© PCE Instruments
11
5.7
Diode test
WARNING
: Never test diodes in a live circuit.
1. Set the rotary function switch to the Ω
position.
2. Press the MODE button until the
symbol appears on
the LCD display.
3. Insert the black test lead into the COM input jack and the red
test lead into the ? input jack.
4. Touch the test lead probes to the diode under test.
5. Forward voltage will indicate 0.4 to 0.7 on the display. Reverse
voltage will indicate “OL”. Shorted devices will indicate near 0
and an open device will indicate “OL” in both polarities.
5.8
Continuity
WARNING
: Never test continuity on a live circuit.
1. Set the rotary function switch to the Ω
position.
2. Press the MODE button until the “ ” symbol appears on the
display.
3. Insert the black test lead into the COM input jack and the red
test lead into the Ω input jack.
4. Touch the test lead probes to the device or wire under test.
5. A beeper will sound if the resistance is approximately 50 Ω or
less and the resistance value will be shown on the LCD.
