Specifications

40
NO DECOMPRESSION DIVE MODE
As long as it is activated on the surface, the 500AI will enter the No Decom-
pression Dive Mode when you descend deeper than 5 feet (1.5 meters), regard-
less of the operating mode it is in.
To activate the backlight at any time* during a dive, press the Select (Right)
button. The display will be illuminated as long as the button is depressed plus
5 seconds after it is released.
*The backlight will not activate during a Low Battery condition.
No Decompression Dive Mode Main Display (Fig. 40)
Information includes - Current Depth (a), the No Decompression Dive Mode
icon, Dive Time Remaining (b) and icon, Maximum Depth (c) and icon, Elapsed
Dive Time (d) and icon, Breathing Gas Time Remaining (e) and icon, and the
applicable bar graphs.
No Decompression Dive Mode Alternate Display (Fig. 41)
To view an Alternate Display during a dive, press the Advance (Left) button.
Information includes - Temperature, Time of Day, current value of PO2 (if a
nitrox dive), Tank Pressure, and the applicable bar graphs.
Fig. 41 - Alternate Display
Fig. 40 - Dive Mode (Main)
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