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• Press READ/ /TIMER to enter in the
factory calibration restore screen. The
instrument asks for confirmation of user
calibration delete.
• Press ZERO/CFM to restore the factory
calibration or press GLP/
again to
abort factory calibration restore.
• The instrument briefly indicates “donE”
upon restoration of factory calibration prior
to returning to
measurement mode
.
BATTERY MANAGEMENT
To save battery, the instrument shuts down after 10 minutes of non-use in
measurement mode
and after 1 hour of non-use in
calibration mode.
If a valid measurement was displayed before
auto-shut off, the value is displayed when
the instrument is switched on. The blinking
“ZERO” means that a new zero has to be
performed.
One fresh battery lasts for around 750 measurements, depending on the light level.
The remaining battery capacity is evaluated at the instrument startup and after each measurement.
The instrument displays a battery indicator with three levels as follows:
• 3 lines for 100 % capacity
• 2 lines for 66 % capacity
• 1 line for 33 % capacity
• Battery icon blinking if the capacity is under 10 %.
If the battery is empty and accurate measurements can’t be taken anymore, the instrument
shows “dEAd bAtt” and turns off.
To restart the instrument, the battery must be replaced with a fresh one.
Distributed by Applied Membranes, Inc.
www.appliedmembranes.com
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