37
6. The nature of the diode or semiconductor PN junction may be judged from the following:
If a reading at one time displays a voltage value (about 0.2V to 0.7V) and a reading at another time displays
“O.L”, then this diode is good.
If the reading of both times displays “O.L”, there is break circuit with the diode.
If the reading of both times is very small or 0, there is short circuit with the diode.
Continuity test
Warning! To avoid electricity shock, please do not perform continuity test of circuit with load of voltage.
1. Plug the banana plug of the black test line into the negative COM socket and the banana plug of the red test line
into the positive resistor
socket.
2. Rotate the rotary knob to select “
” measurement function. Then, a sign of “RESISTANCE” will appear
on the top of the screen to remind user that the function of resistance measurement is currently available.
3. Press F3 button (SEL) to select the function of continuity test.
4. Use the test lead to touch the circuit to be tested. If the resistance is smaller than 50Ω, the buzzer will sound.
