Shut-Off and Regulating Valves for Industrial Refrigeration Sensors For

Catalogue Shut-offSensors and for regulatingIndustrial Refrigeration valves for Industrial Refrigeration

Contents Page Liquid Level Sensor, type AKS 4100/4100U ...... 3 Gas detecting sensor, types GDA, GDC, GDHC, GDHF, GDH ...... 23

Shut-offLiquid Leveland regulating Sensor valves forType Industrial AKS 4100/4100U Refrigeration

Contents Page Features ...... 5 Product concept ...... 6 Optional HMI ...... 8 Measuring principle ...... 9 Main technical data ...... 9 Measuring range of AKS 4100/4100U - CABLE version ...... 10 Measuring range of AKS 4100/4100U - COAXIAL D14 version ...... 11 Measuring range of AKS 4100/4100U - COAXIAL D22 version ...... 11 Ordering AKS 4100/4100U ...... 12 Dimensions and weights ...... 13 Technical data ...... 14 Quick Setup ...... 16 Entering refrigerant dielectric gas constant ...... 19 Forcing mA output ...... 19 Saturated vapour dielectric constant ...... 20 Reset to factory setting ...... 21 How to change the language setting ...... 21

DKRCI.PD.SC0.F1.02 | 2017.09

Shut-offLiquid Leveland regulating Sensor valves forType Industrial AKS 4100/4100U Refrigeration

The AKS 4100/4100U liquid level sensor is designed AKS 4100/4100U - Cable Version AKS 4100/4100U - Coaxial Version specifically to measure liquid levels in a wide range of refrigeration applications. The AKS 4100/4100U liquid level sensor is based on a proven techhology called Time Domain Reflectometry (TDR) or Guided Micro Wave. AKS 4100/4100U liquid level sensor can be used to measure the liquid level of many different refrigerants in vessels, accumulators, receivers, standpipes, etc. The electrical output is a 2-wired, loop powered 4 – 20 mA output signal, which is proportional to the refrigerant liquid level. AKS 4100/4100U in a cable version is suitable for HCFC, Non flammable HFC and R717 (Ammonia), and differing lengths from 800 mm(31.5 in) and up to 5000 mm (197 in). The coaxial version of AKS 4100/4100U is designed for use with R744 (CO2), HCFC, Non flammable HFC and R717 (Ammonia). The AKS 4100/4100U coaxial version should always be used for marine applications for all refrigerant types. The AKS 4100/4100U cable version should NOT be used for CO2 or marine applications. Dust, foam, vapour, agitated surfaces, boiling surfaces, changes in density or in the dielectric constant , εr, for the liquid have no influence on the AKS 4100/4100U performance. Oil accumulated in the bottom of a standpipe will not disturb the liquid level signal and it is not necessary to remove AKS 4100/4100U for cleaning after oil has been drained out of the standpipe.

Features • Approved and qualified by Danfoss for • 5000 mm (197 in) probe length with cable refrigeration applications version • One product covering several probe lengths • 2-wire loop powered; no separate transformer (cable version) needed • A single product for all commonly used Please Note: refrigerants (cable version) AKS 4100/4100U can be connected directly to • Cable version requires less top-end clearance Danfoss EKE 347 liquid level controller and thus for installation and service be powered from EKE 347 • Proven operation with all refrigerants in If used together with Danfoss EKC 347 liquid combination with oil level controller, a 14 – 30 V DC supply is • No need to clean cable version when fully required. covered by oil • Multi language HMI. Level and setting readout • The cable version is very compact and easy in mm,cm,m (ft, in) to handle, ship, install and use with different Language HMI versions: lengths and refrigerants - English (default), German, French, Spanish • Changes of the liquid dielectric constant (εr) do - English (default),Japanese, Chinese Russian not affect operation

For further details regarding mechanical and electrical installation please refer to the product installation guides DKRCI.PI.SC0.D (CABLE version), DKRCI.PI.SC0.E (COAXIAL D14 version) and DKRCI.PI.SC0.H1 / DKRCI.PI.SC0.J1 (COAXIAL D22 version).

Product concept AKS 4100/4100U is available Both Cable and Coaxial versions are available with in two different versions: two different mechanical process connections: Cable version AKS 4100: G1 in. pipe thread. Coaxial version Aluminium gasket included AKS 4100U: ¾ in. NPT

CABLE version: COAXIAL D14 version: COAXIAL D22 version:

D22 marking

Cable version Cable version AKS 4100/4100U cable version must The cable version consists of: ALWAYS be installed in a standpipe.  Signal converter, which can be supplied with or without HMI  Mechanical process connection with 5 m / 197 in., Ø2 mm / 0.08 in. stainless cable  Counterweight  Accessory bag comprising: 3 mm set screws Red cover to protect mechanical process connection  prior to mounting signal converter. Setting label.

With the cable version it is possible to adapt the AKS 4100/4100U to any possible length in the range of 800 mm / 31.5 in. to 5000 mm / 196.9 in.

Cable version can be used in R717 / NH3, HCFC and HFC (εr, liquid > 5.6).

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Coaxial version Coaxial D14 version (see page 3) AKS 4100/4100U, Coaxial can be installed The Coaxial D14 version consists of: in a standpipe (a) or directly in a vessel (b).  Signal Converter (with or without HMI)  Mechanical process connection with b 5 m / 197 in., Ø2 mm / 0.08 stainless wire a  Tube(s) depending on required length  Accessory bag comprising: - End Connector (incl. 3 mm / 0.12 in. set screws.) - 3 mm / 0.12 in. set crews (1 set screw pr. tube) - Red cover to protect mechanical process connection , before Signal Converter is mounted. - Setting label.

Coaxial D22 version (see page 3) The Coaxial D22 version consists of:  Signal Converter (with or without HMI)  Mechanical process connection 280 mm / 11 in., . 8 mm / 0.3 in. inner rod.

The coaxial version is mandatory for use in: - R744 / CO2 (εr, liquid > 1.3). - Marine applications The coaxial version can also be used in the refrigerants: R717 / NH3, HCFC and HFC.

The coaxial version is available in the following probe lengths: Danfoss type Tube diameter Type selection in HMI Thread AKS 4100, 280 mm 22 mm 0.87 in. D22 G1 in. pipe thread AKS 4100, 500 mm 14 mm 0. 55 in. D14 G1 in. pipe thread AKS 4100, 800 mm 14 mm 0.55 in. D14 G1 in. pipe thread AKS 4100, 1000 mm 14 mm 0.55 in. D14 G1 in. pipe thread AKS 4100, 1200 mm 14 mm 0.55 in. D14 G1 in. pipe thread AKS 4100, 1500 mm 14 mm 0.55 in. D14 G1 in. pipe thread AKS 4100, 1700 mm 14 mm 0.55 in. D14 G1 in. pipe thread AKS 4100, 2200 mm 14 mm 0.55 in. D14 G1 in. pipe thread AKS 4100U, 11.0 in. 22 mm 0.87 in. D22 ¾ in. NPT AKS 4100U, 19.2 in. 14 mm 0.55 in. D14 ¾ in. NPT AKS 4100U, 30 in. 14 mm 0.55 in. D14 ¾ in. NPT AKS 4100U, 45 in. 14 mm 0.55 in. D14 ¾ in. NPT AKS 4100U, 55 in. 14 mm 0.55 in. D14 ¾ in. NPT AKS 4100U, 65 in. 14 mm 0.55 in. D14 ¾ in. NPT AKS 4100U, 85 in. 14 mm 0.55 in. D14 ¾ in. NPT

Optional HMI The optional HMI Service / Display unit is used Supported standard languages: for commissioning and quick on-site setup and is English (default), German, French, Spanish, easily mounted on the AKS 4100/4100U. Japanese, Chinese and Russian.

The service unit supports mulitple languages in both SI and US units.

 4 – 20 mA output displayed as bar graph and in percentage [%]  Measurement name (in this example, DISTANCE)

AKS 4100  Device tag name *  Measurement reading and unit  Device status (markers) Marker 1, 2 and 3 (Error) Hardware problem; the Signal Converter hardware is defective. Contact Danfoss. Marker 4 and 5 (Notification) Depending on the level, the marker is ON or OFF. Used for Danfoss service information only.  Keypad buttons  Flashing star indicating unit in operation.

Enter menu system Unit change at Change between: Enter QUICK SETUP distance / level Distance* readout: Level** m, cm, mm, in, ft Output (%)*** Output (mA)**** * DISTANCE is a display option. *** OUTPUT (%) is display option. If the display is set to “DISTANCE” the displayed Will represent the level of refrigerant,in value will be the distance from the Reference percent, scaled (entered in QUICK SETUP) point to the top surface of the liquid according to: SCALE 4 mA (0%), SCALE refrigerant (see pages 10 and 11). 20 mA (100%) (see pages 10 and 11).

** LEVEL is display option. **** OUTPUT I (mA) is display option. If the display is set to “LEVEL” then the value Will represent the level of refrigerant, displayed will be: in 4-20 milliampere, scaled (entered in QUICK SETUP) PROBE LENGTH (entered in QUICK SETUP) according to: SCALE 4 mA – DISTANCE (see pages 10 and 11) (4 mA), SCALE 20 mA (20 mA) (see pages 10 and 11).

