30 U1241B/U1242B User’s and Service Guide
4 Service and Maintenance
General Maintenance
Besides the above hazard, dirt or moisture in the terminals can distort
readings. Cleaning steps are as follows:
1 Turn the meter off and remove the test leads.
2 Turn the meter over and shake out any dirt that may have accumulated
in the terminals.
3 Wipe the case with a damp cloth and mild detergent — do not use
abrasives or solvents. Wipe the contacts in each terminal with a clean
swab dipped in alcohol.
Battery Replacement
The meter is powered by 6.0 V (1.5 V x 4 batteries) which must be the
specified battery type. To ensure that the meter performs as specified, it
is recommended that you replace the battery as soon as the low battery
indicator is flashing. See the following procedures for battery replacement:
1 At the rear panel, lift up the stand.
2 Loosen the screw on the battery cover.
3 Lift and remove the battery cover.
4 Replace the specified batteries, ensure the correct polarity of batteries.
5 Reverse the procedures of opening the cover to close the battery cover.
To avoid electrical shock or damage to the meter, ensure no water stays inside the
casing.
Do not discharge the battery by shorting the battery or reverse the battery polarity in any
subjects.
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