IV Agilent U1251B/U1252B User’s and Service Guide
Safety Information
This meter is safety-certified in compliance with EN/IEC 61010-1:2001, UL
61010-1 Second Edition and CAN/CSA 22.2 61010-1 Second Edition, CAT
III 1000 V/ CAT IV 600 V Overvoltage Protection, Pollution Degree II. Use
with standard or compatible test probes.
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.
• Turn off the circuit power and discharge all high-voltage capacitors in the circuit before
you perform resistance, continuity, diodes, or capacitance tests.
• Use the correct terminals, function, and range for your measurements.
• Never measure voltage when current measurement is selected.
• Use only recommended rechargeable battery. Ensure proper insertion of battery in the
meter, and follow the correct polarity.
• Disconnect test leads from all the terminals during battery charging.
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