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17
POWER SUPPLY
The CompuMask utilizes (1) 3 volt, type CR2 Lithium Battery that
should provide 160 hours of operation over the temperature
ranges specified with the Backlight ON continuously while set for
maximum brightness (Level). The CompuMask checks its battery
voltage every 2 minutes during surface operation.
If the Mask's voltage decreases to the Warning level (2.75
volts), the Battery icon (shell with lid) will appear on
Surface displays (Fig. 2a) as an indication that the Battery
should be changed prior to commencing a series of dives.
If the Mask's voltage decreases to the Alarm level (2.50
volts), the Battery icon (shell with lid) will flash and the
CompuMask will shut Off.
Low Battery Warning/Alarm conditions are not displayed
during Dive Modes.
If a Mask Low Battery Condition was not displayed prior to
starting a Dive, and a Low Battery Condition occurs during
the dive, there will be sufficient Battery power remaining to
maintain operation for the remainder of that dive.
The Transmitter also uses (1) 3 volt, type CR2 Lithium Battery that
should provide normal operation for 1 year or 300 dive hours.
A Transmitter checks battery voltage when it is pressurized and
will send a Low Battery signal to the Receiver in the CompuMask
when the voltage drops below the Warning level.
Fig. 2 - LOW BATTERY
a
Summary of Contents for CompuMask
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