Maintenance 5
Agilent U1251A/U1252A User’s and Service Guide 105
Replacing the Battery
The meter is powered by a 7.2 V battery. Use only the
specified type. To ensure that the correct battery type is
used, replace the battery immediately when the low battery
sign flashes. If your meter has the rechargeable battery type,
refer to the section “Charging The Battery”. The procedures
for battery replacement are listed below:
1 At the rear panel, turn the screw on the battery cover
from the LOCK to the OPEN position (counterclockwise).
Never discharge the battery by shorting it or by reverse polarity in any
subjects. Make sure that the battery is the rechargeable type before
charging it. Never rotate the rotary switch when the battery is being
charged as DC at 24 V is being applied to the charging terminals.
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