Diode Testing With A Constant Current Of 1 Ma - Gossen MetraWatt METRAHIT PM TECH Operating Instructions Manual

V/Hz, , Temperature,
and A/Hz Measurements
7.4 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 7.1.1 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 6.0 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!
33
.
!
V
Temp
0 V !
Measuring Range:
+
to 6.000 V
0.654
Forward Direction
000.8

FUNC
ENTER
0.443
DC
V

COM
–
0.L
Reverse Direction
Gossen Metrawatt GmbH