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GMC-I Messtechnik GmbH
35
V/Hz,
, Temperature,
and A/Hz Measurements
5.4
Diode Testing
with a Constant Current of 1 mA
➭
Disconnect supply power from the electrical circuit of the
device to be measured, and discharge all high-voltage
capacitors.
➭
Make sure that the device under test is voltage-free.
Interference voltages distort measurement results!
Refer to chapter 5.1.1 regarding testing for the absence of
voltage with the help of the direct voltage measurement.
➭
Set the rotary switch to
.
➭
Press the
FUNC | ENTER
key.
➭
Connect the device under test as shown.
Conducting Direction and Short-Circuit
The instrument displays forward voltage in volts (display: 4
places). As long as voltage drop does not exceed the maximum
display value of 5.1 V, several series connected components or
reference diodes can be tested with a small reference voltage and
reference diodes.
Reverse Direction and Interruption
The measuring instrument indicates overload
0L
.
Note
Resistors and semiconductor paths connected in parallel to
the diode distort measurement results!
COM
V
Temp
Forward Direction
Reverse Direction
0 V !
0
.
654
0
.
L
to 5.100 V
Measuring Range:
+
–
0
.
443
V
!
000
.
8
DC
FUNC
ENTER
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