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Measuring principle (Cable and Coaxial) 1. The electromagnetic (EM) pulse is transmitted by the signal converter 2. The pulse goes down the probe at the speed of light in air, V1 3. The pulse is reflected 4. The pulse goes up the probe at speed, V1 5. The converter receives the pulse and records the signal 6. The EM pulse moves at speed, V1 7. Transmitted EM pulse 8. Half of this time is equivalent to the distance from the reference point of the device (the flange facing) to the surface of the product 9. Received EM pulse

The AKS 4100/4100U electronic converter emits low- As long as the εr value of the liquid refrigerant is intensity, high frequency electromagnetic pulses higher than 1.2, AKS 4100/4100U can detect the with a width of approximately 1 nanosecond, which liquid level and level measurement accuracy is not travel at the speed of light along the probe (wire or affected. coaxial cable) down to the liquid surface. The pulses are reflected by the liquid surface, guided If the temperature condition in the standpipe / back along the probe, and received and analysed by vessel is known, a constant (dielectric constant of the AKS 4100/4100U electronic converter and then the refrigerant gas) can be entered (parameter 2.5.3 converted into a liquid level reading. This method is GAS EPS.R), in order to obtain improved Top and called time domain reflectometry (TDR) or guided Bottom Dead Zone values. microwave. Refer to pages 7 to 8 for Measuring range of AKS The dielectric constant, εr, of the liquid is a key 4100/4100U - CABLE version and COAXIAL version. parameter and has a direct impact on the degree For details of gas constant values for different of reflection of the high frequency electromagnetic temperatures and refrigerants plus the procedure pulses. Liquids with high εr values, such as ammonia, for entering these via the HMI, refer to pages 16 to 17. produce strong reflections, while liquids with low εr values, such as CO2, produce weak reflections.

Main technical data Supply Voltage Mechanical connection (see a complete list of all 14 – 30 V DC. Min/Max. Value for an output of 22 mA Cable version / Coaxial version: technical data on page 11) at the terminal. AKS 4100: G1 in. pipe thread. Aluminium gasket included Ambient temperature supply voltage limitations: AKS 4100U: ¾ in. NPT -40 – 80 °C / -40 – 176 °F : 16 – 30 V DC -20 – 80 °C / -4 – 176 °F : 14 – 30 V DC Refrigerants 1) The listed refrigerants are qualified and approved by Load Danfoss RL [Ω] ≤ ((Uext -14 V) / 20 mA). R717 / NH3 -40 – 50 °C / -40 – 122 °F – Default (Error output set to 3.6 mA) R744 / CO2 -50 – 15 °C / -58 – 59 °F RL [Ω] ≤ ((Uext -14 V) / 22 mA). – (Error output set to 22 mA) HCFC: R22 -50 – 48 °C / -58 – 118 °F HFC: R404A -50 – 15 °C / -58 – 59 °F Cable gland R410A -50 – 15 °C / -58 – 59 °F AKS 4100 PG 13, M20×1.5 ; R134A -40 – 50 °C / -40 – 122 °F (cable diameter: 6 – 8 mm / 0.24 – 0.31in. AKS 4100U ½ in. NPT The listed refrigerants may be used in the complete temperature range of AKS 4100/4100U, however, Refrigerant temperature the accuracy may be affected if the above listed -60 – 100 °C / -76 – 212 °F temperature range is exceeded. Ambient temperature Other refrigerants within the groups of HCFC and -40 – 80 °C / -40 – 176 °F HFC can be detected and measured if the following For HMI : -20 – 60 °C / -4 – 140 °F conditions are fulfilled: Process pressure Reference conditions -1 – 100 barg / -14.5 – 1450 psig Dielectric constant Terminals (spring loaded) Cable version can be used in R717 / NH3, HCFC and HFC 0.5 – 1.5 mm² (~20-15 AWG) (εr, liquid > 5.6 ). Enclosure: The coaxial version is mandatory for use in: IP 66/67 (~NEMA type 4X) - R744 / CO2 (εr, liquid > 1.3). - Marine applications.

The coaxial version can also be used in the 1) AKS 4100 Coaxial 280mm and refrigerants: AKS 4100U Coaxial 11 in are only R717 / NH3, HCFC and HFC. released for R717/NH3

Measuring range of AKS 4100/4100U - CABLE version

Reference point Bottom deadzone values based on the factory setting of dielectric constant Refrigerant Probe length range Bottom dead Top dead zones zone 120 mm / 4.7 in. [mm] [in.] [mm] [in.] 20 mA 800 31.5 115 4.2 (100 %)* 801 – 999 31.5 – 39 120 4.7 Ammonia, 1000 – 1999 39 – 79 150 5.9 HFC, HCFC 2000 – 2999 79 – 118 180 7.1 3000 – 3999 118 – 157 210 8.3 4000 – 5000 157 – 197 240 9.4 e 4 mA (0 %)* Distanc

Improved Bottom dead zone values after the obe length* Pr adjustment of dielectric constant Standpipe diameter: 2 – 4 in. Refrigerant Probe length range Bottom dead Measuring range zone Inner length of the standpipe [mm] [in.] [mm] [in.] Surface level Ammonia, 800 – 5000 31.5 – 197 90 3.5 HFC, HCFC

Bottom dead zone (see tables) Counterweight: 33 mm / 1.3 in. Min: 20 mm / 0.8 in.

Steel wire insertion length: * Values to be entered into HMI Quick Setup menu Danfoss and recorded on the setting label. M84H0017_1 12 mm / 0.5 in. Stick the setting label onto the Signal Converter either inside or outside.

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Measuring range of AKS 4100/4100U - COAXIAL D14 version Please note: It is mandatory to input dielectric constant for CO2 applications. AKS 4100 AKS 4100U Dielectric Constant εr always set during Quick Dielectric Constant εr always set during Quick Setup Setup Bottom Bottom Bottom Bottom Refrigerant Probe Dead Dead Refrigerant Probe Dead Dead Length Zone Zone Length Zone Zone [mm] [in.] [mm] [in.] [in.] [in.] [mm] 500 19.7 19.2 800 31.5 30 Reference point 1000 39.4 45 CO2 6.7 170 CO2 1200 47.2 170 6.7 55 Top 1500 59.1 65 dead 1700 66.9 85 zone 2200 86.6 120 mm / 4.7 in. 20 mA Factory setting Factory setting (100 %)* Bottom Bottom Probe Bottom Bottom Probe Refrigerant Dead Dead Refrigerant Length Dead Dead Length Zone Zone Zone Zone [mm] [in.] [mm] [in.] [in.] [in.] [mm] 500 19.7 95 3.7 19.2 3.73 95 800 31.5 104 4.1 30 4.05 103 1000 39.4 110 4.3 45 4.50 114 Ammonia Ammonia 1200 47.2 116 4.6 55 4.80 122 1500 59.1 125 4.9 65 5.10 130 e 1700 66.9 131 5.2 85 5.70 145 2200 86.6 146 5.8 Distanc 4 mA (0 %)*

Improved Bottom dead zone values Improved Bottom dead zone values obe length* after the adjustment of dielectric constant after the adjustment of dielectric constant Pr Bottom Bottom Bottom Bottom Refrigerant Probe Dead Dead Refrigerant Probe Dead Dead Measuring range Length Zone Zone Length Zone Zone [mm] [in.] [mm] [in.] [in.] [in.] [mm] 500 19.7 19.2 Surface level Inner length of the stand pipe 800 31.5 30 1000 39.4 45 Ammonia 3.1 80 Ammonia 1200 47.2 80 3.2 55 1500 59.1 65 1700 66.9 85 2200 86.6 Bottom Factory setting Factory setting dead Probe Bottom Bottom Probe Bottom Bottom zone Refrigerant Length Dead Dead Refrigerant Length Dead Dead Min: 30 mm / 1.2 in. Zone Zone Zone Zone (see tables) [mm] [in.] [mm] [in.] [in.] [in.] [mm] 500 19.7 115 4.5 19.2 4.52 115 Ø2 mm / 0.08 in. 800 31.5 124 4.9 30 4.84 123 stainless wire 1000 39.4 130 5.1 45 5.29 134 Danfoss HCFC,HFC M84H0026_1 HCFC,HFC 1200 47.2 136 5.4 55 5.59 142 1500 59.1 145 5.7 65 5.89 150 * Values to be entered into HMI Quick Setup menu and 1700 66.9 151 5.9 85 6.49 165 recorded on the setting label. 2200 86.6 166 6.5 Stick the setting label onto the Signal Converter either inside Improved Bottom dead zone values Improved Bottom dead zone values or outside. after the adjustment of dielectric constant after the adjustment of dielectric constant Bottom Bottom Bottom Bottom Refrigerant Probe Dead Dead Refrigerant Probe Dead Dead Length Zone Zone Length Zone Zone [mm] [in.] [mm] [in.] [in.] [in.] [mm] 500 19.7 19.2 800 31.5 30 1000 39.4 45 HCFC,HFC 3.94 100 HCFC,HFC 1200 47.2 100 3.9 55 1500 59.1 65 1700 66.9 85 2200 86.6

Measuring range of AKS 4100/4100U - COAXIAL D22 version

AKS 4100 AKS 4100U Factory setting Factory setting Probe Bottom Bottom Probe Bottom Bottom Refrigerant Dead Dead Refrigerant Dead Dead Reference point Length Zone Zone Length Zone Zone [mm] [in.] [mm] [in.] [in.] [in.] [mm] Ammonia 280 11.0 48 1.9 Ammonia 11.0 1.9 48 Top dead zone Improved Bottom dead zone values Improved Bottom dead zone values 60 mm / 2.4 in. 20 mA after the adjustment of dielectric constant after the adjustment of dielectric constant (100 %)* e Probe Bottom Bottom Probe Bottom Bottom Refrigerant Dead Dead Refrigerant Dead Dead Length Zone Zone Length Zone Zone

[mm] [in.] [mm] [in.] [in.] [in.] [mm] Distanc Ammonia 280 11.0 40 1.6 Ammonia 11.0 1.6 40 obe length* 4 mA (0 %)* Pr Surface level Measuring range

Bottom dead zone Inner length of the stand pipe * Values to be entered into HMI Quick Setup menu and recorded on the setting label. (see tables) Stick the setting label onto the Signal Converter either inside or outside. Min: 30 mm / 1.2 in.

