Gossen Metrawatt Metrahit Iso Insulation measuring device, CAT III 600 V Metrahit Iso Benutzerhandbuch
Produktcode
Metrahit Iso
GMC-I Gossen-Metrawatt GmbH
37
Measurements: V/Hz,
Ω, , Temp (°C/°F),
, M
Ω
@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.
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.
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.
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!
the diode distort measurement results!
COM mA A
V
Temp
Ω MΩ
ISO
Forward Direction
Reverse Direction
0 V !
0.L
to 5.100 V
Measuring Range:
+
–
0.443
V
!
000.8
Ω
DC
FUNC
ENTER