Agilent Technologies U1251A User's And Service Manual page 4

• 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.
• Do not use any other AC charger adaptor apart from the one certified by Agilent with this product.
• Do not use repaired fuses or short-circuited fuse-holders. For continued protection against fire, replace the
line fuses only with fuses of the same voltage and current rating and recommended type.
• Do not service or perform adjustments alone. Under certain condition, hazardous voltages may exist, even
with the equipment switched off. To avoid dangerous electric shock, service personnel must not attempt
internal service or adjustment unless another person, capable of rendering resuscitation or first aid, is present.
• Do not substitute parts or modify equipment to avoid the danger of introducing additional hazards. Return the
product to Agilent Technologies Sales and Service Office for service and repair to ensure the safety features
are maintained
• Do not operate damaged equipment as the safety protection features built into this product may have been
impaired, either through physical damage, excessive moisture, or any other reason. Remove power and do not
use the product until safe operation can be verified by service-trained personnel. If necessary, return the
product to Agilent Technologies Sales and Service Office for service and repair to ensure the safety features
are maintained.
• Turn off 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.
4 Agilent U1251A/U1252A User's and Service Guide