Ordering AKS 4100/4100U Cable version - AKS 4100/4100U

Description Code number Code number Code number with HMI with HMI without HMI English (default) English (default) German Japanese French Chinese * When ordering Spanish Russian without HMI AKS 4100 with 5 m / 197 in., Ø2 mm / Ø0.08 in. 084H4501 084H4550 084H4500 please observe: stainless cable and counterweight AKS 4100U with 5 m / 197 in., Ø2 mm / Ø0.08 in. 084H4521 084H4571 084H4520 Each AKS 4100/AKS 4100 stainless cable and counterweight must always be programmed via the HMI display unit.

The HMI display unit can be ordered separately: Coaxial version - AKS 4100/4100U (available in predefined lengths, with or without HMI) • 084H4540 / 084H4590 D14 D22 AKS 4100/4100U HMI display Description Probe length Code number Code number Code number unit with rear cover and mm in. with HMI with HMI Without HMI* mounting bracket. English (default) English (default) German Japanese The mounting bracket is French Chinese very useful when the AKS Spanish Russian 4100/4100U have to be AKS 4100 - Coaxial D14 500 084H4510 084H4560 084H4503 programmed. AKS 4100 - Coaxial D14 800 084H4511 084H4561 084H4504 The same AKS 4100/4100U AKS 4100 - Coaxial D14 1000 084H4512 084H4562 084H4505 HMI display unit can be used to programme more AKS AKS 4100 - Coaxial D14 1200 084H4513 084H4563 084H4506 4100/4100U and both Cable AKS 4100 - Coaxial D14 1500 084H4514 084H4564 084H4507 and Coaxial versions. AKS 4100 - Coaxial D14 1700 084H4515 084H4565 084H4508 AKS 4100 - Coaxial D14 2200 084H4516 084H4566 084H4509 • 084H4548 / 084H4598 AKS 4100 - Coaxial D22 1) 280 084H4517 084H4567 084H4518 AKS 4100/4100U HMI display AKS 4100U - Coaxial D14 19.2 084H4530 084H4580 084H4524 unit (usually spare part). AKS 4100U - Coaxial D14 30 084H4531 084H4581 084H4525 AKS 4100U - Coaxial D14 45 084H4532 084H4582 084H4526 AKS 4100U - Coaxial D14 55 084H4533 084H4583 084H4527 AKS 4100U - Coaxial D14 65 084H4534 084H4584 084H4528 AKS 4100U - Coaxial D14 85 084H4535 084H4585 084H4529 AKS 4100U - Coaxial D22 1) 11 084H4536 084H4586 084H4537 1 ) AKS 4100 Coaxial 280mm and AKS 4100U Coaxial 11 in. are only released for R717/NH3

Accessories

Description Code number Code number with HMI with HMI English (default) English (default) German Japanese French Chinese Spanish Russian AKS 4100/4100U HMI Service/Display unit with rear cover and 084H4540 084H4590 mounting bracket AKS 4100/4100U HMI Display 084H4548 084H4598 AKS 4100/4100U Signal Converter + Metaglass with HMI, 084H4555 084H4556 excluding cable gland AKS 4100/4100U converter connecting cable (5 pcs.) 084H4557

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Ordering AKS 4100/4100U Service kits Continued Description Content Code number Cable - 5 m / 197 in., Ø2 mm / Ø0.08 in. Cable and counterweight for Crimp 084H4542 AKS 4100/4100U - CABLE version Counterweight End connector incl screws for End connector (incl. 3 mm / 0.12 in. 084H4549 AKS 4100/4100U - COAXIAL D14 version set screws)

Process connection, counterweight and 1 in. process connection 5 m / 197 in., Ø2 mm / Ø0.08 in. cable for Counterweight 084H4545 AKS 4100 - CABLE and COAXIAL D14 version

3 Process connection, counterweight and ⁄4 in. NPT process connection 5 m / 197 in., Ø2 mm / Ø0.08 in. cable for Counterweight 084H4546 AKS 4100U - CABLE and COAXIAL D14 version

Other spare parts

Description Code number AKS 4100/4100U Coaxial tube. Tube length : 680 mm / 26.8 in. 084H4543

AKS 4100/4100U blank top cover for signal converter 084H4544

AKS 4100/4100U Aluminium gaskets (10 pcs.) for 1in. process connection 084H4547

AKS 4100 1. in. welding connection 027F1010 Process connection 084H4551 AKS 4100 - Coaxial D22 - G1 in. - 280 mm Process connection 084H4552 AKS 4100U - Coaxial D22 - ¾ in. NPT – 11 in.

Dimensions and weights

CABLE version / Ø0.9 in. Ø22 mm Ø92 mm / Ø3.6 in. Ø104 mm / Ø4.1 in.

Ø2 mm / Ø0.08 in. 33 mm / 1.3 in.

177.5 mm / 7 in. 34.2 mm / Probe length 1.4 in.

Weight: approx. 2.0 kg / 4.4 lbs

COAXIAL D14 version Ø104 mm / Ø4.1 in. Ø21 mm / Ø0.8 in. Ø14 mm / Ø0.6 in.

177.5 mm / 7 in. 34.2 mm / Probe length 1.4 in.

Weight: approx. 3.5 kg / 7.7 lbs

Dimensions and weights (continued)

COAXIAL D22 version / 0.8 in. 21.1 mm Ø 104 mm / 4.1 in.

34.2 mm / 177.5 mm / 7 in. 1.4 in. Probe length

Weight: 2.1 kg / 4.6 lbs

Technical data Measuring system Measuring principle 2-wire loop-powered level transmitter; Time Domain Reflectometry (TDR ) Application range Level measurement of liquid refrigerants. Approved refrigerants:

Halogen Free / Environmently friendly: R717 / NH3, R744 / CO2 HCFC and non flammable HFC. Primary measured value Time between the emitted and received signal Secondary measured value Distance or level

Design Options Probe types Cable Mechanical process connection with 5 m / 197 in., Ø2 mm / 0.08 in. stainless cable: Mechanical thread on the mechanical process connection AKS 4100: G1 in. pipe thread. Aluminium gasket included AKS 4100U: ¾ in. NPT Coaxial D14 Mechanical process connection with 5 m / 197 in., Ø2 mm / 0.08 in. stainless cable and 14 mm / 0.55 in. outer stainless tube: Mechanical thread on the mechanical process connection AKS 4100: G1 in. pipe thread. Aluminium gasket included AKS 4100U: ¾ in. NPT Stainless steel tubes supporting the available probe length Coaxial D22 Mechanical process connection with in 22 mm / 0.87 in. outer stainless tube. 8 mm / 0.3 in. inner rod. Mechanical thread on the mechanical process connection AKS 4100: G1 in. pipe thread. Aluminium gasket included AKS 4100U: ¾ in. NPT LCD display Insertions (probe) length Coaxial D14 AKS 4100: 500, 800, 1000, 1200, 1500, 1700 and 2200 mm AKS 4100U: 19.2, 30, 45, 55, 65, 85 in. Coaxial D22 AKS 4100: 280 mm AKS 4100U: 11.0 in. Single cable Ø2 mm / 0.08 in.: 800 – 5000 mm / 31.5-197 in. Dead zone This depends on the type of probe. (see pages 7 and 8)

Display and User interface Display Integrated LCD display 128 × 64 pixels in 8-step greyscale with 4-button keypad Interface languages English (default), German, French, Spanish, Japanese, Chinese, Russian

Operating conditions Temperature: Ambient temperature -40 – 80 °C / -40 – 175 °F For HMI : -20 – 60 °C / -4 – 140 °F Storage temperature -40 – 85 °C / -40 – 185 °F Process connection temperature Standard -60 – 100 °C / -76 – 212 °F

Pressure: Operating pressure Standard: -1 – 100 barg / -14.5 – 1450 psig

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Technical data Other conditions: (continued) Liquid dielectric constant (εr) Cable version to be used in R717 / NH3, HCFC and HFC εr, liquid > 5.6 Coaxial version is mandatory in R744 / CO2 εr, liquid > 1.3 Vibration resistance EN 60721-3-4 (1...9 Hz: 3 mm / 10...200 Hz:1g; 10g shock half-wave sinusoidal: 11 ms) Protection category IP 66/67 equivalent to NEMA type 4X (housing) and type 6P (probe)

Installation conditions Dimensions and weights See pages 13 and 14

Material Housing Aluminium Coaxial D14 and D22 version Standard: Stainless steel (1.4404 / 316L) Single cable Standard: Stainless steel (1.4401 / 316) Process fitting Standard: Stainless steel (1.4404 / 316L) Gaskets EPDM (-50...150 – -58...300 °F Cable gland Plastic (black)

