UNI-T UT58A, Руководство по эксплуатации

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Rules For Safe Operation (2)
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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, test clips and temperature
probe 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.
Warning
To avoid possible electric shock or personal injury,
and to avoid possible damage to the Meter or to the
equipment under test, adhere to the following rules:
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Before using the Meter inspect the case. Do not
use the Meter if it is damaged or the case (or part
of the case) is removed. Look for cracks or missing
plastic. Pay attention to the insulation around the
connectors.
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Inspect the test leads for damaged insulation or
exposed metal. Check the test leads for continuity.
Replace damaged test leads with identical model
number or electrical specifications before using
the Meter.
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Do not apply more than the rated voltage, as
marked on the Meter, between the terminals or
between any terminal and grounding.
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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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If the value to be measured is unknown, use the
maximum measurement position and reduce the
range step by step until a satisfactory reading is
obtained.
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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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Model UT58A/B/C: OPERATING MANUAL