20
Model UT513: OPERATING MANUAL
To measure insulation resistance, set up the Meter as
Figure 5 and do the following:
Press
IR
button to select insulation resistance
measurement.
When there is no testing voltage output, press
and button to select voltages of 500V, 1000V,
2500V or 5000V.
When performing insulation resistance tests, remove
all power from the circuit to be measured and
discharged all the power.
Insert the red test lead into the
LINE
input terminal
and the black test lead into
GUARD
input terminal.
Connect the red and black alligator clip to the circuit
to be measured, negative voltage output from
LINE
terminal.
Choose below insulation resistance measurement
mode.
1.
2.
3.
4.
5.
6.
Press
TIME
button to select continuous
measurement mode, there is no timer icon on the
LCD.
Press and hold
TEST
button for 1 second to
carry out continuous measurement. Output
insulation resistance testing voltage,
TEST
button
light up,
blinks on every 0.5 seconds.
Press
TEST
button to close the insulation resistance
measurement voltage when measurement is
completed.
TEST
button lights off, disappears.
The LCD shows the current insulation resistance
measurement value.
Press
TIME
button to select timed measurement
mode, the LCD displays
TIME 1
and symbols.
Press and buttons to set the time (00:10~15:00).
Within 1 minute, the time increment or decrement
by every 5 seconds. Afterward, the time increment
or decrement by every 30 seconds.
