-15- -16-
3. Connect the test pin/clip to the unit tested, Press the test
button to measure, the buzzer will sound continuously and
the high voltage light will be actived. LCD display as below:
4. Release the button, the instrument will discharge the high
voltage automatically, and the high voltage light and the
sound of the high voltage will stop.Only remove the test
wires when LCD display oV. LCD display the
tested time and insulation resistance as below:
After a full screen display, LCD display as below:
V
High voltage
Indicator
(LINE)一
CURRENT
RX
EARTH(+)
5. Remove the terminal pins/alligator to the part under test
then turn off the unit.
6. The test principle of the insulation resistance:
Resistance value can be obtained by applying a certain
high voltage to trigger following current R=V/I.
Do not touch the circuit under test immediately after
testing. Capacitance stored in the circuit may cause
electric shock.
Danger
Caution:
1. It consumes 25mA current when the function switch is at any
position other than OFF (Auto- power - off: Approx 1uA). Set the
function switch to OFF position when. Not use the instrument.
2. The test switch of this instrument have two test methods:
a. Instant measurement: press the TEST button only, it produces
high voltage to test insulation resistance. Release the button,
the measurement will stop.
b. Continuous measurement: press the TEST button and rotate
to lock the switch to take measure continuously.
Turn the TEST button to anti-clockwise and release it, the
tester will stop the measurement.
3. To make sure safety of measurement and the instrument.
Choose 500V lever when the insulation resistance is less than
50mΩ.
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