Operation Manual

34 GMC-I Messtechnik GmbH
V/Hz, Ω, Temperature, and A/Hz Measurements
5.2 Resistance Measurement, Ω
Ð Disconnect supply power from the electrical circuit of the
device to be measured, and discharge all high-voltage
capacitors.
Ð 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.
Ð Set the rotary switch to “Ω”.
Ð Connect the device under test as shown.
Note
Use short or shielded measurement cables in the case of
high-impedance resistance.
Improving Accuracy by means of Zero Balancing
Cable resistance and contact resistance can be eliminated in all
measuring ranges by means of zero balancing (see chapter 4.2).
COM
V
Tem p
Ω
R
x
R
x
0V !
!
Ω
000.00
k Ω
Ω
100 Ω … 40 MΩ
Measuring Ranges: