Specifications

Safety Rules
l Use the Meter only as specified in this
manual, otherwise the protection provided
by the Meter may be impaired.
l The meter is designed to withstand the
stated Max. voltages. If it is not possible
to exclude without doubts that impulses,
transients,disturbance or for other reasons,
these voltages are exceeded a suitable
prescale (10:1) must be used.
l Do not operate the Meter before the cabinet
has been closed and screwed safely as
terminal can carry voltage.
l Make sure the Meter is set to the suitable
range before each measurement.
l Before using the Meter, please inspect the
case and test leads for damaged insulation
or exposed metal.
l Connect the red and black test lead to the
correct measuring input jack properly.
l Do not input values over the maximum
range of each measurement to avoid
damages of the Meter.
l Do not turn the rotary function switch
during Voltage or Current measurement,
otherwise the Meter could be destroyed
Model UT57: OPERATING MANUAL
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