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No Deco Safety Stop
If you have not entered Deco, a Safety Stop made between 10 and 20 FT (3 and 6 M) is
strongly recommended as a standard procedure before completing your ascent.
Depending on the model PDC that you have, the Safety Stop feature could provide a fixed
Stop Depth and Time, or you may be able to set them for a preferred depth and Time.
Some current models also allow you to select a Timer for use at a depth convenient to your
activities such as abord a charter vessel.
Fixed or set Stop Depth/Time:
Upon ascent to within 5 FT (1.5 M) deeper than the Stop Depth, on a No Deco dive in
which Depth exceeded 30 FT (9 M), Stop at the Depth set will be displayed with Stop Time
counting down to 0:00 (min:sec).
If you descend 10 FT (3 M) deeper than the Stop Depth during the countdown, or the
countdown reaches 0:00, the No Deco Main screen will replace the Stop screen which
will reappear upon ascent to within 5 FT (1.5 M) deeper than the Safety Stop Depth.
If you enter Deco during the dive, complete the Deco obligation, then descend below 30
FT (9 M); the Stop screen will appear again upon ascent to within 5 FT (1.5 M) deeper
than the Stop Depth.
If you ascend 2 FT (0.6 M) shallower than the Stop Depth prior to completing it, the Stop
will be canceled for the remainder of that dive.
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