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Timer use set On:
Upon ascending to 20 FT (6 M) on a No Deco dive in which Depth exceeded 30 FT (9
M), a Run Timer will appear displaying 0:00 (min:sec) until started.
If you descend deeper than 30 FT (9 M), the No Deco Main will replace the Timer screen
which will reappear upon ascent to 20 FT (6 M).
If you ascend above 10 FT (3 M), or enter Deco, or a High O2 alarm condition occurs
(100%), while the Timer is active, the Timer will be disabled for the remainder of that dive.
There is no Penalty if you surface prior to completing the Safety Stop.
VARI (Variable Ascent Rate Indicator™)
Most all Oceanic PDCs are configured with a VARI (bar graph) that shows how fast you
are ascending. When you exceed the maximum ascent rate allowed for the depth you are
at, the VARI will enter the Alarm (Too Fast) zone and you will be alerted by all segments
flashing which will stop when your ascent rate is slowed.
DECOMPRESSION
Oceanic PDCs are sophisticated instruments designed with capabilities that go beyond
the range of recreational diving with compressed air. They can help you to avoid and, if
necessary, manage decompression.
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