Model UT90C: OPERATING MANUAL
5
prevent damage of the Meter.
z
Disconnect circuit power and discharge
all high-voltage capacitors before
testing resistance, diodes or continuity.
z
Charge as soon as the Meter indicator
appears to keep precision of the
readings.
z
Remove test leads from the test circuit
before changeover of range. Turn the
Meter power off before connect the
Meter to circuit and check the fuse
before measuring current.
z
When servicing the Meter, use only the
same model number or identical
electrical specifications replacement
parts.
z
The internal circuit of the Meter shall not
be altered will to avoid damage of the
Meter and any accident.
z
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.
z
Turn off the Meter when it is not in use
for a long time.
z
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.
