16
DIODE TEST
1. Insert the black test lead banana plug into the negative COM
jack and the red test lead banana plug into the
V··CAP·TEMP·Hz· positive jack.
2. Turn the function switch to position. Use the MODE button
to select the diode function if necessary (diode symbol will
appear on the LCD when in Diode test mode).
3. Touch the test probe tips to the diode or semiconductor
junction under test. Note the meter reading.
4. Reverse the test lead polarity by reversing the red and black
leads. Note this reading.
5. The diode or junction can be evaluated as follows:
If one reading displays a value (typically 0.400V to
0.900V)
and the other reading displays OL, the diode
is good.
If both readings display OL the device is open.
If both readings are very small or ‘0’, the device is
shorted.
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