Wavetek Meterman 23XT Manuel D'utilisation page 17

lead to the V•Ω Input and the black test lead to the COM Input. ❷ Set the
Function/range switch to
and of black lead to the cathode of the diode. ❹ The meter's display indicates the
forward voltage drop (approximately 0.6V for silicon diode or 0.4V for germanium
diode). Meter will display overload condition for an open diode. š Reverse test lead
connections to the diode to perform a reverse bias test. Overload indicates a good diode.
Notes: Overload condition for both reverse and forward bias tests indicate an open
diode. A low voltage reading for both bias tests indicates a shorted diode. Bipolar
transistor junctions may be tested in the same manner described above.
D • Dioden- und Transistortest
Der Diodentest zeigt den Spannungsabfall über den Diodendurchgang ❶ Rotes
4
ON/OFF HI/LO
H
20
2
200m
20m
2m
TTL
LOGIC
CMOS
2000
M
20M
2M
200k
20k
2k
Cx
Lx
V- COM
CAT.
II
MAX
1000V
750V
1
Fig. 4
position. ❸ Apply probe tip of red lead to the anode
mV
MAX DC/AC
20M
1000
Hz
V
750
200
20
2
A
200m
200m
20m
10A
2
2m
200
2n
20n
F
2
20
2000
200
27XT
mA Cx Lx 20A
200mA MAX
FUSED
MAX
20A/30sec
FUSED
550 - 900mV
good/gut/bien/bon
bad/schlecht/mal/
mauvais
Reverse Bias Test
5
Anode
Cathode
- 15 -
bad/schlecht/
<1V
mal/mauvais
good/gut/
bien/bon
Cathode
red
rot
roja
rouge
Anode
3
red
rot
roja
rouge