Diode Check - Greenlee 93-604 Instruction Manual

Diode Check

Do not connect the meter to a source of voltage or current when the
range selector is in the
Failure to observe this warning may result in serious injury or death.
Do not change the position of the selector switch when the test leads
are connected to a component or circuit. Damage to the meter can
result.
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
V/ input terminal.
3. Set selector switch to the
4. Touch the test leads to the diode under test. The expected display is approximately as
follows:
Forward-Biased
Reverse-Biased
Note: Any other reading indicates that the diode is defective.
position.
Germanium-Based Diode
250 mV - 450 mV
"1" or "–1" (at the left side
of the display)
position. Electric shock can result.
Silicon-Based Diode
600 mV - 900 mV
"1" or "–1" (at the left side
93-604 Multimeter
of the display)
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