Keysight U3401A User’s and Service Guide
5
WARNING
– Do not substitute parts or modify multimeter 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 multimeter 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, functions, and range for your instruments.
– Do not measure voltage when current measurement is selected.
– Use the multimeter with the cables provided.
– Repair or service that is not covered in this manual should only be
performed by qualified personnels.
