters This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of FCC Rules. These limits are designed 100-10200 Shellbridge Way, to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency Richmond, BC energy. If not installed and used in accordance with the instructions, it may cause V6X 2W7 harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. Tel: +1.604.669.9958 [email protected] If this equipment does cause harmful interference to radio or television reception, which can be determined by tuning the equipment off and on, the user is encouraged to try and correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna • Increase the distance between the equipment and the receiver. • Connect the equipment to outlet on a circuit different from that to which the US Service Center receiver is connected. DIVE-Tronix, LLC. • Consult the dealer or an experienced radio/TV technician for help. Any changes or modifications not expressly approved by the party responsible for Snohomish, WA, USA compliance could void the user’s authority to operate the equipment. Tel: +1.858.775.4099 Caution: Exposure to Radio Frequency Radiation. [email protected] This device must not be co-located or operating in conjunction with any other antenna or transmitter. Teric Dive Computer Contains TX FCC ID: 2AA9B05 Pelagic Pressure Systems Transmitter Contains TX FCC ID: MH8A

B) Canada - Industry Canada (IC) EU Service Center This device complies with RSS 210 of Industry Canada. Narked at 90 Ltd Operation is subject to the following two conditions: (1) this device may not cause interference, and 15 Bentley Court, (2) this device must accept any interference, including interference that may cause undesired operation of this device. Paterson Rd, Wellingborough, L‘utilisation de ce dispositif est autorisée seulement aux conditions suivantes : (1) il ne doit pas produire d’interference, et Northants, UK (2) l’utilisateur du dispositif doit étre prêt à accepter toute interference NN8 4BQ radioélectrique reçu, même si celle-ci est susceptible de compromettre le fonctionnement du dispositif. Tel: +44.1933.681255 Caution: Exposure to Radio Frequency Radiation. The installer of this radio equipment must ensure that the antenna is located or [email protected] pointed such that it does not emit RF field in excess of Health Canada limits for the general population; consult Safety Code 6, obtainable from Health Canada’s website. Teric Dive Computer Contains TX IC: I2208A-05

C) EU and UK Conformance Statements Asia/Pac Service Center • EC type examination conducted by: SGS Fimko Oy Ltd, O.O. Box 30 (Särkiniementie 3) 00211 Helsinki, Finland, Notified Body No. 0598. Rob Edward • UK EC type examination conducted by: SGS United Kingdom Ltd, Weston-super- Wellington, NZ Mare, BS22 6WA, UK, Approved Body No. 0120. • Gas pressure sensing components conform with EN250:2014- Respiratory Tel: +64.21.61535378 equipment - requirements, testing and marking -clause 6.11.1 Pressure indicator for [email protected] use with air, compliant with standard EN12021. • Depth and time measurements conform with EN13359:2000 - Diving Accessories - depth gauges and combined depth and time monitoring devices • Electromagnetic compatability conforms with EN61000-6-3:2007+A1:2011 - Radiated Emissions and EN61000-6-1:2007 - Electromagnetic Immunity • Declarations of Conformity are available at: https://www.shearwater.com/iso- 9001-2015-certified/ • Shearwater EU Representative: Machinery Safety, Compliance Services BV, Zwolsestraat 156, 2587 BW, The Hague, Netherlands. • Shearwater UK Representitive: Narked at 90 ltd. 15 Bentley court, Paterson Rd, Wellingborough, Northants, NN84BQ, United Kingdom.

Page 90 Doc. 15001-SI-RevE (2021-07-26) Operating Instructions

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Page 91 Doc. 15001-SI-RevE (2021-07-26)