40
HIGH PO2
As Depth increases during a dive, the partial pressure of oxygen
(PO2) increases. When PO2 increases to 0,20 ATA less than the
PO2 Alarm setting (a SET 1 selection), the current PO2 value and
graphic PO2 will appear solid as a Warning on the NORM DIVE
MAIN Display (Fig. 42) until PO2 decreases to 0,30 ATA less than
the Alarm setting.
When PO2 increases to the PO2 Alarm setting, the Audible Alarm
will sound (unless set OFF) and the current PO2 value and graphic
PO2 will flash (Fig. 43) until PO2 decreases below the Alarm set-
ting.
> Press/hold the A (Advance/Left) button for 2 seconds to ac-
knowledge/silence the Audible Alarm.
> Press/release the S (Select/Right) button (< 2 seconds) to acti-
vate the Backlight for the Duration Time set.
> Press/release the A (Advance/Left) button (< 2 seconds) to ac-
cess the Chrono Start/Stop display, if set ON. The display will
revert to the High PO2 Main screen after 30 seconds unless the
A button is pressed/released to access the ALT 1 screen.
> Press/release the A (Advance/Left) button again (< 2 seconds)
to access ALT 1 (Temperature, Time of Day) for 3 seconds.
Fig. 43 -HIGH PO2 ALARM
Fig. 42 -HIGH PO2 WARNING
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