User ManualTable of ContentsSuunto HelO2 User's Guide1Table of Contents31. WELCOME TO THE WORLD OF SUUNTO DIVING INSTRUMENTS51.1. Using HelO2 with Dive Manager and Dive Planner52. WARNINGS, CAUTIONS, AND NOTES63. SUUNTO HelO2 AT A GLANCE93.1. Navigating in the menus93.2. Button symbols and functions94. GETTING STARTED WITH YOUR SUUNTO HelO2114.1. TIME mode settings114.1.1. Setting the time114.1.2. Setting the date114.1.3. Setting the units114.1.4. Setting the backlight124.1.5. Setting the tones124.2. AC water contacts125. BEFORE DIVING135.1. Planning your dives135.2. The Suunto Technical RGBM135.3. Emergency ascents145.4. Dive computer limitations145.5. Mixed gas diving145.6. Audible and visual alarms155.7. Error conditions165.8. Wireless transmission175.8.1. Installing the wireless transmitter175.8.2. Pairing and code selection175.8.3. Transmitting data185.9. MIXED GAS DIVE mode settings195.9.1. Setting the gases195.9.2. Setting the depth alarm205.9.3. Setting the dive-time alarm205.9.4. Setting the personal/altitude adjustments205.9.5. Setting the sample rate215.9.6. Setting the tank pressure alarm215.9.7. Setting the tank pressure215.9.8. Setting the HP code215.9.9. Setting the units225.10. Activation and pre-checks225.10.1. Accessing DIVE mode225.10.2. DIVE mode activation225.10.3. Battery power indication235.10.4. Diving at altitude235.10.5. Personal adjustments245.11. Safety Stops255.11.1. Recommended Safety Stops255.11.2. Mandatory Safety Stops255.12. Deep stops266. DIVING276.1. Diving-related information276.1.1. Basic dive data276.1.2. Bookmark286.1.3. Ascent rate indicator286.1.4. Safety Stops286.1.5. Decompression dives28Ceiling, ceiling zone, floor and decompression range29Display below the floor30Display above the floor30Display at the ceiling zone30Display above the ceiling306.2. Diving in MIXED GAS mode316.2.1. Before diving in MIXED GAS mode31Default gas mix settings316.2.2. Oxygen and helium displays316.2.3. Oxygen limit fraction (OLF)326.2.4. Gas change and multiple breathing gas mixes326.3. Diving in GAUGE mode337. AFTER DIVING347.1. Surface interval347.2. Dive numbering347.3. Repetitive dive planning357.4. Flying after diving357.5. PLAN mode357.5.1. Dive Planning mode (PLANnodec)35Dive numbering shown during dive planning367.6. MEMORY mode367.6.1. Dive logbook (MEMLogbook)377.6.2. Dive history387.7. Suunto Dive Planner (SDP)387.8. Suunto Dive Manager (SDM)397.9. www.suuntosports.com and Suunto Diving World at www.suunto.com/diving398. CARE AND MAINTENANCE OF MY SUUNTO DIVING COMPUTER419. BATTERY REPLACEMENT439.1. Battery kit439.2. Required tools439.3. Replacing the battery439.4. Wireless transmitter battery replacement449.4.1. Transmitter battery kit459.4.2. Required tools459.4.3. Replacing the transmitter battery4510. TECHNICAL DATA4710.1. Technical specifications4710.2. RGBM4810.2.1. Suunto Technical RGBM decompression model4910.2.2. Diver safety and Suunto Technical RGBM model4910.2.3. Altitude diving5010.3. Oxygen exposure5011. INTELLECTUAL PROPERTY5111.1. Copyright5111.2. Trademark5111.3. Patent notice5112. DISCLAIMERS5212.1. User’s responsibility5212.2. CE5213. SUUNTO LIMITED WARRANTY FOR SUUNTO DIVING COMPUTERS AND SUUNTO DIVING COMPUTER ACCESSORIES5314. DISPOSAL OF THE DEVICE56GLOSSARY57Size: 2.11 MBPages: 64Language: EnglishOpen manual