WARNING: YOUR ACTUAL ASCENT TIME MAY BE LONGER THAN DISPLAYED BY THE
DIVE COMPUTER! The ascent time will increase if you: (1) remain at depth, (2) ascend slower
than 10 m/min (33 ft/min), (3) make your decompression stop deeper than at the ceiling,
and/or (4) forget to change the used gas mixture. These factors might also increase the
amount of breathing gas required to reach the surface.
NOTE: Diving with multiple gases and dismissing a gas switch prompt will provide you
with inaccurate Time to surface values and longer decompression stops than predicted.
The ceiling value indicates the
first decompression stop depth.
You can set the last stop depth to 3.0 m or 6.0 m (the default depth is 3.0 m) in the Algorithm
settings. See 5.7.6. Last stop depth.
On a decompression dive, dierent stop types can be present:
•
Decompression stop: A compulsory stop if diving with a Stepped decompression
profile
(see 5.7.3. Deco profile). Decompression stops occur at fixed 3 m (10 ft) intervals.
•
Safety stop: A recommended three-minute stop for every dive over 10 m (33 ft). Staying
longer at the last decompression stop may shorten the safety stop. Safety stop is always
non mandatory for decompression dives.
There is a decompression window at 3 m (9,8 ft) between the decompression floor and
decompression ceiling. The closer to the ceiling you stay, the more optimal the
decompression time is.
When you ascend close to the ceiling depth and enter the decompression window area, two
arrows appear next to the depth number.
If diving with a Stepped deco
profile, a timer will start the countdown when entering the
decompression window and the ceiling is the same for a specific time and then moves
upwards 3 m (9.8 ft) at a time.
Inside the decompression window (Stepped
profile):
In the Continuous ascent mode, the ceiling is constantly decreasing while you are near the
ceiling depth, providing continuous decompression with optimum ascent time.
Inside the decompression window (Continuous profile):
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