Process connections Thread: Single cable Ø2 mm / 0.08¨ AKS 4100: G1 inch pipe thread. Aluminium gasket included 3 AKS 4100U: ⁄4 inch NPT Coaxial D14 and D22 version AKS 4100: G1 inch pipe thread. Aluminium gasket included 3 AKS 4100U: ⁄4 inch NPT

Electrical connections Power supply Terminals output: 14-30 V DC Min./Max. Value for an output of 22 mA at the terminal. Ambient temperature limitations: -40 – 80 °C / -40 – 176 °F : 16 – 30 V DC -20 – 80 °C / -4 – 176 °F : 14 – 30 V DC Current output load RL [Ω] ≤ ((Uext -14 V)/20 mA). – Default (Error output set to 3.6 mA) RL [Ω] ≤ ((Uext -14 V)/22 mA). – (Error output set to 22 mA) Cable gland AKS 4100: PG 13, M20×1.5 ; (cable diameter: 6-8 mm (0.24-0.31in) 1 AKS 4100U: ⁄2 inch NPT Cable entry capacity (terminal) 0.5-1.5 mm2 (~20 – 15 AWG)

Input and output Current output: Output signal 4…20 mA or 3.8…20.5 mA acc. to NAMUR NE 43 Resolution ±3 μA Temperature drift Typically 75 ppm/K Error signal High: 22 mA; Low: 3.6 mA acc. to NAMUR NE 43; Hold (frozen value - not available with NAMURNE 43 compliant output.

Approvals and certification This device fufills the statutory requirements of the EMC directives. The manufacturer certifies successful testing of the product by applying the CE mark. Valid for AKS 4100 - Not valid for AKS 4100U: Pattern Approval Certificate of Measuring Instruments for the Russian Federation

In compliance with EMC regulations in the Russian Federation Other standards and approvals: EMC EMC Directives 2004 / 108 / EC and 93 / 68 / EEC in conjunction with EN 61326-1 (2006) and EN 61326-2-3 (2006). The device conforms to these standards if : - the device has a coaxial probe or - the device has a single probe that is installed in a metallic tank. LVD Low-Voltage Directives 2006 / 95 / EC and 93 / 68 / EEC in conjunction with EN 61010-1 (2001) NAMUR NAMUR NE 21 Electromagnetic Compatibility (EMC) of Industrial Process and Laboratory Control Equipment NAMUR NE 43 Standardization of the Signal Level for the Failure Information of Digital Transmitters

Technical data Minimum power supply voltage (continued) Use this graph to find the minimum power supply voltage for a given current output load: ] Ω [

L R Current output load

Power supply U [VDC]

Minimum power supply voltage for an output of 22mA at the terminal

Note: The signal converter can be programmed with or without mechanical process connector assembled. Quick Setup (all values below are only examples)

• Connect the device to the power supply • Press to change of SCALE 4 mA. • Press to confirm. (see the section "Electrical installation / Press to change the cursor position. AKS 4100 connection". Press to decrease the value or to 1.0.0 STORE NO • Press 3 times. increase the value. Press to confirm. AKS 4100 AKS 4100 • Press or to select either QUICK SETUP ? SCALE 20 mA STORE NO or STORE YES. 00070 mm YES NO Press to confirm.

• Press Default screen appears: AKS 4100 AKS 4100 PROBE TYPE • Press to change of SCALE 20 mA. DISTANCE SINGLE CABLE Press to change the cursor position. 5000 mm Press to decrease the value or to increase the value. • Press or to select between SINGLE, COAXIAL D14 and COAXIAL D22. Press to confirm. Quick Setup completed Choose SINGLE and press to confirm. AKS 4100 AKS 4100 You have the possibility of checking PROBE LENGTH QUICK SETUP 05000 mm COMPLETED IN 8 your settings by pressing twice. AKS 4100 SINGLE CABLE 5000 mm • Press to change the PROBE LENGTH. • Wait for QUICK SETUP to complete (0%) 4 mA 4877 mm 8-second timeout Press to change the position of the (100%) 20 mA 120 mm cursor. AKS 4100 4100 Press to decrease the value or to 1.0.0 QUICKQUICKSTART SETUP ? Press to return to increase the value. default screen. Press to confirm. YES NO AKS 4100 SCALE 4 mA 04946 mm

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Note: The signal converter can be programmed with or without mechanical process connector assembled. Quick Setup (all values below are only examples)

When CO2 is used: • Connect the device to the power supply • Press to confirm. AKS 4100 (see the section "Electrical installation / AKS 4100 connection"). PROBE LENGTH QUICK SETUP 05000 mm COMPLETED IN 8 • Press 3 times. AKS 4100 • Wait for QUICK SETUP to complete. • Press to change the PROBE LENGTH. Count down from 8 sec. QUICK SETUP ? Press to change the position of the AKS 4100 4100 YES NO cursor. 1.0.0 QUICKQUICK STARTSETUP ? Press to decrease the value or to • Press increase the value. YES NO AKS 4100 Press to confirm. • Press to confirm. PROBE TYPE SINGLE CABLE AKS 4100 AKS 4100 SCALE 4 mA 1.0.0 04946 mm STORE NO • Press or to select between SINGLE, COAXIAL D14 and COAXIAL D22. Choose • Press to change of SCALE 4 mA. COAXIAL D14 and press to confirm. • Press or to select between AKS 4100 Press to change the cursor position. STORE NO or STORE YES. LIQUID CO2 ? Press to decrease the value or to Press to confirm. increase the value. YES NO Press to confirm. Default screen appears: • Press (YES) to confirm AKS 4100 AKS 4100 SCALE 20 mA DISTANCE AKS 4100 00070 mm 5000 mm GAS EPS R ?

001.000 Quick Setup completed • Press to change of SCALE 20 mA. • Press to change GAS EPS.R. You have the possibility of checking (Select the correct value from the tables Press to change the cursor position. your settings by pressing twice. on page 20) Press to decrease the value or to Press to change cursor- increase the value. AKS 4100 position. COAXIAL D14 2200 mm Press to confirm. (0 %) 4 mA 1900 mm Press to decrease the value or to (100 %) 20 mA 70 mm increase the value.

Press to return to default screen.

For all other refrigerants (please note that Coaxial D22 version can only be used in R717/NH3): • Connect the device to the power supply • Press to change the PROBE LENGTH. AKS 4100 (see the section "Electrical installation / Press to change the position of the connection"). cursor. QUICK SETUP COMPLETED IN 8 Press to decrease the value or to • Press 3 times. increase the value. • Wait for QUICK SETUP to complete. AKS 4100 Press to confirm. Count down from 8 sec. AKS 4100 AKS 4100 QUICK SETUP ? AKS 4100 SCALE 4 mA 1.0.0 YES NO 04946 mm QUICK STARTSETUP ? YES NO • Press AKS 4100 • Press to change of SCALE 4 mA. • Press to confirm. PROBE TYPE Press to change the cursor position. SINGLE CABLE AKS 4100 Press to decrease the value or to 1.0.0 increase the value. STORE NO • Press or to select between SINGLE, Press to confirm. COAXIAL D14 and COAXIAL D22. Choose AKS 4100 COAXIAL D14 and press to confirm. SCALE 20 mA • Press or to select between AKS 4100 00070 mm STORE NO or STORE YES. LIQUID CO2 ? Press to confirm.

YES NO Default screen appears: • Press to change of SCALE 20 mA. • Press (NO) to confirm Press to change the cursor position. AKS 4100 DISTANCE AKS 4100 Press to decrease the value or to 5000 mm PROBE LENGTH increase the value. 05000 mm Press to confirm. Quick Setup completed

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CABLE and COAXIAL version Forcing mA output (all values below are only examples)

Default screen • Press • Press 4 times to return to default AKS 4100 AKS 4100 screen. DISTANCE 2.2.0 5000 mm TESTS Default screen appears: AKS 4100 • Press DISTANCE • Press 5000 mm AKSAKS 4100 4100 1.0.0 AKS 4100 QUICK SETUPSTART ? 2.2.1 Force mA completed and disabled SET OUTPUT YES NO

• Press AKS 4100 • Press 2.0.0 AKS 4100 SUPERVISOR SET OUTPUT 3.5 mA

• Press AKS 4100 • Press to decrease the value or to 2.0.0 increase the value. ______Press to confirm. AKS 4100 Enter password: SET OUTPUT 8 mA

AKS 4100 2.1.0 INFORMATION

Optional Procedure If the temperature condition in the stand pipe is known, a constant (dielectric constant of the refrigerant gas) can be entered (parameter 2.5.3 GAS EPS.R), in order to obtain lower Top and Bottom Dead Zone values (see pages 10 and 11). Entering refrigerant dielectric gas constant (all values below are only examples)

Default screen • Press 4 times. • Press to confirm. AKS 4100 AKS 4100 AKS 4100 DISTANCE 2.5.0 2.5.3 5000 mm APLICATION GAS EPS. R

• Press • Press • Press 3 times. AKS 4100 4100 1.0.0 AKS 4100 AKS 4100 2.5.1 QUICK STARTSETUP ? 1.0.0 TRACING VEL. STORE NO YES NO

• Press • Press 2 times. • Press or to select between AKS 4100 2.0.0 AKS 4100 STORE NO or STORE YES. SUPERVISOR 2.5.3 Select STORE YES by pressing GAS EPS. R Default screen appears: • Press AKS 4100 • Press to change GAS EPS.R. DISTANCE AKS 4100 (Select the correct value from the tables 5000 mm 2.0.0 on page 20) ______Press to change cursor- Entering the dielectric constant of position. refrigerant gas completed Enter password: Press to decrease the value or to increase the value.

