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

Measurements: V/Hz/dB – PQ/

5.8.3 Current Measurement with Current Clamp Transformer

Alternating Current Measurement and Total Harmonic Distortion,
Direct and Pulsating Current – A AC and thd, A DC, A AC+DC
Current/Current Transformer Output
When a current clamp transformer is connected to the multimeter
( mA/A input) all current displays appear with the correct value in
accordance with the selected transformation ratio. The only prere-
quisite is that the current transformer 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).
Note
The order of the measuring functions for switch position A
is changed when a clip factor is selected:
The two AC measuring functions, A AC and thd (A AC), are
moved to the beginning, because DC current cannot be
measured with common current clamp transformers.
Current Clamp Setup Menu
MEASURE
1nFo   SET
...
SETUP
FUNC
CL IP set: 1:1 / 10/100/1000 / 0ff
ENTER
58
– MHz/% – /nS/R
–
SL
FUNC
system
  CLIP
...
ENTER
FUNC

ENTER
/ – Temp – /m – W/Wh – A/Hz/thd
Trans. Ratio DMM Measuring Range
CL IP
60 mA AC
1:1
60.000 mA
1 mA / 1 mA
1:10
600.00 mA
1 mA / 10 mA
1:100
6.0000 A
1 mA / 100 mA
1:1000
60.000 A
1 mA / 1 A
(default setting: Cl ip 0FF)
Clamp Types
600 mA AC 6 A AC
600.00 mA 6.0000 A
6.0000 A 60.000 A
WZ12A, WZ12D,
WZ11A, Z3511,
Z3512, Z3514
60.000 A 600.00 A
600.00 A 6000.0 A
GMC-I Messtechnik GmbH