Keysight U1241B and U1242B User’s and Service Guide
5
WARNING
– 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 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 conditions,
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 Keysight
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 Keysight Technologies
Sales and Service Office for service and repair to ensure the safety
features are maintained.
CAUTION
– 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.
– Ensure proper insertion of battery in the multimeter, and follow the
correct polarity.
– You are advised to use low leakage batteries when changing to new
batteries. Please remember to remove the batteries when the multimeter is
not in use for a long period of time. Warning on the risk of battery leakage.
