CIRCUTOR CPM (Available until stocks) - Manual (Page 18)

--------- MULTIMETER CURRENT CLAMP CPM -------- PG No. 17
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3.2.6.- Diode test
1. Connect the black test probe to the COM terminal [4]
and the red test probe to the terminal [5].
2. Set the rotary switch [1] to the position “ “ .
3. Disconnect the power supply to the circuit being tested.
4. Connect the black test probe to the negative (-) side of the diode and the
red test probe to the positive (+) side. Normally the direct voltage of a good
silicon diode is of 0.6 V.
5. On inverting the test probes, if the diode is good “OL” will appear on the
display [1] and if it is faulty, 000 or another value will appear.
6. If the diode is open, the “OL” indicator will appear for each direction.
7. If the diode of a circuit is measured and a low measurement is obtained for
each measurement direction, then the junction must be in parallel and with
a resistance of less than 1 k
Ω
. In this case the diode must be disconnected
from the circuit in order to perform an exact measurement.