M2 cod. 44200552 - Rev. B - 07/07 - printed by Me.ca - 4.500 - 07/07 - Artbook 3161/07 - printed by Me.ca 4.500 - 07/07 B - 07/07 cod. 44200552 - Rev. Manuale d’istruzioni • User’s Guide • Bedienungsanleitung • Manuel d’utilisation Mares S.p.A. - Salita Bonsen, 4 - 16035 RAPALLO - ITALY - Tel. +39 01852011 - Fax +39 0185669984 Manual de instrucciones • Manual de instruções • Gebruikershandleiding • Användarinstruktioner www.mares.com Οδηγίες χρήσης • Käyttäjän Opas • Instrukcja użytkowania • Felhasználói útmutató M2 DIVE COMPUTER ENGLISH CONTENTS M2 DIVE COMPUTER 26 SURFACE MODE 42 WARNINGS, CAUTIONS AND SAFETY RULES 26 POST DIVE SURFACE TIME 42 QUICK GUIDE 29 CALENDAR AND CLOCK 43 TECHNICAL/FUNCTIONAL CHARACTERISTICS 30 SCROLLING OF NO DECOMPRESSION LIMITS 43 TECHNICAL CHARACTERISTICS 30 DIVE SIMULATOR 44 FUNCTIONAL CHARACTERISTICS 30 LOGBOOK 44 OPERATING MODES 31 INTERFACING TO A PC 46 UTILITY FUNCTIONS 31 FAQ 46 SETUP OF TECHNICAL PARAMETERS 32 MAINTENANCE 47 DIVING WITH THE M2 35 REPLACING THE BATTERIES 47 ACTIVATING DIVE MODE 35 WARRANTY 47 AIR DIVE 35 DISPOSAL OF THE DEVICE 48 "NITROX" DIVE 39 "BOTTOM TIME" 41 25 M2 DIVE COMPUTER WARNINGS, CAUTIONS AND ƽ WARNING Congratulations. The dive computer which you SAFETY RULES The dive computer cannot prevent possible have purchased is the result of the latest MARES Important: decompression problems. technology, and has been designed to ensure Any critical information or warnings that might The dive computer cannot take into account maximum safety, efficiency, reliability and long life. affect the performance or result in the injury of the physical conditions of the individual This computer is further enhanced by certain the technician, COMPUTER M2 owner, or other diver, which may vary from one day to the innovative features, which place it at the top of persons are highlighted with the following next. the MARES product range. For your safety, have a general medical symbols: New RGBM Mares-Wienke decompression check-up before undertaking a dive. algorithm with deep stop option. ƽ CAUTION Operating modes: “Air”, “Nitrox”, “Bottom Time”. Indicates a potentially hazardous situation ƽ WARNING which, if not avoided, may result in minor “Bottom Time” with seconds display. In addition to the dive computer, also use a or moderate injury. It may also be used to Optical port for uploading data to a PC. depth gauge, a submersible pressure gauge, alert against unsafe practices. Increased Logbook capacity (approximately a timer or watch, and dive tables. 38 hours of profiles, with points at 20 sec intervals). ƽ WARNING ƽ WARNING Timer-controlled or permanent backlighting. Indicates a potentially hazardous situation Before the dive, check that the units of which, if not avoided, could result in death In this manual you will discover all the other measurement have been set correctly. or serious injury. functions that make M2 one of the most complete Incorrect settings might cause confusion computers available on the market today. You will resulting in underwater behavior errors. find all the instructions for learning how to use ƽ DANGER the M2 computer and its functions. Indicates an imminently hazardous ƽ WARNING MARES thanks you for your choice and urges you situation which, if not avoided, will result Do not dive if the instrument display seems to always practice safe and responsible diving. in death or serious injury. anomalous or unclear. Before diving, make sure you have read and understood the entire instruction manual. ƽ WARNING Check the battery power level before ƽ WARNING starting your dive. The M2 computer is designed exclusively Do not dive if the <battery> icon indicates for recreational sports use and not for that the battery is low. Replace the professional applications. batteries. 26 M2 DIVE COMPUTER RESPONSIBLE DIVING PRACTICES ƽ WARNING ƽ WARNING Always plan your dives in advance. Do not dive in mountain lakes without Before starting a “Nitrox” dive, check Never exceed the limits of your skill and having first checked that the appropriate that the dive computer is set to “Nitrox” experience. altitude program is enabled. mode, then check the composition of the Go to the deepest planned depth at the breathing mix you will be using and enter beginning of the dive. ƽ WARNING its oxygen percentage in the appropriate Check your computer frequently during the ENGLISH M2 may be used with oxygen-rich mixtures SET function. dive. (nitrox) ONLY by suitably trained and Entering an incorrect oxygen percentage Comply with the ascent rate indicated by the certified divers. Attempting to dive without will lead to errors in the readouts for: computer. adequate nitrox training might result in - no-decompression time remaining; Always do a safety stop at 10 - 16 feet (3 serious injury. - decompression stop times; - 5 meters) for at least 3 minutes. - alarm for exceeding the maximum After the safety stop, ascend very slowly