AKS 4100 AKS 4100 2.1.0 GAS EPS. R INFORMATION 1.066

Saturated vapour dielectric constant (default value: 1.066)

R717 (NH3) R744 (CO2) Temperature range: Temperature range: -60 – 50 °C / -76 – 122 °F -56 – 15 °C / -69 – 59 °F Temperature Temperature Dielectric constant Temperature Temperature Dielectric constant [°C] [°F] of refrigerant gas [°C] [°F] of refrigerant gas Parameter 2.5.3 Parameter 2.5.3 GAS EPS.R GAS EPS.R -60 – -42 -76 – -43 1.00 -56.0 – -42.0 -69 – -43 1.01 -41 – -18 42 – 0 1.01 -41.0 – -28.0 -42 – -18 1.02 -17 – -5 1 – 23 1.02 -27.0 – -17.0 -17 – 2 1.03 -4 – 4 24 – 39 1.03 -16.0 – -9.0 3 – 16 1.04 5 – 12 40 – 54 1.04 -8.0 – -3.0 17 – 27 1.05 13 – 18 55 – 64 1.05 -2.0 – 2 28 – 36 1.06 19 – 24 65 – 75 1.06 3 – 7 37 – 45 1.07 25 – 28 76 – 82 1.07 8 – 11 46 – 52 1.08 29 – 33 83 – 91 1.08 12 – 14 53 – 58 1.09 34 – 37 92 – 99 1.09 15 59 1.10 38 – 40 100 – 104 1.10 41 – 44 105 – 111 1.11 45 – 47 112 – 117 1.12 48 – 50 118 – 122 1.13 R22 R134a Temperature range: Temperature range: -60 – 48 °C / -76 – 118 °F -60 °C – 50 °C / -76 – 122 °F Temperature Temperature Dielectric constant Temperature Temperature Dielectric constant [°C] [°F] of refrigerant gas [°C] [°F] of refrigerant gas Parameter 2.5.3 Parameter 2.5.3 GAS EPS.R GAS EPS.R -60 – -50 -76 – -58 1.00 -60 – -42 -76 – -43 1.00 -49 – -25 57 – -13 1.01 -41 – -18 -42 – -0 1.01 -24 – -10 -12 – 14 1.02 -17 – -4 1 – 25 1.02 -9 – 0 15 – 32 1.03 -3 – 5 26 – 41 1.03 1 – 8 33 – 46 1.04 6 – 13 42 – 56 1.04 9 – 15 47 – 59 1.05 14 – 20 57 – 68 1.05 16 – 21 60 – 70 1.06 21 – 25 69 – 77 1.06 22 – 26 71 – 79 1.07 26 – 30 78 – 86 1.07 27 – 31 80 – 88 1.08 31 – 34 87 – 94 1.08 32 – 35 89 – 95 1.09 35 – 38 95 – 100 1.09 36 – 39 96 – 102 1.10 39 – 42 101 – 108 1.10 40 – 42 103 – 108 1.11 43 – 45 109 – 113 1.11 43 – 45 109 – 113 1.12 46 – 48 114 – 119 1.12 46 – 48 114 – 118 1.13 49 – 50 120 – 122 1.13

R410A R404A Temperature range: Temperature range: -65 – 15 °C / -85 – 59 °F -60 – 15 °C / -76 – 59 °F Temperature Temperature Dielectric constant Temperature Temperature Dielectric constant [°C] [°F] of refrigerant gas [°C] [°F] of refrigerant gas Parameter 2.5.3 Parameter 2.5.3 GAS EPS.R GAS EPS.R -65 – -47 -85 – -52 1.01 -60 – -47 -76 – -52 1.01 -46 – -35 -51 – -31 1.02 -46 – -35 -51 – -31 1.02 -34 – -26 -30 – -14 1.03 -34 – -26 -30 – -14 1.03 -25 – -19 -13 – -2 1.04 -25 – -19 -13 – -2 1.04 -18 – -13 -1 – 9 1.05 -18 – -14 -1 – 7 1.05 -12 – -8 10 – 18 1.06 -13 – -9 8 – 16 1.06 -7 – -4 19 – 25 1.07 -8 – -4 17 – 25 1.07 -3 – 0 26 – 32 1.08 -3 – 0 26 – 32 1.08 1 – 4 33 – 40 1.09 1 – 3 33 – 38 1.09 5 – 7 41 – 45 1.10 4 – 6 39 – 43 1.10 8 – 10 46 – 50 1.11 7 – 9 44 – 49 1.11 11 – 12 51 – 54 1.12 10 – 12 50 – 54 1.12 13 – 15 55 – 59 1.13 13 – 15 55 – 59 1.13

R507 Temperature range: -60 – 15 °C / -76 – 59 °F Temperature Temperature Dielectric constant [°C] [°F] of refrigerant gas Parameter 2.5.3 GAS EPS.R -60 – -48 -76 – -54 1.01 -47 – -36 -53 – -32 1.02 -35 – -28 -31 – -18 1.03 -27 – -21 -17 – -6 1.04 -20 – -15 -17 – -5 1.05 -14 – -10 -4 – 14 1.06 -9 – -6 13 – 22 1.07 -5 – -2 23 – 29 1.08 -1 – 2 30 – 36 1.09 3 – 5 37 – 41 1.10 6 – 8 42 – 47 1.11 9 – 11 48 – 52 1.12 12 – 13 53 – 56 1.13 14 – 15 57 – 59 1.14

20 | DKRCI.PK.000.S4.02 | 520H11419 © Danfoss | DCS (mwa) | 2017.08 Liquid Level Sensor, type AKS 4100/4100U

How to change the language setting (Default: English)

Default screen Enter password: • Press or to see the language AKS 4100 possibilities DISTANCE AKS 4100 5000 mm Press to confirm. 2.1.0 INFORMATION AKS 4100 2.7.1 • Press LANGUAGE • Press 6 times AKSAKS 4100 4100 1.0.0 AKS 4100 QUICK SETUPSTART ? 2.7.0 • Press 3 times DISPLAY YES NO AKS 4100 2.0.0 STORE NO • Press • Press AKS 4100 AKS 4100 2.0.0 2.7.1 • Press or to select between SUPERVISOR LANGUAGE STORE NO or STORE YES. Select STORE YES by pressing • Press Default screen appears: • Press AKS 4100 AKS 4100 AKS 4100 LANGUAGE DISTANCE 2.0.0 ENGLISH 5000 mm ______Language setup completed

Reset to factory setting

• Go to SUPERVISOR menu (see page 19).

• Go to parameter 2.9.4 Reset Factory. • Select RESET FACTORY YES

• Press 3 times to return to default screen.

Factory reset completed.

Shut-offGas detecting and regulating sensor valves forTypes Industrial GDA, GDC, Refrigeration GDHC, GDHF, GDH

Contents Page Features ...... 25 Technical data ...... 26 Electrical connection ...... 27 Design ...... 28 Sensor technology ...... 29 Calibration / test methods ...... 29 Product range ...... 30 Functions - all models ...... 31 Normalization Period ...... 31 Mother PCB ...... 32 GD connected to Danfoss monitoring ...... 33 Ordering ...... 35 Dimensions ...... 38

DKRCI.PD.S00.A9.02 | 2016.11

Shut-offGas detecting and regulating sensor valves forTypes Industrial GDA, GDC, Refrigeration GDHC, GDHF, GDH

Danfoss gas detecting sensor program, type GD is a range of products designed to meet all industrial refrigeration and air conditioning applications.

GD detects a wide range of commonly used refrigerants including Ammonia, Carbon Dioxide, Halocarbons and Hydrocarbons.

GD sensors incorporate an interchangeable precalibrated sensor board, which makes it very easy to replace the sensor when service or calibration is required.

The GD products feature reliable, real time continuous monitoring. No blocked filters, tubes or technical / maintenance problems experienced by air sampling / aspirated systems.

