- 17 -
DC
V
DC
DC
FUSED
MAX
430mA
MAX
mA
10A
V
COM
CAT II1000V
CAT III 600V
FUSED
10A MAX
1000V
750V
OFF
V
V
430
uA
LOGIC
430
mA
43
mA
10A
REL
RANGE
HOLD
220
MEM
A
Anode
Cathode
2
3
550 - 900mV
good/gut/bien/bon
Reverse Bias Test
good/gut/
bien/bon
bad/schlecht/mal/
mauvais
bad/schlecht/
mal/mauvais
<1V
Anode
Cathode
1
red
rot
roja
rouge
red
rot
roja
rouge
4
5
SLEEP
OFF
MIN MAX
Fig. 7
test leads as shown in figure 7.
❷
Set the Function/range switch to
.
❸
Apply probe tip of red lead to the anode and of black lead to the cathode of the
diode.
❹
The meter’s display indicates the forward voltage drop (approx. 0.6V for
silicon diode or 0.4V for germanium diode). An open diode is indicated by “I OL”.
➎
Reverse test lead connections to the diode to perform a reverse bias test. “I OL”
indicates a good diode.
Notes:
“I OL” for both reverse and forward bias tests
indicates an open diode. A low voltage reading for both bias tests indicates a
shorted diode. If the diode is shunted by a resistor of 1000 ohms or less, it must
be removed from the circuit before taking the measurement. Bipolar transistor
junctions may be tested in the same manner described above as emitter-base and
base-collector junctions are diode junctions.
When measuring continuity
(also for shorted diodes) the meter emits a
continuous tone when the resistance value falls below 50
Ω
.
Hz
A
V
A
%
V
220.Man.08.00 9/11/00 6:05 PM Page 17
