equipment ,and even bring the risk of electronic shock. Be sure to cut off power and check input terminal and the
position of range knob.After confirmation, that there isn’t any error, turn on power .If the current range under
test is unknown beforehand , set the knob to the highest range ,select a proper range according to the displaying
value.
mA input jack ,too large current will blow the fuse ,should replace the fuse .
The dimension of fuse is
Φ
5×20mm,electric dimension : 200mA250v ;
Have no fuse internal for10A input jack .
In order to operate safely, measurement time should be within 10sec.and next measurement should be after 15
minutes .
4.RESISTANCE MEASUREMENT (FIG.4)
4-1.Apply the red test lead to “V
Ω
mA” terminal and the black
one to “COM” terminal.
4-2.Set the fuction range knob to resistance range, multipled
the test leads to the resistance under tested .
4-3. Read the measured value from the LCD .
NOTE:To avoid the damage of the instrument, before
measurement ensure that power is turned off and capacitors are
released completely.
At 200
Ω
range,it should make the test leads short to measure
the wire resistance , then substract from the real measurement.
When the measured resistance is over 1M
Ω
,the instrument
needs a few seconds to make reading stable ,it’s normal .
5.DIODE AND CONTINUITY TEST (FIG.5)
5-1.Apply the red test lead to “V
Ω
mA” terminal , the black one to “COM” terminal.
5-2.Set the knob “diode” range ,connect the red test lead to diode positive polarity,the black one to cathod
polarity.
5-3.Read the measured value from the LCD.
5-4.Connect the test leads to both ends of the wire under tested .Built-in buzzer sounds when resistance between
the two ends is lower than approx.70
Ω
.
