User manual

30 GMC-I Messtechnik GmbH
Measurements: V/Hz –  – – Temp – – m – A/Hz
5.2 Resistance Measurement, Ohm
➭ 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 5.1.1 regarding testing for the absence of
voltage with the help of the direct voltage measurement.
➭ Set the rotary switch to “”.
➭ Connect the device under test as shown.
Note
Use short or shielded measurement cables in the case of
high-impedance resistance.
Note
Resistance measurement „“ is not suitable for measure-
ments in symmetrical copper cable networks. Use the loop
impedance measurement function instead, see chapter 6.1.
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 mA A
V
Tem p

aEb
R
x
R
x
0V !
!
0000.0
k 

6 ranges: 300 3k30k, 300k, 3Mand 30 M
Measuring ranges: 0.1 k to 31 M

Temp
RTD
0025.6
 C
Pt1000
FUNC
ENTER
Temp
RTD