4.5 ACV MEASUREMENT
1.Insert the black test lead to “COM” jack and the red one to“mA” jack
（
max. 200mA
），
or insert the
red one to “20A” jack
（
max. 20A
）
.
2.Set the range knob to a proper ACA range; connect the test leads across to the circuit under tested.
NOTE:
1.If the measured current range is unsure beforehand, should set the range knob to the highest range,
then set to a proper range according to the displayed value.
2.If LCD displays “1” , it means overrange, should set the range knob to a higher range.
3. Pay attention to measure 20A.. Continuously measuring large current may heat the circuit, affect the
accuracy, eve damage the meter.
4.6 RESISTANCE MEASUREMENT
1.Insert the black test lead to “COM” jack and the red one to“V/
Ω
” jack.
2.Set the range knob to a proper resistance range, connect the test leads across to the resistance
under measured.
NOTE:
1.If the resistance value being measured exceeds the max value of the range selected, LCD displays
"1", thus, should set the range knob to a higher range. When the resistance is over 1M
Ω
, the meter
may take a few seconds to stabilize. This is normal for high resistance readings.
2.When input terminal is in open circuit, overload displays.
3.When measuring in-line resistance, be sure that power is off and all capacitors are released
completely.
4.7 CAPACITANCE MEASUREMENT
1.Insert the red test lead to “COM”terminal and the black one to “mA” jack.
2.Set the range knob to a proper capacitance range, connect the test leads to the capacitor under
measured
（
note: the polarity of red test lead is “+”
）
.
