UNI-T UT39E Operating Manual page 4

Model UT39E: OPERATING MANUAL
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The rotary switch should be placed in the right
position and no any changeover of range shall be
made during measurement is conducted to prevent
damage of the Meter.
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When the Meter working at an effective voltage
over 60V in DC or 30V rms in AC, special care
should be taken for there is danger of electric
shock.
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Use the proper terminals, function, and range for
your measurements.
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Do not use or store the Meter in an environment
of high temperature, humidity, explosive,
inflammable and strong magnetic field. The
performance of the Meter may deteriorate after
dampened.
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When using the test leads, keep your fingers behind
the finger guards.
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Disconnect circuit power and discharge all high-
voltage capacitors before testing resistance,
continuity, diodes, capacitance or current.
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Before measuring current, check the Meter's fuses
and turn off power to the circuit before connecting
the Meter to the circuit.
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Replace the battery as soon as the battery indicator
appears. With a low battery, the Meter might
produce false readings that can lead to electric
shock and personal injury.
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Remove test leads from the Meter and turn the
Meter power off before opening the Meter case.
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When servicing the Meter, use only the same model
number or identical electrical specifications
replacement parts.
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The internal circuit of the Meter shall not be altered
at will to avoid damage of the Meter and any
accident.
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Soft cloth and mild detergent should be used to
clean the surface of the Meter when servicing. No
abrasive and solvent should be used to prevent
the surface of the Meter from corrosion, damage
and accident.
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The Meter is suitable for indoor use.
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Turn the Meter power off when it is not in use and
take out the battery when not using for a long time.
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Constantly check the battery as it may leak when
it has been using for some time, replace the battery
as soon as leaking appears. A leaking battery will
damage the Meter.
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