UNI-T UT525, Operating Manual

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23
UT525/526 Operating Manual
24
UT525/526 Operating Manual
X Insulation Resistance Testing
(see picture 5 for the connection
diagram)
Note
1. Before testing, make sure that the circuit to be tested is uncharged, do not
test the insulation of charged equipment or live circuit.
2. When the battery cover is open, do not test.
3. Do not make the two pens short circuit state under high voltage input and
do not test the insulation resistance after outputting high voltage.
Press to make the dial plate point to UT525 (100V/250V/500V) or UT526
(250V/500V/1,000V)
1. Before testing insulation resistance, the circuit to be tested must be
discharged completely and separated from the power circuit absolutely.
2. Insert the red testing wire into “ LINE ” input terminal, and black testing wire
into “ N ” input terminal.
3. Connect the red, black alligator clips to the circuit to be tested, and the high
voltage is outputted from LINE terminal.