Oceanic Data Mask, Operating Manual

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 Pressing the A (Top) button momentarily (< 2 sec) will accept the ON or OFF Set Point
which will stop flashing.
> If set OFF, operation will revert to the FRE SURF MAIN screen, bypassing SET FDA 2
and 3.
> If set ON, the Depth value displayed will start flashing.
 Pressing and releasing the S (Side) button momentarily and repeatedly (< 2 seconds
each time) will step through the Set Points from 30 to 330 FT (10 to 100 M) in
increments of 10 FT (1 M) at a rate of 1 Set Point per press of the button.
 Pressing and holding the S (Side) button will scroll through the Set Points at a rate of 4
Set Points per second until released.
 Pressing the A (Top) button momentarily (< 2 sec) will accept the Depth Set Point and
advance to SET FDA 2.
 Depressing the A (Top) button for 2 seconds, or if no button is pressed during a
period of 2 minutes, will revert to the FREE SURF MAIN screen.
SET FDA 2, information includes (Fig. 102) -
> Depth Alarm value with FT (or M) and MAX icons
> Graphic FdA2 (meaning FREE Depth Alarm 2)
> Set Point ON or OFF, flashing
 Pressing and releasing the S (Side) button momentarily (< 2
seconds) will toggle the Set Point between ON and OFF.
 Pressing the A (Top) button momentarily (< 2 sec) will
accept the ON or OFF Set Point which will stop flashing.
Fig. 102 - SET FDA 2