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please disconnect the power of the circuit under test in advance, and fully discharge all the
high voltage capacitors, then connect the instrument to the circuit in series.
Do not input above 200mA maximum measurement current value of the instrument,
otherwise it may burn the fuse in the instrument.
After completed all the measuring operation, please disconnect the probe from the circuit
under test.
Resistance Measurement
1. Turn the rotary switch to , (if not resistance measurement function, please press
“FUNC.” button to switch to resistance measurement function)
2. Connect the probe to the circuit under test in parallel to measure the resistance.
3. Read the measuring results from the display.
Warning
To prevent possible electric shock, fire or personal injury, before measuring the resistance,
please disconnect the power supply of the circuit under test in advance, and fully discharge
all the high voltage capacitors.
After completed all the measurement operation, make sure to disconnect the probe from
the circuit under test.
Diode Test
1. Turn the rotary switch to , press “FUNC.” button to switch to the diode function
2. Connect the red probe to the anode of the diode to be measured, and the black probe to
the cathode of the diode to be measured, the reads on the display is the approximate value
of diode forward voltage drop. If connected backwards, it will display “OL”.
Warning
To prevent possible electric shock, fire or personal injury, before measuring the diode or
connectivity, please disconnect the power supply of the circuit to be measured in advance,
and fully discharge all the high voltage capacitors.
If the measured diode is open circuit or in reverse polarity, the instrument will display “OL”.
After completing all the measurement operations, make sure to disconnect the probe from
the circuit under test.
Connectivity Test
1. Turn the rotary switch to , press “FUNC.” button to switch to connectivity function
2. Connect the instrument to both ends of the circuit to be measured, when the resistance of
the measured circuit is less than 50Ω, the buzzer will sound.
Warning
To prevent possible electric shock, fire or personal injury, before measuring the diode or
connectivity, please disconnect the power supply of the circuit to be measured in advance,
and fully discharge all the high voltage capacitors.
After completing all the measurement operations, make sure to disconnect the probe from
the circuit under test.
Non-contact Voltage Detection
1. Turn the rotary switch of the instrument to any position except OFF.
2. Put the non-contact voltage detecting probe of the instrument close to the live wire of the
AC voltage (less than 5mm).