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Violation Gauge Mode (VGM)
Five minutes after reaching the surface from a dive in which a Delayed Violation occurred,
operation will enter VGM.
It will also enter VGM during a dive, if a Deco Stop of 70 FT (21M) or greater is required.
This situation would be preceded by entering Delayed Violation. The PDC would then
operate only as a digital depth gauge/timer without any nitrogen or oxygen calculations
or displays.
After surfacing, VGM does not provide the FO2, PDPS, Time to Fly, and Desat features. A
countdown timer is provided to inform you of the time remaining before normal operation
can resume with full features/functions.
A surface interval of 24 contiguous hours must be served before the all functions are re-
stored. If a dive is made during the 24 hour period, the countdown will reset to 24 hours.
UNEXPECTED LOSS OF DISPLAY
If your PDC stops working for any reason, it is important that you have anticipated this
possibility and are prepared for it. If not, wait 24 hours prior to using another PDC.
If you dive in situations where your trip would be ruined or your safety would be jeopar-
dized by losing the use of your PDC, a backup instrument system (used side by side with
the PDC), or use of standard air (or nitrox) tables is highly recommended.
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