Oceanic Watch / Dive Computer GEO Manual De Usuario

The algorithm used is based upon Haldanes 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

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 Alter-

nate (O2) screen is accessed.

As time remaining before reaching the Oxygen Exposure Limit

decreases, segments are added to the O2 Bar Graph.

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. 65 - O2BG

Fig. 66 - O2 DIVE TIME

REMAINING