User Manual

GMC-I Messtechnik GmbH 37
Measurements: V/Hz, , , Temp (°C/°F), , M
@UISO
, A/Hz
5.5 Diode Testing with 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 section 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 and the diode symbol appears at
the display.
➭ 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 with small reference voltages, as well as
Z-diodes and LEDs, can be tested.
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 mA A
V
Temp
 MISO
Forward Direction Reverse Direction
0V !
0.L
to 5.100 V
Measuring Range:
+
–
0 . 443
V
!
000 . 8

DC
FUNC
ENTER