a | The algorithm used is based upon Haldane’s theory using |
|
maximum allowable nitrogen 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 Fig. 65 - O2BG affiliate of PADI®, commissioned these experiments.
Oxygen Accumulation Time Remaining (OTR)
When FO2 is set for Nitrox, Oxygen Accumulation (saturation or exposure) during a dive, or 24 hour period, appears graphically as the O2 Bar Graph (Fig. 65a) when the Alternate (O2) screen is accessed.
As time remaining before reaching the Oxygen Exposure Limit decreases, segments are added to the O2 Bar Graph.
a | When the amount of time remaining before reaching the O2 |
Limit becomes less than NDC (No Deco Dive Time Remaining), | |
| calculations for that Depth will be controlled by O2. O2 Time |
| Remaining will then appear as Dive Time Remaining (Fig. 66a) |
| identified by the TIME and O2 icons. |
| As Oxygen Accumulation continues to increase, segments will |
| add to the O2 Bar Graph. |
Fig. 66 - O2 DIVE TIME |
|
REMAINING |
|
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