Diode Check
Do not connect the meter to a source of voltage or current with the
range selector in the
Failure to observe this warning may result in serious injury or death.
Disconnect the test leads from the component or circuit under test
before changing the position of the range selector.
Failure to observe this precaution may result in minor injury and/or
damage to this instrument.
1. Shut off and disconnect the power. Make sure all capacitors are discharged. Voltage must
not be present.
2. Plug the black test lead into the COM input terminal, and plug the red test lead into the
VΩBAT input terminal.
3. Set range selector to the
4. Touch the test leads to the diode under test and read the display. The expected display is
approximately as follows:
Forward-Biased
Reverse-Biased
Note: Any other reading indicates that the diode is defective.
All manuals and user guides at all-guides.com
position.
position.
Germanium-Based Diode
0.25 volts – 0.45 volts
"1" (at the left side of the display) "1" (at the left side of the display)
93-603 Multimeter
Silicon-Based Diode
0.60 volts – 0.90 volts
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