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UWATEC Digital 330m - English
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4 Surface functions
4.1 Surface mode
At a depth of 1.2 m / 4 ft or less, the display shows “---”. Upon completion of a
dive, this is displayed for 5 minutes after which the Digital 330m switches into
surface mode. In this mode, the Digital 330m shows SURFACE and the surface
interval on the screen. The surface interval will be indicated until it has reached
24 hours or until another dive is performed. In surface mode, the Digital 330m
indicates air temperature.
After 3 minutes without operation, the Digital 330m switches off to preserve bat-
tery energy. However, the surface interval keeps running in the background.