Keysight U1281A - Page 5

Keysight U1281A/U1282A Service Guide 5
WARNING
– When using the probes, keep your fingers behind the finger guards on the
probes.
– Connect the common test lead before you connect the live test lead.
When you disconnect the leads, disconnect the live test lead first.
– Remove the test leads from the multimeter before you open the battery
cover.
– Do not operate the multimeter with the battery cover or portions of the
cover removed or loosened.
– To avoid false readings, which may lead to possible electric shock or
personal injury, replace the battery as soon as the low battery indicator
appears and flashes.
– Only probe assemblies with Measurement Category III or IV ratings
should be used for mains measurements.
CAUTION
– Disconnect circuit power and discharge all high-voltage capacitors
before testing resistance, continuity, diodes, or capacitance.
– Use the proper terminals, function, and range for your measurements.
– This multimeter is for use at altitudes of up to 3000 m.
– Never measure voltage when the current measurement is selected.
– Always use the specified battery type. The power for the multimeter is
supplied with four standard 1.5 V AA batteries. Observe the correct
polarity markings before you insert the batteries to ensure proper
insertion of the batteries in the multimeter.