Specifications

ENTERING SETTINGS -SET MODE #1

TO SET - FO2 (while in the Surface Mode)

Factory set for Air, FO2 can also be set to values between 21 and

50% in increments of 1%. FO2 defaults to the Air setting whenever

the ATMOS

shuts off.

 Press Both buttons simultaneously, release when SET: 1 appears.

 Press and release the Advance (Front) button, FO2 appears with

the value flashing (Fig. 18).

 Press and release the Select (Bottom) button repeatedly to increase

the FO2 value 1% per press from 21 to 50%, then display 'Air'

again; - or - Press and hold the Select (Bottom) button to scroll di-

rectly to 32%, then press/hold again to scroll to 50% and back to

Air, release at desired value.

 For each FO2 value that appears, the lower portion of the display

indicates the Maximum Depth that can be achieved for a PO2 of

1.60 ATA (Fig. 19). If FO2 is set for Air, depth is not displayed.

 Press the Advance (Front) button to accept the setting and ad-

vance to Set Depth Alarm, or press and hold Both buttons for 2

seconds to revert to Surface Mode. The unit will automatically re-

vert to Surface Mode after 2 minutes of no button action.

Fig. 18 - Set FO2

Fig. 19 - FO2 = 32%