High Po2 Dive Mode; High Oxygen Accumulation - Oceanic DATA PLUS Owner's Manual

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Fig. 66 - High PO2
(=/> 1.40 ATA)
FT
Fig. 67 - High PO2
(=/> 1.60 ATA)
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HIGH PO2 DIVE MODE

The Data Plus 2 enters the High PO2 Dive Mode when partial pressure of oxy-
gen becomes equal to, or greater than, 1.40 ATA. The current PO2 value and
the symbol 'PO2' will appear in the center portion of the display (Fig. 66). If
the Alternate Display is set to ON, they replace Max Depth and Elapsed Dive
Time. They will remain on display until partial pressure of oxygen decreases
below a value of 1.40 ATA.
If partial pressure of oxygen continues to increase, the value of PO2 displayed
will increase from 1.40 ATA toward a maximum value of 5.00 ATA in incre-
ments of '.01' ATA. When PO2 reaches a value of 1.60 ATA, the large red seg-
ment of the O2 bar graph, the PO2 value, and PO2 symbol will flash continu-
ously as a warning (Fig. 67) until the level of PO2 decreases below 1.60 ATA.

HIGH OXYGEN ACCUMULATION

The O2 bar graph provides you with a convenient graphic representation of
your oxygen accumulation, displaying either oxygen accumulated during that
dive, or during your repetitive dives conducted during that 24 hour period,
whichever of the two is greater at that time.
The yellow Caution Zone of the O2 Bar Graph offers you a convenient way to
consistently monitor how close you are coming to the limits of oxygen toler-