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Creating a Decompression Plan
You can create open-circuit decompression plans and save them for future dives.
1 Press START.
2 Select Plan Dive > Deco Plans > Add New.
3 Enter a name for the decompression plan.
4 Select an option:
• To enter the maximum partial pressure of oxygen in bars, select PO2.
NOTE: The device uses the PO2 value for gas switching.
• To enter your level of conservatism for decompression calculations, select Conservatism.
• To enter your gas blends, select Gases.
• To enter the depth of your last decompression stop, select Last Deco Stop.
• To enter the maximum dive depth, select Bottom Depth.
• To enter the time at the bottom depth, select Bottom Time.
5 Select Save.
Using Decompression Plans
1 Press START.
2 Select Plan Dive > Deco Plans.
3 Select a decompression plan.
4 Select an option:
• To view the decompression plan, select View.
• To use the decompression plan settings for a dive mode, select Apply.
• To change the decompression plan details, select Edit.
• To edit the name of the decompression plan, select Rename.
• To remove the decompression plan, select Delete > .
Altitude Diving
At higher altitudes, the atmospheric pressure is lower, and your body contains a larger amount of nitrogen than
it would at the start of a dive at sea level. The device accounts for altitude changes automatically using the
barometric pressure sensor. The absolute pressure value used by the decompression model is not affected by
the altitude or the gauge pressure displayed on the watch.
Tips for Wearing the Device with an Exposure Suit
• Use the extra long silicone diving band to wear the device over a thick exposure suit.
• For accurate heart rate measurements, make sure that the device stays in contact with your skin and does
not bump into other wrist-worn devices (Wearing the Watch, page64).
• If you are wearing the device over an exposure suit, turn off the wrist-based heart rate monitor to increase
battery life (Wrist Heart Rate Monitor Settings, page65).
20 Diving
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