Suunto HELO2 manual Welcome to the World of Suunto Diving Instruments

1. WELCOME TO THE WORLD OF SUUNTO DIVING INSTRUMENTS ................ 5

1.1. Using HelO2 with Dive Manager and Dive Planner ................................. 5

2. WARNINGS, CAUTIONS, AND NOTES ................................................... 6

3. SUUNTO HelO2 AT A GLANCE ............................................................ 9 3.1. Navigating in the menus ............................................................... 9

3.2. Button symbols and functions ......................................................... 9

4. GETTING STARTED WITH YOUR SUUNTO HelO2 ................................... 11 4.1. TIME mode settings ................................................................... 11

4.1.1. Setting the time .................................................................. 11 4.1.2. Setting the date .................................................................. 11 4.1.3. Setting the units .................................................................. 11 4.1.4. Setting the backlight ............................................................. 12 4.1.5. Setting the tones ................................................................. 12

4.2. AC water contacts ..................................................................... 12

5. BEFORE DIVING ........................................................................... 13 5.1. Planning your dives ................................................................... 13 5.2. The Suunto Technical RGBM ........................................................ 13 5.3. Emergency ascents ................................................................... 14 5.4. Dive computer limitations ............................................................. 14 5.5. Mixed gas diving ....................................................................... 14 5.6. Audible and visual alarms ............................................................ 15 5.7. Error conditions ........................................................................ 16 5.8. Wireless transmission ................................................................. 17

5.8.1. Installing the wireless transmitter .............................................. 17 5.8.2. Pairing and code selection ...................................................... 17 5.8.3. Transmitting data ................................................................ 18 5.9. MIXED GAS DIVE mode settings ................................................... 19 5.9.1. Setting the gases ................................................................ 19 5.9.2. Setting the depth alarm ......................................................... 20 5.9.3. Setting the dive-time alarm ..................................................... 20 5.9.4. Setting the personal/altitude adjustments ..................................... 20 5.9.5. Setting the sample rate .......................................................... 21 5.9.6. Setting the tank pressure alarm ................................................ 21 5.9.7. Setting the tank pressure ....................................................... 21 5.9.8. Setting the HP code ............................................................. 21 5.9.9. Setting the units .................................................................. 22 5.10. Activation and pre-checks .......................................................... 22 5.10.1. Accessing DIVE mode ......................................................... 22 5.10.2. DIVE mode activation .......................................................... 22 5.10.3. Battery power indication ....................................................... 23 5.10.4. Diving at altitude ................................................................ 23 5.10.5. Personal adjustments .......................................................... 24 5.11. Safety Stops .......................................................................... 25 5.11.1. Recommended Safety Stops .................................................. 25 5.11.2. Mandatory Safety Stops ....................................................... 25 5.12. Deep stops ............................................................................ 26

6. DIVING ....................................................................................... 27 6.1. Diving-related information ............................................................ 27 6.1.1. Basic dive data ................................................................... 27 6.1.2. Bookmark ......................................................................... 28 6.1.3. Ascent rate indicator ............................................................. 28 6.1.4. Safety Stops ...................................................................... 28

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