Oceanic Data Mask Operating Manual - page 103
103
Fig. 91 - GAU SURF ALT
Depress/hold the A (Top) button for 2 seconds to access the
SET menu (G > F > A > U > T).
NOTE: Once a dive is conducted in GAU Operat-
ing Mode, you must wait 24 hours after surfac-
ing before the DataMask resets and will operate
in NOR Mode (Air or Nitrox) or FRE Dive Mode.
GAU SURF ALT, information includes (Fig. 91) -
> Altitude level graphic EL - 2 to EL - 7 (when > 3,000 feet)
> Time of Day (hr:min)
> Graphic Am or Pm, if set for 12 Hour Format
> Temperature with degrees icon and graphic F (or C)
Press the S (Side) button to toggle the Backlight.
Press/release the A (Top) button as necessary to access FLY, LOG, and HISTORY,
similar to NOR Mode.
> The display will revert to the MAIN Display after 5 seconds if A is not pressed.
Upon descending to 5 FT (1.5 M), the DataMask will enter GAU DIVE Mode.