to permitted O2 partial pressure. ƽ WARNING the surface. Avoid yo-yo dives (repeatedly ascending and The use of oxygen-rich mixtures exposes The safety of a dive can only be assured by descending underwater). the diver to different hazards from those adequate preparation. Avoid strenuous activity during the dive and associated with compressed air. The diver MARES recommends taking a specialist training for half an hour after surfacing. must be aware of these risks and understand course before diving with a dive computer. When diving in cold water or in the case of a how to avoid them. MARES recommends scrupulous observance strenuous dive, start ascending well before of the simple safe diving rules set out in the reaching the NO DECO limits. ƽ WARNING paragraph on “responsible diving practices”. If it is a decompression dive, prolong the Indicates a potentially hazardous situation decompression stop nearest to the surface by which, if not avoided, may result in minor several minutes. or moderate injury. It may also be used to Repetitive dives should be separated by a alert against unsafe practices. surface interval of at least 2 hours. Your deepest dive should be the first one of the ƽ WARNING day. Indicates a potentially hazardous situation Avoid diving until the computer memory has which, if not avoided, may result in minor cleared from the preceding day’s dive. or moderate injury. It may also be used to When doing repetitive dives for several alert against unsafe practices. consecutive days, take at least one day off from diving every week. In the case of decompression-stop diving, it is recommended to take one day off from diving every three days. 27 Avoid planned decompression dives and do not dive deeper than 130 feet (40 meters) ƽ WARNING ƽ WARNING unless you have been specifically trained in NEVER dive deeper than 130 feet (40 m) or Never fly within 24 hours of your last dive, this type of technical diving. do planned decompression dives with the or in any case wait until the M2 <no-fly> Avoid repetitive “square profile” dives COMPUTER unless you are a trained and indication disappears. (dives to a single depth) deeper than 60 feet certified technical diver (IANTD, TDI, ANDI, Do not compress your M2 computer in a (18 meters). PSA, etc.) familiar with the skills and risks hyperbaric chamber. The instrument can be Always wait as long as possible before of deep air diving, and licensed at least seriously damaged if it is not submerged in water. flying after a dive (at least 12 and to the level of Deep Air diving for depths preferably 24 hours), in accordance with beyond 130 feet (40 m). Even with this level the recommendations of the Divers’ Alert of certification and experience, this type of Network. technical dive entails a much higher risk of DCS, regardless of the dive table or computer ƽ WARNING used. You must be aware of and willing to Recreational divers should NOT dive deeper accept these risks before attempting such than 40m (130 ft). Although this computer a dive. will continue to provide information for compressed-air dives deeper than 40m ƽ WARNING (130 ft.), the risk of nitrogen narcosis and NEVER dive alone. M2 cannot replace the decompression sickness (DCS) is greatly assistance provided by a diving buddy. increased; therefore this information should be treated as only approximate. ƽ WARNING MARES recommends that divers never exceed the NEVER use your COMPUTER or any other maximum permitted depth for their qualification. dive computer for repetitive “square profile” Diving below 130 feet (40 meters) or outside the dives (dives to the same or nearly the same no-decompression limits significantly increases depth) deeper than 60 feet (18 m). This is the risk of decompression sickness. an unsafe diving practice which will greatly Always ascend several minutes before going into increase your risk of DCS, regardless of what DEC mode, and allow yourself even more time your COMPUTER reads. in the case of cold water conditions, repetitive dives deeper than 60 feet (18 m), or for any dive involving unusually high exertion. Failure to do this will increase your risk of decompression sickness. 28 M2 DIVE COMPUTER QUICK GUIDE 1 <MODE> BUTTON. 2 <-> BUTTON. 3 DIVE - dive time. DIVE - temperature. CLOCK - year. LOGBOOK - dive n°. 4 DIVE - depth. ENGLISH DIVE - maximum depth. CLOCK - month. 5 DIVE - no decompression time remaining. DIVE - duration of the specified decompression stop. DIVE - total ascent time. CLOCK - date. Ascent rate indication in m/min or ft/min. 6 DIVE - % CNS O2. DIVE - % O2. CLOCK - hour. 7 DIVE - Decompression stop depth. BT - Dive time (seconds). CLOCK - minutes. 6+7 SURF - surface time. SURF - “no fly” time. SURF - desaturation time. Stop Mode indication, “StoP”. 8 % ascent rate. 9 Decompression stop depth indicators. 10 Omitted decompression stop indicator. 11 Uncontrolled ascent indicator. 12 Max % CNS O2 error indicator.