HT60
EN - 12
4.3.5. Diode
test
CAUTION
Before attempting any resistance measurement, cut off power supply from
the circuit to be measured and make sure that all capacitors are discharged,
if present.
Fig. 6: Use of the instrument for diode test
1. Select position
2. Press the
MODE
key until the symbol
“
”
is displayed.
3. Insert the red cable into input terminal
Hz%V
and the black cable into input
terminal
COM
.
4. Position the leads at the ends of the diode to be tested, respecting the indicated
polarity (see Fig. 6). The value of directly polarized threshold voltage is shown on the
display.
5. If threshold value is equal to 0mV, the P-N junction of the diode is short-circuited.
6. If the display shows the message
“
O.L.
”
, the terminals of the diode are reversed with
respect to the indication given in Fig. 6 or the P-N junction of the diode is damaged.
Summary of Contents for HT60
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