the polarity of the test lead is reversed, the meter will display "OL".
A normal diode still produces a forward voltage drop of 0.5V to 0.8V; the
reverse bias voltage reading depend on the variation in electric resistance of
other channels between two pen-shaped meters.
3.2.4 Beep continuity test
To avoid the meter or the measured equipment from damage,
do not attempt a beep continuity test unless the operator has
already cut off all power sources for the circuit to be
measured and fully discharged all high-voltage capacitors.
Steps for a continuity test:
1. Turn the rotary switch to the position .
2. Connect the test lead in black and test lead in red to COM input
socket and V/input socket respectively.
3. Use another two ends of the test lead to measure the resistance of
the circuit to be measured. If the measured distance is no more than
30Ω, the sensor LED (green indicator) will be on and the beeper will
sound continuously. If the measured resistance is between 40 and
60Ω, the sensor LED (red indicator) will be on.
3.2.5 Capacitance measurement
To avoid the meter or the measured equipment from damage,
do not attempt a capacitance measurement unless the
operator has already cut off all power sources for the circuit
to be measured and fully discharged all high-voltage
capacitors. Use the DC voltage position to determine that all
capacitors have been discharged.
The measuring ranges for the capacitance of this meter are 6.000nF,
60.00nF, 600.0nF, 6.000F, 60.00F and 600.0F,6mF,60mF.
Measurement of capacitance:
1. Turn the rotary switch to the position 60mF.
2. Connect the test leads in black and in red to COM input socket and
input socket respectively.
3. Use another two ends of the test lead to measure the capacitance
of the capacitor to be measured, and capture the measured value
on LCD screen.
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