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ADDITIONAL INFORMATION PERTAINING TO FREE DIVE MODE
Although breathing apparatus is not utilized for FREE Dive activities, nitrogen tissue
loading remains a factor. Nitrogen loading is calculated based upon a fixed FO2 of
AIR.
Since a user has the option of alternating between NORM (SCUBA) and FREE Dive
activities within a 24 hour period, nitrogen calculations and the displayed value of
No Deco Dive Time Remaining (NDC Time) are carried over from one operating mode
to the other, which permits the user to maintain awareness of nitrogen absorption
and offgasing status.
The mathematical models currently used in the OC1 are based on no decompression/
decompression multilevel repetitive dive schedules.
These algorithms do not take into account the physiological changes associated with
the high pressures that competitive type Free diving can expose a diver to.
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