Operation Manual

HIGH PO2

When partial pressure of oxygen (PO2) becomes equal to, or greater than, 0.2 (ATA) less

than the PO2 Alarm value set; the Audible will sound. Note that while in Deco, High PO2

will only alarm at 1.60.

• Press/release the S button to acknowledge the alarm.

> The graphic PO2 and Up Arrow icon will be displayed flashing on the Main screen

(Fig. 67) until the audible is silenced, then the graphic PO2 will alternate with NDC

time until PO2 decreases to 0.2 below the alarm Set Point.

> The value of PO2 can be viewed on the ALT 2 screen.

• Press/release the A button to view the ALT screens.

• Depress the M button for 2 seconds to access the Gas Switch routine.

• Depress the S button for 2 seconds to activate the Backlight.

> If PO2 continues to increase, the value (displayed on the

ALT screen) will increase in increments of .01 (ATA).

> When PO2 reaches the Alarm Set Point, the Audible Alarm

will sound again.

> The Up Arrow icon will flash on the Main screen until PO2

decreases to 0.2 (ATA) below the alarm Set Point.

> If High PO2 (= > 1.60) occurs while in Deco, the graphic

PO2 will be displayed in place of TAT until PO2 decrease

below 1.60. The Up Arrow will not indicate ascent.

Fig. 67 - HIGH PO2 MAIN

(during audible)