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ACTIVATION
To Activate the ATMOS ai - press and release Advance (Front) button.
Backup Activation (only functional if the Water Activation feature is set ON)
As a backup, the ATMOS ai will also automatically activate by water contact. This is accom-
plished by bridging the gap between contacts located on the stems of the control buttons and back
of the module. The H2O graphic that will be displayed as an indication is described later. If the
Water Activation feature (a user setting) is set OFF, the ATMOS ai will only activate by push
button and only if shallower than 4 feet (1.2 meters) depth.
Upon manual activation, the unit will enter Diagnostic Mode (Fig. 13), displaying all segments
of the LCD (as 8's), followed by dashes, then a countdown from 9 to 0. The Backlight will be
on.
Diagnostic Mode checks the display and battery voltage to ensure that everything is within tol-
erance and functioning properly. The Battery icon will be displayed during Diagnostic Mode.
It will also check the ambient barometric pressure and at eleva-
tions of 2,000 feet (610 meters) or higher, it will recalibrate itself
to measure depth in feet of fresh water instead of feet of sea water.
If values are acceptable, the unit will enter Surface Mode. If any
value is not acceptable, the unit will shut down in 5 seconds.
If no dive is made within 2 hours after initial activation, the unit
will automatically deactivate. If the wet contacts are still bridged,
the unit will then reactivate and display the H2O graphic.
Fig. 13 - Diagnostic Mode
