Current Measurement With Current Clamp Sensor - Gossen MetraWatt METRAHIT ENERGY TRMS System Multimeter Operating Instructions Manual

Measurements: V/Hz/dB – PQ/

5.8.2 Current Measurement with Current Clamp Sensor

Voltage/Current Transformer Output
When a current clamp sensor is connected to the system multime-
ter (V input), all current displays appear with the correct value in
accordance with the selected transformation ratio. The only prere-
quisite is that the current sensor is equipped with at least one of
the below listed transformation ratios, and that the ratio has been
previously selected in the following menu (Cl ip 0FF) (see also
section 6.4).
Current Clamp Setup Menu
MEASURE
1nFo   SET
...
SETUP
FUNC
CLIP set: 1:1 / 10/100/1000 / 0ff
ENTER
Trans. Ratio DMM Measuring Range
CL IP
600 mV
1:1
600.00 mA
1 m V / 1 mA
1:10
6.0000 A
1 mV / 10 mA
1:100
60.000 A
1 mV / 100 mA
1:1000
600.00 A
1 mV / 1 A
The maximum allowable operating voltage is equal to the nominal
voltage of the current transformer. When reading the measured
value, additional error resulting from the current clamp sensor
must also be taken into consideration (default setting:
Cl ip 0FF).
56
– MHz/% – /nS/R
–
SL
FUNC
system
  CLIP
...
ENTER
FUNC

ENTER
Clamp Types
6 V 60 V
6.0000 A 60.000 A WZ12C
WZ12B, Z201A/B,
60.000 A 600.00 A
METRAFLEX
Z202A/B,
600.00 A 6000.0 A
METRAFLEX
Z202A/B, Z203A/B,
6000.0 A 60000 A WZ12C,
METRAFLEX
/ – Temp – /m – W/Wh – A/Hz/thd
V~
1kHz
dB

V
Temp
R
i
R
i
R
i
~
R
x
Harmonic Analysis with Current Clamp Sensor
Parameters for harmonic analysis:
See section 6.4.6 on page 71.
V
V
!
COM
Max. 600 V (< 10 kHz)
max. 100 V (> 10 kHz)
 9 M
6
P = 6 x 10 V x Hz
 17 M (DC)
max
> 30 V AC / > 35 V DC :
Current
> 600 V:
GMC-I Messtechnik GmbH
[PQ]