User Manual

GMC-I Gossen-Metrawatt GmbH 45
V/Hz, Ω, Temperature, and A/Hz Measurements
5.7.4 Alternating Current Measurement with Current Clamp Sensors,
A AC and Hz
Transformer Output, Voltage/Current
When a current clamp sensor is connected to the multimeter
(V input ( METRAHIT E BASE : V input)), all current displays appear with
the correct value in accordance with the selected transformation fac-
tor. The only prerequisite is that the current sensor is equipped with at
least one of the below listed transformation factors, and that the fac-
tor has been previously selected in the following menu (
Cl ip ≠ 0FF ),
see also chapter 6.4.
Current Clamp Setup Menu
1nFo
 ...  SET rAtE  ...  CLIP
1 / 10/100/1000 / 0ff 
Maximum allowable operating voltage is equal to the current trans-
former’s nominal voltage. When reading the measured value, addi-
tional error resulting from the current clamp sensor must also be
taken into consideration.
(default setting:
METRAHIT E XTRA , METRAHIT E TECH ,
METRAHIT E SPECIAL : OFF , METRAHIT E BASE : 1:1000 )
Trans. Factors
CL IP
Measuring Ranges DMM Clamp Types
600 mV 6 V
1:1
1mV/1mA
600.00 mA 6.0000 A
1:1
1mV/1mA
1:10
1mV/10mA
6.0000 A 60.000 A
1:10
1mV/10mA
1:100
1mV/100mA
60.000 A 600.00 A
1:100
1mV/100mA
1:1000
1 mV/1 A
600.00 A 6000.0 A
1:1000
1 mV/1 A
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
A~
Hz
003 . 50
A
AC
TRMS
A~
Hz
1:1000
050 . 10
Hz
AC
1:1000
FUNC
ENTER
COM
V
Temp
Ω
V
~
R
x
Hz
Current
R
i
R
i
~ 1 M Ω
METRAHIT EBASE
COM
V
Temp
Ω
A
~
R
x
Current
R
i
R
i
= 1 M Ω/ 9 M Ω
mA
METRAHIT EBASE
V~
Hz
1MΩ
1kHz
V~
R
i
= 1 M Ω R
i
= 9 M Ω
METRAHIT EXTRA,
METRAHIT E
TECH,
METRAHIT E
SPECIAL
METRAHIT EXTRA,
METRAHIT E
TECH,
METRAHIT E
SPECIAL