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UMG 96-PA / UMG 96-PA-MID / UMG 96-PA-MID+
17.6 Clock/Battery
The supply voltage supplies the internal clock of
the meter. If the supply voltage fails, the battery
takes over the supply of voltage to the clock. The
clock provides date and time information, for ex-
ample for recordings and min. and max. values.
The life expectancy of the battery is at least 5
years at a storage temperature of +45° C. The
typical battery life is 8 to 10 years.
The battery can be replaced via the battery insert
on the bottom of the device.
When replacing the
battery, make sure that the battery type and
polarity are correct
(positive pole points to the
rear of the device; negative pole points to the front
of the device)!
Pay attention to the following when replacing the
battery:
NOTE
Grease or dirt on the contact surfaces forms a
contact resistance which shortens the service
life of the battery. Only touch the battery by the
edges.
WARNING
Risk of injury due to electrical voltage!
Severe bodily injury or death can result from:
·Touching bare or stripped leads that are ener-
gized.
·Device inputs that pose a hazard when
touched.
Observe the following when handling your
device and when changing the battery,
before
starting work:
·
Disconnect the system/device from the
power supply!
·
Secure it against being switched on!
·
Check to be sure it is de-energized!
·
Ground and short circuit!
·
Cover or block off adjacent live parts!
