Oceanic DATA PLUS Owner's Manual page 59

DataPlus
ascending any further, or you will increase your risk of decompression
sickness.
The amount of decompression credit time you receive is dependent on depth,
with slightly less credit given the deeper you are. Still, you must never
ascend shallower than your decompression ceiling. Doing so will greatly
increase your risk of decompression sickness and place the DataPlus into
a Conditional Violation Mode described later. When coping with surge and
swell, it may be difficult to stay at an exact depth. You should stay slightly
deeper (Fig. 58a) than the required stop depth indicated (Fig. 58b) until the next
shallower stop depth appears. Then, you can ascend to, but not shallower than,
a
that indicated ceiling stop depth.
b
Once you have performed the required decompression, the DataPlus will switch
FT
to No Decompression Dive Mode, allowing additional time underwater. Though
more time is theoretically available, it is strongly recommended that you spend
FT
the remainder of the dive continuing to decompress at a safety stop slightly
deeper than or equal to 10 feet (3 meters). This will let the TLBG recede further
into the yellow caution (C.Z.) zone or green no decompression (NO DECO) zone.
DATA
PLUS
GLO
During a dive in which you inadvertently enter decompression, you must focus
on reducing your tissue nitrogen loading as much as possible - by spending as
much time as you can at your final safety stop.
Fig. 58 - Decompression Stop
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