30 U1241A/U1242A 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), and use only specified
battery. To ensure the specification specified, it is suggested to replace
battery immediately when the sign of low battery is displayed and
flashing. See the following procedures for battery replacement:
1 At the rear panel, turn the stand to up side.
2 Unscrew the battery cover, notice the screw may not remove as loosed.
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.
To avoid instruments being damage from battery leakage:
• Always remove dead batteries immediately.
• Always remove the batteries and store them separately if the multimeter is not
going to be used for a long period.
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