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BMMTRS1
ENGLISH
3.2.5 Diode Test
To test a diode out of a circuit (set up the Meter as shown in
Figure 3-5
):
1. Set the rotary switch to range.
2. Press the SELECT key to select Diode Test.
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4. For forward-bias readings on any semiconductor component, place the red test lead on the com-
ponent’s anode and place the black test lead on the component’s cathode.
5. The meter will show the approx. forward voltage of the diode.
In a circuit, a good diode (Si)
should still produce a forward
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however, the reverse-bias read-
ing can vary depending on the
resistance of other pathways
between the probe tips.
Figure 3-4
Checking the Continuity
To avoid electrical shock and/or damage to the instrument, disconnect circuit
power and discharge all high-voltage capacitors before testing diodes.
