312, 316, 318
14
Diode Test
XWarning
To avoid electrical shock when testing diodes in a circuit,
make sure the power to the circuit is turned off and all
capacitors are discharged.
1. Turn the rotary function switch to D. Remove power from the
circuit being tested.
2. Connect the black test lead to the COM terminal and the red
test lead to the Ve terminal.
3. Connect the black test lead to the cathode side and the red
test lead to the anode side of the diode being tested.
4. Read forward bias voltage value on the LCD.
5. If the polarity of the test leads is the reverse of the diode
polarity, the LCD reading shows “OL”. This can be used for
distinguishing the anode side and cathode side of a diode.
TRUE RMS
CLAMP METER
318
AC/DC MIN MAXREL
OFF
40
A
400
A
1000
A
V
PEAK HOLD
OFF
PEAK HOLD
aca18f.eps
Figure 8. Diode Test (318 shown)
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