25
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 when-
ever the ATMOS ai shuts off.
Press Both buttons simultaneously, release when
SET: 1
ap-
pears.
Press and release the Advance (Front) button,
FO2
appears
with the value flashing (Fig. 18).
Press and release the Select (Bottom) button repeatedly to in-
crease the FO2 value 1% per press from 21 to 50%, then display
'Air' again; - or - Press and hold the Select (Bottom) button to
scroll directly 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 dis-
play 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
revert to Surface Mode after 2 minutes of no button action.
Fig. 18 - Set FO2
Fig. 19 - FO2 = 32%
