Specifications

As depth increases during a dive, the partial pressure of oxygen

(PO2) increases. When PO2 becomes equal to, or greater than, 1.40

ATA, or 0.2 ATA less than the PO2 Alarm set point (a user set-

ting); the red LED will flash, Audible Alarm will sound (unless set

OFF), and the current PO2 value, PO2 symbol, O2 segment of the

O2 Bar Graph, and UP Arrow will appear on the Main Display as a

warning until PO2 decreases. Current Depth and Dive Time Re-

maining will also be displayed (Fig. 97).

If PO2 continues to increase, the value displayed will increase to-

ward a maximum value of 5.00 ATA in increments of .01 ATA.

When it reaches a value of 1.60 ATA, or the PO2 Alarm set point

(a user setting), the red LED will flash, the Audible Alarm will

sound (unless set OFF) again, and the current PO2 value, PO2 sym-

bol, O2 segment of the O2 Bar Graph, and UP Arrow will flash as a

warning until PO2 decreases (Fig. 60).

While in High PO2 Mode, the Alternate Displays previously de-

scribed can be accessed using the Advance (Front) button, and the

Backlight can be activated using the Select (Bottom) button.

NOTE: While in High PO2 Mode, the ATMOS

will

automatically revert to the Main Display after 3 sec-

onds unless the Advance (Front) button is pressed

to view another display of information.

Fig. 59 - PO2 Warning

Fig. 60 - PO2 Alarm