Oceanic DataMax Pro, Owner'S Manual

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14
Fig. 12 – Alternate Dive Mode
time display also reaches zero and switches to Decompression time (Fig. 13b).
The Mode Label changes from “NO DEC” to “DEC” under the Dive Time
Remaining display. Decompression Dive Mode numerically displays Dive #,
Depth, Total Decompression Time, and Tank Pressure. Besides continuing
to display the Tank Pressure and VARI bar graphs, the Graphic Diver
Interface displays the TLBG, that now act as a Decompression “ceiling”
indicator. Decompression time displays the total number of minutes required
at all ceilings combined. The TLBG displays the ceiling depth that you must
stay below.
When the Audible Alarm alerts you of entry into decompression, you
must immediately change the focus of your dive to getting back to the sur-
face. Upon hearing the alarm and seeing the TLBG enter the 10 FT. STOP
zone, you should immediately go to a depth slightly deeper than or equal to
10 feet. 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 place the DataMax Pro into a Conditional Violation Mode, and
greatly increase your risk of decompression sickness. Often while
coping with surge and swell, it is difficult to stay at a chosen depth. To
ensure that you do not enter a violation mode you should stay close to, but no
shallower than, the decompression ceiling depth. If the DataMax Pro re-
quires a 10, 20 or 30 foot decompression ceiling, you should stay deeper than
the depth indicated until the TLBG recedes into the next shallower zone.
When that occurs, you can ascend to, but not shallower than, the new ceiling.
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