Features • GD is specifically developed for refrigeration • Optional NO or NC and different delay setting applications for both Low and High Alarm Level • Interchangeable precalibrated sensor board • Manual or Auto reset optional means reduced costs of recalibration and • Low and High Alarm levels and delays setting, maintenance can be changed by the user • Optional models: LCD display, IP 65 • GD can be connected directly to a Danfoss m2, models, Exd (Explosion Protected), Exd Low Micromon or AK-SM 350 monitoring unit temperature, Models with remote sensor, • Available with a range of different sensor Models with remote Exd sensor, Models with technologies to monitor industrial refrigeration remote display, Models for Low temperature gases: down to -40 °C / -40 °F – Electro-Chemical (EC) • Can operate as stand alone product. – Semi-Conductor (SC) • Linear analog outputs, current (mA) / volt (V) – Catalytic (CT) proportional to the gas concentration – Infra-Red (IR) • Two digital outputs. Low Level and High Level • Calibration Certificates available Alarm

Technical data Refrigerants - [ppm] range:

Ammonia (R 717) Type GDA: HFC ( R134A) – 0 – 100 ppm Type GDHF – R3 – 0 – 300 ppm – 0 – 1,000 ppm – 0 – 1,000 ppm – 0 – 10,000 ppm Hydro – carbon (R 290, R 600, R 600A, R 1270) – 0 – 30,000 ppm Type GDH – 0 – 5,000 ppm Carbon Dioxide (R 744) Type GDC Reference temperature conditions for factory 0 – 10,000 ppm calibration: 0 – 20000 ppm Ambient temperature 0 – 40000 ppm For increased accuracy the unit must be calibrated at the temperature of operation. Halo – Carbon – HCFC (R 22, R 123) Type GDHC Response times may vary based on temperature of – 0 – 1,000 ppm operation, enclosure, and environmental conditions

HFC (R 404A, R 507) Alarm thresholds should be set accordingly based on Type GDHF the environment of operation and the application in – 0 – 1,000 ppm which they are being used

Technical data (Continued)

Models Standard Basic Standard IP 65 with IP 65 enclosure Exd model Exd model IP 66 enclosure IP 66 enclosure Remote LCD Basic with LCD stainless steel Low 5 m remote 5 m remote display display sensor head Temperature IP 65 sensor IP 65 Exd IP 41 Sensor sensor 5 m cable 3)

Temperature range EC 1) -20 – 40 °C / 0 – 40 °C / -20 – 40 °C / -20 – 40 °C / -40 – 40 °C / -40 -20 – 40 °C / -40 – 40 °C / -20 – 40 °C / -20 – 40 °C / 0 – 40 °C / -4 – 104 °F 32 – 104 °F -4 – 104 °F -4 – 104 °F – 104 °F -4 – 104 °F -40 – 104 °F -4 – 104 °F -4 – 104 °F 32 – 104 °F SC, CT -20 – 50 °C / 0 – 50 °C / -20 – 50 °C / -40 – 50 °C / -20 – 50 °C / -40 – 50 °C / -20 – 50 °C / -20 – 50 °C / 0 – 50 °C / -4 – 122 °F 32 – 122 °F -4 – 122 °F -40 – 122 °F -4 – 122 °F -40 – 122 °F -4 – 122 °F -4 – 122 °F 32 – 122 °F IR 0 – 50 °C / 0 – 50 °C / -20 – 50 °C / -40 – 50 °C / -20 – 50 °C / not available not available not available 0 – 50 °C / 32 – 122 °F 32 – 122 °F -4 – 122 °F -40 – 122 °F -4 – 122 °F 32 – 122 °F

Weight (excluding packing) EC 4408 g (9.72 lb) 4408 g (9.72 lb) 1199 g (2.64 lb) 1199 g (2.64 lb) SC, CT 912 g (2.01 lb) 947 g (2.09 lb) 903 g (1.99 lb) 562 g (1.24 lb) 421 g (0.93 lb) IR 3600 g (7.94 lb) not available not available not available

Electrical data EC 12 – 24 V DC, 0.23A 12 – 24 V DC, 0.23A 12 – 24 V DC, 0.23A 12 – 24 V DC, 0.23A SC, CT 12 – 24 V AC 4 W 12 – 24 V AC 4 W 12 – 24 V AC 4 W 12 – 24 V AC 4 W Supplied from connector on GD IR 12 – 24 V DC 0.3 A 12 – 24 V DC not available not available not available motherboard 0.24 A

Enclosure EC IP 65 2) IP 66 2) IP 66 IP 30 IP 30 IP 65 IP 65 IP 65 IP 41 SC, CT (~NEMA 4) (~NEMA 4x) (~NEMA 4x) (~NEMA 1) (~NEMA 1) (~NEMA 4) (~NEMA 4) (~NEMA 4) (~NEMA 1) IR not available not available not available 1) Two models. 2) Remote sensor: IP 65. 3) For all models except Exd and Exd Low Temp.

Sensor head Models Standard Basic Standard IP 65 for High IP 65 enclosure Exd model Exd model IP 66 enclosure IP 66 enclosure Basic with LCD RH and Fast Low 5 m remote 5 m remote IP display response Temperature IP 65 sensor 65 Exd Sensor sensor

Thread on external sensor EC M 42 x 1.5 mm M 42 x 1.5 mm M 42 x 1.5 mm M 42 x 1.5 mm M 42 x 1.5 mm

5 5 5 SC M 42 x 1.5 mm 1” ⁄16 x 20 UNF 1” ⁄16 x 20 UNF M 42 x 1.5 mm 1” ⁄16 x 20 UNF – – M 42 x 1.5 mm 5 CT M 35 x 1.5 mm 1” ⁄16 x 20 UNF M 35 x 1.5 mm M 35 x 1.5 mm M 35 x 1.5 mm IR M 42 X 1.5mm M 42 X 1.5mm not available not available not available

Material for external sensor EC Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel SC, CT – – Stainless Steel Plastic Stainless Steel Stainless Steel Stainless Steel Stainless Steel IR Stainless Steel Stainless Steel not available not available not available

26 | DKRCI.PK.000.S4.02 | 520H11419 © Danfoss | DCS (mwa) | 2017.08 Gas detecting sensor, types GDA, GDC, GDHC, GDHF, GDH

Cable connection 1 gland for 6 – 13 mm cable (0.2 – 0.5 in) 1 Ø 20 mm (0.8 in) hole with blanking plug. 1 extra gland can be fitted (only Standard, LCD display, IP 65 and Exd).

Approvals CE: ATEX for Exd model: EN55011: 1998, Directive 94/9/EC Group 2, Category2, G EN61326: 1996 and D, Zones 1 and 2. Following the provisions of 89/336/EEC, EMC Directives and, Cenelec EN61010-2 : 2001 Following the provisions of 73/23/EEC, Low Voltage directive (LVD)

Electrical connection All terminals will accept 0.5 – 1.5 mm2 (20-15 AWG) Digital output – volt free contacts Load: 1 A, 24 V AC/DC Analog output 4 – 20 mA Max. 400Ω 0 – 10 V Min. 10 kΩ 0 – 5 V Min. 10 kΩ RS 485 Communication To Danfoss Monitoring System: Danfoss m2 Danfoss Micromon Danfoss AK SM 350

Design The GD product range is designed in a very flexible The sensor PCB is always precalibrated and dedicated way with a mother PCB (Print Circuit Board) and an to the actual refrigerant and ppm range. Danfoss has in interchangeable precalibrated sensor PCB. advance selected the most appropriate sensor making it easy to optain safe detection and avoid false alarms The mother PCB is the same for all GD models from other gases present. independent of the refrigerant or sensor Because of the interchangeable precalibrated technology. On the mother PCB individual settings sensor PCB, it is very easy to replace the sensor (Alarm levels, delays e.t.c) can be set to meet local when service or a calibration procedure is required legislation or application requirements. (see the below drawings).

n Standard n IP 65 with stainless steel sensor head n LCD display n Exd n Exd Low Temp

Sensor PCB with remote sensor

Mother PCB

Sensor PCB

Sensor head

Mother PCB

n IP 65 enclosure 1 140002

Mother PCB

Sensor head

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Sensor technology Danfoss has, depending on actual ppm range and GD product range makes it easy to pick out the right refrigerant, selected the most appropriate sensor for product. the target refrigerant gas. When the refrigerant and actual ppm range has been decided, the Danfoss Below is a brief introduction to the GD sensor types. For further information - please contact Danfoss.

Electrochemical Sensors - EC Catalytic - CT EC sensors are used mainly for toxic gases and are CT sensors have been mainly used for combustible suitable for ammonia but not for the other refrigerants. gases including ammonia. CT are relatively low-cost, They are very accurate and tend to be used principally well established and understood and they have a for toxic gases which cannot be otherwise detected or good life span, up to 5 years. They can be subject to where high levels of accuracy are needed. poisoning in certain applications but not generally in refrigeration and are more effective at gas levels of Semi-conductor – SC above 2,000 ppm. SC sensors can be used for a wide range of gases including combustible, toxic and refrigerant gases. Infrared - IR The SC sensors are low-cost, long life, sensitive, stable, IR sensors are very specific and is very precise for resistant to poisoning and can be used to detect a detection of CO2. large range of gases including all the CFC, HCFC, HFC refrigerants, ammonia and hydrocarbons. However, they are not selective and are not suited to detecting a single gas in a mixture or for use where high concentrations of interfering gases are likely to be present.

Calibration / test methods The calibration procedure consist of: • Annual checks by qualified bump test • Calibration by replacement of the sensor PCB with a Danfoss pre-calibrated certified sensor PCB

Annual Test To comply with the requirements of EN378 and the F GAS regulation sensors must be tested annually. However local regulations may specify the nature and frequency of this test. If not the Danfoss recommended bump test procedure should be followed. Contact Danfoss for details. For increased accuracy the unit must be calibrated at the temperature of operation. After exposure to a substantial gas leak, sensor should be checked and replaced if necessary. Check local regulations on calibration or testing requirements.

