Oceanic OC1 - Page 109

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Fig.100-PO2WARNING
(duringAudible)
Fig.101-PO2ALARMMAIN
> After Audible - NDC is restored, Up Arrow icon solid until
PO2 decreases below .20 less than the Alarm Set Point.
If PO2 continues to increase and reaches the PO2 Alarm Set
Point, the Audible sounds again.
> The PO2 value with graphic PO2 and Up Arrow icon will
flash until PO2 decreases below the Alarm Set Point.
PO2 Alarm Main, information includes (Fig. 101) -
> Up Arrow icon, flashing until < Set Point, then solid
> Current Depth with FT (or M) icon
> PO2 value (ATA) with graphic PO2, flashing until < Set
Point, then solid
> ATR (min) when 60 minutes or less with graphic ATR and
Time (clock) icon, blank if no TMT
> Graphic GAS1 (or 2 or 3), one in use
> Pressure with PSI (or BAR) and Link icons, if Rcvr and TMT
are active, flashing when Link is lost
> Nx icon
> TLBG with NI icon
> VARI while ascending
• A (< 2 sec) to access ALTs
• S (< 2 sec) to acknowledge alarms
• S (2 sec) to access Compass
• M (2 sec) to access Gas Switching (or Bud Press Check)
• L (closure) to activate Backlight