Genesis resource pro, Руководство пользователя

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DIVE TIME REMAINING
One of the most important pieces of information on the Resource Pro is the patented Dive Time
Remaining numeric display. To numerically display Dive Time Remaining, the Resource Pro
constantly monitors no decompression status. This unique feature has been granted U.S. Patent
No. 4,586,136.
No Decompression Dive Time Remaining
No Decompression Dive Time Remaining (NDL) 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 twelve 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 of the twelve is closest to this maximum
level is the controlling compartment for that depth. Its resulting value will be displayed numeri-
cally with the NDL symbol (Fig. 52a) and graphically as the Nitrogen Bar Graph.
As you ascend from depth following a dive that has approached the no decompression limit, the
Nitrogen Bar Graph will recede as control shifts to slower compartments. This is a feature of the
decompression model that is the basis for multilevel diving, one of the most important advan-
tages the Resource Pro offers.
The no decompression algorithm is based upon Haldane’s theory using maximum allowable ni-
trogen levels developed by Merrill Spencer. Repetitive diving control is based upon experiments
designed and conducted by Dr. Ray Rogers and Dr. Michael Powell in 1987. Diving Science and
Technology
®
(DSAT), a corporate affiliate of PADI
®
, commissioned these experiments.
Fig. 52 - No Deco Dive Time
Remaining
a