5 Maintenance
146 Keysight U1253B User’s and Service Guide
Introduction
General maintenance
Dirt or moisture in the terminals can distort readings. Cleaning procedures are
as follows:
1 Turn the multimeter off and remove the test leads.
2 Turn the multimeter 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 cotton swab
moistened with alcohol.
Any repair or service which is not covered in this manual should only be
performed by qualified personnel.
Ensure that terminal connections are correct for a particular measurement
before making the measurement. To avoid damaging the device, do not
exceed the rated input limit.
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