Specifications

ACTIVATION

To Activate the ATMOS

- press and release Advance (Front) button.

Backup Activation (only functional if the Water Activation feature is set ON)

As a backup, the ATMOS

will also automatically activate by water contact. This is accomplished

by bridging the gap between contacts located on the stems of the control buttons and back of the mod-

ule. The H2O graphic that will be displayed as an indication is described later. If the Water Activa-

tion feature (a user setting) is set OFF, the ATMOS

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 toler-

ance 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