Dive Time Remaining (Dtr); No Decompression Dive Time Remaining (Dc) - Aeris Manta Operating Manual

DIVE TIME REMAI I G (DTR)
One of the most important pieces of information on AERIS dive computers is the
Dive Time Remaining numeric display.
The anta constantly monitors No Decompression status and Oxygen Accumula-
tion.
The Dive Time Remaining display will indicate the No Deco Time or O2 Time,
whichever Time is the least amount available.
o Decompression Dive Time Remaining ( DC)
NDC is the maximum amount of time that you can stay at your present Depth
before entering a Decompression situation. It is calculated based on the amount
of Nitrogen absorbed by hypothetical tissue compartments. The rates each of
these compartments absorb and release Nitrogen is mathematically modeled and
compared against a maximum allowable Nitrogen level. Whichever one is
closest to this maximum level is the controlling compartment for that Depth. Its
resulting value will be displayed numerically along with the TI E and NDC icons
(Fig. 64a) and graphically as the NIBG (Fig. 64b).
b
a
As you ascend from Depth following a dive that has ap-
proached the No Decompression Limit, the NIBG segments will
recede as control shifts to slower compartments. This is a
feature of the Decompression odel that is the basis for
ultilevel Diving, one of the most important features that AERIS
dive computers offer.
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