Method I This method requires that Danfoss offers factory Danfoss recommends that the calibration / test Calibration / test by means of calibrated PCB sensor boards with calibration certificate procedure is done by means of replacing the Sensor replacing Sensor PCB and traceability codes. Additionally an electrically PCB, because: simulation is required to verify the output signals and alarm settings. • No need to purchase calibration gases in several different concentrations The PCB sensor board, which is the essential measuring • Simpler and quicker than gas calibration element of the gas detector, is produced, calibrated, • Danfoss guarantees the correct calibration and tested and certified by Danfoss. functioning of the new sensor PCB, which is supplied with a calibration certificate. After the main PCB of the gas detector has been tested with the GD tester, the new calibrated Sensor PCB can • No problems with sensor deterioration or end-of-life be installed. • Price competitive, compared to the gas calibration carried out on site. Test and calibration of GD Main Board by the use of GD tester Certiﬁcate

XXXXXXXXXXXXXXXXXXXXX Certiﬁcate: XXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXX Gas / calibration levels etc. XXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXX Traceability

Bump test A Bump Test consists of exposing the sensor to a gas. The objective is to establish if the sensor is reacting to the gas and all the sensor outputs are working correctly. A qualified bump test is a test carried out using ampoules or similar of known concentration. Bump test of gas sensors (this test is a function test - it is not a calibration) SC EC CT IR Semi- Electro- Catalytic Infrared Method Refrigerant conductor chemical Ampoules Ammonia   Lighter gas HCFC, HCF  Lighter gas HC - Hydro Carbon  

Ampoules or (Breath on sensor) CO2  Ammonia water Ammonia 

Technician use only! This unit must be installed by a suitably qualified technican who will install this unit in accordance with these instructions and the standards set down in their particular industry / country. Suitably qualified operators of the unit should be aware of the regulations and standards set down by their industry / country for the operation of this unit. These notes are only intended as a guide and the manufacturer bears no responsibility for the installation or operation of this unit. Failure to install and operate the unit in accordance with these instructions and with industry guidelines may cause serious injury including death and the manufacturer will not be held responsible in this regard. Product range 14000 1

Standard LCD display IP 65 with stainless steel sensor head Exd Exd Low temperature for CO2 Exd Low temperature

Remote LCD display IP 41

IP 65 enclosure IP 66 enclosure 5 m remote IP 65 sensor IP 66 enclosure 5 m remote IP 65 Exd sensor

• Standard • Exd Basic standard model for machine / engine rooms Like Standard but applicable in explosive areas Zone and cold rooms 1 and 2 and higher IP(NEMA). • Standard with LCD display The sensor is mounted in an external Stainless Steel Basic standard model for machine / engine rooms head with the actual reading of present ppm level in the • Remote LCD (accessory) room and Alarm messages Remote LCD display with 5 m cable • IP 65 Two models with IP 65 available: • Remote sensor - IP 65 with stainless steel sensor head. Models with 5 m cable. Can be used in connection Temperature down to -20 °C / -4 °F with safety valves / vent pipe applications. - IP 65 enclosure. Temperature down to Also available with remote Exd sensor -40 °C / -40 °F

30 | DKRCI.PK.000.S4.02 | 520H11419 © Danfoss | DCS (mwa) | 2017.08 Gas detecting sensor, types GDA, GDC, GDHC, GDHF, GDH

Functions - all models All GD models shown above have the same basic With the option Auto reset selected, the release of the functions. All settings are done by means of jumper Low or High Level Alarm is done automatically. settings on the mother PCB. All GD models are factory set to Auto Reset. See the section “Mother PCB” for more details. For detailed information on how to adjust Alarm The factory preset values can be adjusted, with a setting - please see the instruction PI.S00.A. voltmeter measuring a 0-5 V DC output. 0 V corresponds to the min. ppm range (e.g. 0 ppm) Alarm 5 V corresponds to the max. ppm range (e.g. 1000) All GD models can detect 2 alarm levels and give alarm via 2 volt free contacts. When an alarm has been Example: detected a yellow LED (Low Level Alarm) or a red LED If a setting of 350 ppm is required the voltage shall be (High Level Alarm) will go ON. All GD sensors have been set to 1.75 V (35 % of 5 V) preset by the factory, to realistic Low / High values related to the actual ppm range of the GD model. The Analog Output actual Low and High Alarm ppm values can be read on All GD will continuously generate a linear analog the external GD label. output, proportional to the gas concentration. The signal is available as 4 – 20 mA, 0 – 10 V and 0 – 5 V. The 2 volt free contacts can be set individually to either All are available at the same time (see next page). Normally Open (NO) or Normally Closed (NC). All GD models are factory set to NO LCD display The model with the LCD display will continuously display the actual present ppm level in the room and the Alarm messages. NO/NC can not be used as fail safe during Upper Line: power failure. Actual present ppm level (e.g: “580 ppm”). Both Low and High Level Alarm can be delayed Lower Line: individually before the 2 volt free contacts are Alarm status. activated. This is useful when cross interference from 4 text messages are possible - only one at a time: other gasses may occur. The delayed response time can “No Alarm” Neither Low Level Alarm nor be set to 0, 1, 5 or 10 minutes. High Level Alarm active. All GD models are factory set to 0 minutes. “Lo Alarm on” Low Level Alarm active. When the GD sensors have detected a Low or High “Lo,Hi Alarm on” Both Low Level Alarm and Level Alarm an option for having these alarms with High Level Alarm active. Manual reset or Auto Reset is possible. With the option “Hi Alarm on” High Level Alarm active. Manual reset selected, a push button on the mother PCB must be activated to release the Low or High Level Alarm.

Normalization Period Once the GD is powered up it takes some time to 1) normalize. When GD is powered up it will give a Always use the voltage 0-10 V to check the output for higher analog output (4 – 20 mA/0 – 10 V/0 – 5 V 1)) in normalization check the beginning and after some time it goes back to the actual concentration (in clean air and no leaks, 2) the analog output will go back to: GDC IR goes back to about 400 ppm as this is the normal ~ 0 V/4 mA / ( ~ 0 ppm)) 2) level in air. (~4.6 mA/~0.4 V/ 0.2 V) Times below are only intended as a guide. 3) They may vary due to temperature, humidity, cleanliness of the air, storage time 3) etc. If the GD has been in long-term storage or has been turned off for a long period, normalisation would be much Model slower. However within 1 – 2 hours the GD should have EC Sensors are 2 min (all models) dropped below the low alarm level and be operational. SC Sensors are 60 minutes (all models) The progress can be monitored exactly on the 0 – 10V CT Sensors are 60 minutes (all models) IR Sensors are 2 minutes (all models) output. When the output settles around zero (400 ppm in the case of IR CO2 sensors) the GD is normalised. In exceptional circumstances particularly with SC and CT sensors the process can take up to 30 hours.

For SC Sensors, it must be calibrated at temperature of operation.

Mother PCB

32 | DKRCI.PK.000.S4.02 | 520H11419 © Danfoss | DCS (mwa) | 2017.08 Gas detecting sensor, types GDA, GDC, GDHC, GDHF, GDH

Mother PCB (Continued)

GD connected to Danfoss Danfoss offers the possibility of connecting every GD, assigned an address. See next page. monitoring independent of model, via the built-in RS 485 Bus A conversion chart between channel number of the communication, directly to the Danfoss monitoring Danfoss monitoring system and the hexadecimal unit. address of the GD is attached. Power must be removed when setting the addresses on the GD sensor. Up to 31 GD sensors can be connected via a two- If more than 31 units are needed, a GD Repeater core screened communication cable (see the below (amplifier) must be installed (see Accessories). drawing). Every GD sensor needs a unique address number which Contact Danfoss for further information. must be selected. The address of GD is set by S2 and S3. By setting S2 and S3 between 0 and F, the GD will be

Danfoss m2 Micromon AK-SM 350

GD connected to Danfoss monitoring (Continued)

Channel on Danfoss S3 S2 Channel on Danfoss S3 S2 Channel on Danfoss S3 S2 Monitoring System Monitoring System Monitoring System 1 0 1 34 2 2 67 4 3 2 0 2 35 2 3 68 4 4 3 0 3 36 2 4 69 4 5 4 0 4 37 2 5 70 4 6 5 0 5 38 2 6 71 4 7 6 0 6 39 2 7 72 4 8 7 0 7 40 2 8 73 4 9 8 0 8 41 2 9 74 4 A 9 0 9 42 2 A 75 4 B 10 0 A 43 2 B 76 4 C 11 0 B 44 2 C 77 4 D 12 0 C 45 2 D 78 4 E 13 0 D 46 2 E 79 4 F 14 0 E 47 2 F 80 5 0 15 0 F 48 3 0 81 5 1 16 1 0 49 3 1 82 5 2 17 1 1 50 3 2 83 5 3 18 1 2 51 3 3 84 5 4 19 1 3 52 3 4 85 5 5 20 1 4 53 3 5 86 5 6 21 1 5 54 3 6 87 5 7 22 1 6 55 3 7 88 5 8 23 1 7 56 3 8 89 5 9 24 1 8 57 3 9 90 5 A 25 1 9 58 3 A 91 5 B 26 1 A 59 3 B 92 5 C 27 1 B 60 3 C 93 5 D 28 1 C 61 3 D 94 5 E 29 1 D 62 3 E 95 5 F 30 1 E 63 3 F 96 6 0 31 1 F 64 4 0 97 6 1 32 2 0 65 4 1 98 6 2 33 2 1 66 4 2 99 6 3

Reference material Danfoss m2 literature: Micromon: Technical Leaflet RB8BA Technical leaflet RC8AU Manual RS8AN Instruction RI8HV (Micromon Expanable) Instruction RI8BM Instruction RI8GA (Micromon) Danfoss AK-SM 350 literature: Danfoss GD apllication guide: Manual RS8EF PA.000.B Instruction RI8LC

34 | DKRCI.PK.000.S4.02 | 520H11419 © Danfoss | DCS (mwa) | 2017.08 Gas detecting sensor, types GDA, GDC, GDHC, GDHF, GDH

