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7
Capacitance, Diode test function
Default at
. Press SELECT button momentarily to select Diode test function.
CAUTION
Discharge capacitors before making any measurement. Large value capacitors should
be discharged through an appropriate resistance load.
Normal forward voltage drop (forward biased) for a good silicon diode is between
0.400V to 0.900V. A higher reading indicates a leaky diode (defective). A zero reading
indicates a shorted diode (defective). An OL indicates an open diode (defective).
Reverse the test leads connections (reverse biased) across the diode. The digital
display shows OL if the diode is good. Any other readings indicate the diode is resistive
or shorted (defective).
A A A
Forward Bias
Reverse Bias
Cap
Diode
Diode