User Manual

GMC-I Messtechnik GmbH 41
V/Hz/dB – , Temperature, and A/Hz Measurements
5.6 Capacitance Measurement
Ð Disconnect supply power from the electrical circuit of the de-
vice to be measured, and discharge all high-voltage capaci-
tors.
Ð Make sure that the device under test is voltage-free.
Capacitors must always be discharged before measurement is
performed. Interference voltages distort measurement results!
Refer to section 5.1.1 regarding testing for the absence of volt-
age with the help of the direct voltage measurement.
Ð Set the rotary switch to “ ”.
Ð Connect the (discharged!) device under test to the sockets
with the measurement cables as shown.
Note

The “–” pole of polarized capacitors must be connected to
the “” jack.
Resistors and semiconductor paths connected in parallel to
the capacitor distort measurement results!
Note

Use of the power pack may result in significant deviations
during capacitance measurements!
Note

This function is above all intended for the measurement of
components. For telecommunication systems, it’s advisable
to use the special capacitance measurement for measure-
ments in symmetrical copper cable networks with the
METRAHITT-COM PLUS cable multimeter.
0V !
!
10.38
F
+
–

3 nF ... 3 mF
Measuring Ranges:
COM
V
Temp

+
–