Tusa Element II, Owner'S Manual

Page: 70 / 116

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M A
S
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)