Ordering ------PCB Sensor 148H5265 5 m remote 5 m remote - 1) 1) 1) 1) 1) 1) 1) 1) 1) 1) 1) IP 66 enclosure IP 66 enclosure IP 65 Exd sensor IP 65 Exd Complete 148H5028 ------PCB Sensor 148H5273 148H5275 148H5261 148H5262 148H5263 148H5264 5 m remote 5 m remote IP 65 sensor - - 1) 1) 1) 1) 1) 1) IP 66 enclosure IP 66 enclosure Complete 148H5007 148H5017 148H5027 148H5107 148H5117 148H5127 ------PCB Sensor 148H5268 148H5269 148H5241 - Temperature 1) 1) 1) 1) 1) 1) 1) 1) 1) 1) Exd model Low model Low Exd Complete 148H5006 148H5016 148H5026 - - - - PCB Sensor 148H5208 148H5240 148H5209 148H5209 148H5241 148H5211 148H5250 148H5243 148H5260 Exd model Exd - 1) 1) 1) 1) 1) Complete 148H5003 148H5013 148H5053 148H5023 148H5033 148H5073 148H5113 148H5193     - PCB Sensor 148H5221 148H5224 148H5225 148H5225     - Code number Code Complete 148H5005 148H5065 148H5015 148H5055 IP 65             - - PCB Sensor –20°C/+40°C (–4°F/104°F) –40°C/+50°C (–40°F/122°F) –40°C/+40°C (–40°F/104°F)

148H5222 148H5226 148H5226 148H5227 148H5228 148H5229 148H5218 148H5219 148H5220 148H5223 148H5217 148H5242                - - Complete 148H5009 148H5019 148H5059 148H5049 148H5029 148H5039 148H5072 148H5082 148H5092 148H5109 148H5119 148H5129 - - - - - PCB Sensor 148H5208 148H5209 148H5209 148H5254 148H5210 148H5211 148H5212 148H5213 148H5247 - - - - - 1) steel sensor head steel IP 65 with stainless Complete 148H5002 148H5012 148H5052 148H5042 148H5022 148H5032 148H5102 148H5112 - - - - PCB Sensor 148H5200 148H5201 148H5201 148H5202 148H5203 148H5204 148H5205 148H5206 148H5246 148H5267 - 1) 1) 1) 1) Standard Basic Standard with LCD display with LCD Complete 148H5001 148H5011 148H5021 148H5031 148H5071 148H5101 148H5111 148H5121 148H5191 - - PCB Sensor 148H5200 148H5215 148H5201 148H5201 148H5249 148H5202 148H5203 148H5204 148H5205 148H5206 148H5246 148H5267 1) 1) Standard Basic Standard Complete 148H5000 148H5060 148H5010 148H5050 148H5040 148H5020 148H5030 148H5070 148H5100 148H5110 148H5120 148H5190

type Semi- Semi- Semi- Semi- Semi- Semi- Sensor Electro- Electro- Electro- Electro- Infrared Infrared Infrared Catalytic chemical chemical chemical chemical Conductor Conductor Conductor Conductor Conductor Conductor

0 0 0 0 0 0 0 0 0 0 0 0 0 [s]” Resp. Delay Delay 35 25/ 25/ 80/ 200 500 250 900 900 900 100/ 500/ 500/ 500/ 500/ 800/ High 1000 9000 9000 2500 Low/ limits 5000/ 3000/ 5000/ Alarm [ppm] 28000 18000 36000 10000/ 20000/ 0-100 0-300 [ppm] Range 0-1000 0-1000 0-1000 0-1000 0-1000 0-1000 0-5000 0-10000 0-30000 0-10000 0-20000 0-40000 2 All models All Type Danfoss EC 100 GDA EC 300 GDA EC 1000 GDA EC 1000 GDA SC 1000 GDA SC 10000 GDA CTGDA 30000 GDC IR 10000 GDC IR 20000 GDC IR 40000 GDHC SC 1000 GDHF SC 1000 GDHF-R3 SC 1000 GDH SC 5000 Contact Danfoss Contact Standard GD models Standard Type of gas R 717 R 744 HCFC R 22, R 123 HFC R 404A, R 507 HFC R 134A Hydro-Carbon R 290, R 600, R 600A, R 1270 1) Ammonia NH3 Ammonia - CO Dioxide Carbon Halo-Carbon

Ordering - GD sensor PCB Description Code No. GDA EC 100 sensor PCB 148H5200 GDA EC 1000 sensor PCB 148H5201 GDA SC 10000 sensor PCB 148H5202 GDA CT 30000 sensor PCB 148H5203 GDC IR 10000 sensor PCB for Standard Basic and Standard Basic with LCD display 148H5204 GDHC SC 1000 sensor PCB 148H5205 GDHF SC 1000 sensor PCB 148H5206 GDA EC 100 sensor PCB Ext for IP 65/Exd enclosure 148H5208 GDA EC 1000 sensor PCB Ext for IP 65/Exd enclosure 148H5209 GDA SC 10000 sensor PCB Ext for IP 65 enclosure 148H5210 GDA CT 30000 sensor PCB Ext for IP 65/Exd enclosure 148H5211 GDHC SC 1000 sensor PCB Ext for IP 65 enclosure 148H5212 GDHF SC 1000 sensor PCB Ext for IP 65 enclosure 148H5213 GDA EC 300 sensor PCB Ext for IP 65/Exd enclosure 148H5240 GDA EC 300 sensor PCB 148H5215 GDA SC 10000 sensor PCB Ext for Exd enclosure/Exd Low Temp. enclosure 148H5241 GDHF SC 1000 sensor PCB Ext for Exd enclosure 148H5243 GDHF-R3 SC 1000 sensor PCB 148H5246 GDHF-R3 SC 1000 sensor PCB Ext for IP 65 enclosure 148H5247 GDA SC 1000 sensor PCB 148H5249 GDC IR 10000 sensor PCB Ext for Exd enclosure 148H5250 GDA SC 1000 sensor PCB Ext for IP 65 enclosure 148H5254 GDH SC 5000 sensor PCB Ext for Exd enclosure 148H5260 GDA SC 10000 sensor PCB with 5 m remote IP 65 sensor. For IP 66 enclosure 148H5261 GDHC SC 1000 sensor PCB with 5 m remote IP 65 sensor. For IP 66 enclosure 148H5262 GDHF SC 1000 sensor PCB with 5 m remote IP 65 sensor. For IP 66 enclosure 148H5263 GDHF-R3 SC 1000 sensor PCB with 5 m remote IP 65 sensor. For IP 66 enclosure 148H5264 GDA SC 10000 sensor PCB with 5 m remote IP 65 Exd sensor. For IP 66 enclosure 148H5265 GDH SC 5000 sensor PCB 148H5267 GDA EC 100 sensor PCB Ext for Exd Low Temp. enclosure 148H5268 GDA EC 1000 sensor PCB Ext for Exd Low Temp. enclosure 148H5269 GDA EC 100 sensor PCB with 5 m remote IP 65 sensor. For IP 66 enclosure 148H5273 GDA EC 1000 sensor PCB with 5 m remote IP 65 sensor. For IP 66 enclosure 148H5275

Ordering - GD upgrade kits Description Code No. GDA EC 100 LT IP56 sensor upgrade kit 148H5221 GDA EC 100 HT IP56 sensor upgrade kit 148H5222 GDA EC 1000 LT IP56 sensor upgrade kit 148H5225 GDA EC 1000 HT IP56 sensor upgrade kit 148H5226 GDA SC 10000 IP56 sensor upgrade kit 148H5228 GDA CT 30000 IP56 sensor upgrade kit 148H5229 GDA SC 1000 IP56 sensor upgrade kit 148H5227 GDA EC 300 LT IP56 sensor upgrade kit 148H5224 GDC IR 10000 IP56 sensor upgrade kit 148H5218 GDC IR 20000 IP56 sensor upgrade kit 148H5219 GDC IR 40000 IP56 sensor upgrade kit 148H5220 GDHC SC 1000 IP56 sensor upgrade kit 148H5223 GDHF SC 1000 IP56 sensor upgrade kit 148H5217 GDHF-R3 SC 1000 IP 56 sensor upgrade kit 148H5242

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Ordering - Accessories Description Code No. GD Test Kit 148H5230 - GD Tester all models. To test mother PCB at Sensor PCB replacement - Beaker M42 - EC/SC/CT-Adapter. Fit Beaker M42 - M35 Adapter. Fit Beaker M42 GD mother PCB all models 148H5232 GD Tester for mother PCB, all models 148H5239 I-PACK(10) GD Ampoules 100 ppm ammonia 148H5234 I-PACK(10) GD Ampoules 1000 ppm ammonia 148H5235

I-PACK(10) GD Ampoules 2000 ppm CO2 148H5236 Remote LCD display IP 41 148H5238

GD Tester and GD Mother PCB

GD Tester

GD Mother PCB

Bump test equipment

Beaker

Ampoules

EC/SC/CT-Adaptor M35 Adaptor

Dimensions

Standard LCD display

IP 65 with stainless steel sensor head Exd Exd Low Temperature

12 1 122 140004 122 1

IP 65 Enclosure

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Dimensions (Continued)

IP 66 enclosure 5 m remote IP 65 sensor Remote LCD display IP 41 IP 66 enclosure 5 m remote IP 65 Exd sensor

Exd for CO2