Table of Contents
Advertisement
Safety Considerations
Read the information below before using this instrument.
The following general safety precautions must be observed during all phases of operation,
service, and repair of this instrument. Failure to comply with these precautions or with
specific warnings elsewhere in this manual violates safety standards for design,
manufacture, and intended use of the instrument. Keysight Technologies assumes no
liability for the customer's failure to comply with these requirements.
– Do not exceed any of the measurement limits defined in the specifications to avoid
WARNING
– Do not use the multimeter if it is damaged. Before you use the multimeter, inspect the
– Inspect the test leads for damaged insulation or exposed metal. Check the test leads
– Do not operate the multimeter around explosive gas, vapor, or wet environments.
– Do not apply more than the rated voltage (as marked on the multimeter) between
– Never use the multimeter in wet conditions or when there is water on the surface. If
– Before use, verify the multimeter's operation by measuring a known voltage.
– When measuring current, turn off the circuit power before connecting the multimeter
– When servicing the multimeter, use only the specified replacement parts.
– Use caution when working above 60 V DC, 30 V AC rms, or 42.4 V peak. Such voltages
– 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
– 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
– To avoid false readings, which may lead to possible electric shock or personal injury,
– Only probe assemblies with Measurement Category III or IV ratings should be used for
4
instrument damage and the risk of electric shock.
case. Look for cracks or missing plastic. Pay particular attention to the insulation
surrounding the connectors.
for continuity. Replace damaged test leads before you use the multimeter.
terminals, or between terminal and earth ground.
the multimeter is wet, ensure that the multimeter is dried only by trained personnel.
in the circuit. Remember to place the multimeter in series with the circuit.
pose a shock hazard.
disconnect the leads, disconnect the live test lead first.
or loosened.
replace the battery as soon as the low battery indicator appears and flashes.
mains measurements.
Keysight U1281A/U1282A User's Guide
Advertisement
Table of Contents
