IV U1241A/U1242A User’s and Service Guide
General Safety Information
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 of design, manufacture and intended use of the instrument. Agilent
Technologies assumes no liability for the customer’s failure to comply with these
requirements.
• Observe all markings on the instrument before connecting any
wiring to the instrument.
• When working above 60 VDC, 30 VAC RMS or 42 V peak, exercise
caution – such range pose a shock hazard.
• Do not measure more than the rated voltage (as marked on the
meter) between terminals, or between terminal and earth ground.
• Double-check the meter’s operation by measuring a known voltage.
• For current measurement, turn off circuit power before connecting
the meter to the circuit. Always place the meter in series with the
circuit.
• When connecting probes, always connect the common test probe
first. When disconnecting probes, always disconnect the live test
probe first.
• Detach test probes from the meter before you open the battery cover.
• Do not use the meter with the battery cover or part of the cover
removed or loose.
• Replace the battery as soon as the low battery indicator flashes
on screen. This is to avoid false readings, which may lead to possible
electric shock or personal injury.
• Do not operate the product in an explosive atmosphere or in the
presence of flammable gases or fumes.
• Inspect the case for cracks or missing plastic. Pay extra attention to
the insulation surrounding the connectors. Do not use the meter if it
is damaged.
• Inspect the test probes for damaged insulation or exposed metal,
and check for continuity. Do not use the test probe if it is damaged.
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