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Electric Current Measurement 
 
High accuracy and very high accuracy Current Transducers, Transformers and Instruments for isolated measurement of electric current from 1mA to 300kA full scale and frequencies from dc to over 2GHz.

 
 
DC/AC Current Transducers For Low Current
Overview Product Peak
Current
Resolution Bandwidth
 
Bergoz Current Transducer DC/AC. High sensitivity for low current. Differential and net current measurements of multiple conductors. Large internal diameter enables high voltage isolation. Bergoz IPCT
IPCT
± 10mA
±100mA
±200mA
±1000mA
±2000mA
±5000mA
10µA DC - 4.2kHz
DC/AC Current Probes
Overview Product Peak
Current
Accuracy Bandwidth
VAC Panel Mount Current Probes 400Arms to 1000Arms Current Sensors for high accuracy and high stability current measurement

4644, 4640
Current Probes

± 700A
± 1.25kA
± 2.5kA

< ± 0.5% of fs DC - 50kHz
(-3dB)
DC/AC Clamp-On/Clip-on Current Probes
Overview Product Peak
Current
Accuracy Bandwidth
GMW DC/AC Clip-on Current Probe. Electrically isolated measurement of high electric currents without disconnection of the primary conductor.

27mm aperature.


CPC

± 250A
± 500A
± 1kA
± 2kA

< ± 1% of fs DC - 75kHz
(-3dB)
GMW DC/AC Clamp-on Current Probe. Electrically isolated measurement of high electric currents without disconnection of the primary conductor.

77mm and 160mm aperatures.

CPCO

± 500A
± 1kA
± 2kA
± 4kA
± 8kA
± 16kA

< ± 1% of fs DC - 40kHz
(-3dB)
DC/AC Very High Accuracy Current Transducers - Single Channel
Overview Product Peak
Current
Output Bandwidth
DaniSense Current Transducer DC/AC. Very high accuracy current measurement for power converters, motor drives, electrochemistry, particle accelerator electromagnets, MRI gradient magnets. LEM ITN 12-P
DS

±300A 
±900A 
±3kA 
±8kA 

±40 to 640A2

2 Programmable.

±0.6A1
±0.6A1
±2A 1

±3.2A 1
±1A

1 Voltage Output
option available.

DC - 1MHz 
DC - 100kHz 
DC - 10kHz 
DC - 5kHz 
---
DaniSense DSSIU-4 Transducer Interface Unit and Power Supply, 4-channel Provides Power and Signal connection for up to four Current Transducer heads. Output.

DSSIU-4

±300A 
±900A 
±3kA 
±0.6A1
±0.6A1
±2A 1




1 Voltage Output
option available.
DC - 1MHz 
DC - 100kHz 
DC - 10kHz 
AC Current Probes
Overview Product Peak
Current
Sensitivity Bandwidth

PEM AC Current Probes. The PEM range of CWT and LFR Current Probes based on the Rogowski Coil principle are suitable for measuring AC currents ranging from milli-amps to hundreds of kA at frequencies from below 1 Hz up to 30 MHz. These "clip-around" Current Probes have very low insertion impedance, are easy to insert in confined spaces, have an isolation capability up to 10kV and are not damaged by over-current surges. They can be used for measuring ac, pulse or transient current waveforms. Since the PEM Current Probes have no magnetic core they can be used to measure AC current on a conductor with high dc current or in the presence of a high dc magnetic field.

 

PEm CWT Ultra Mini
CWT Ultra Mini
30A to 1.2kA 200mV/A to
5mV/A
3.2Hz to 30MHz

PEm CWT Mini
CWT Mini ,
CWT MiniHF

30A to 30kA 200mV/A to
0.2mV/A
0.03Hz to 30MHz
CWT MiniHF is electrostatically shielded to provid excellent immunity
to interferencefrom fast local dV/dt transient or large 50/60Hz voltage.
PEM CWTLF
CWT
30A to 300kA 200mV/A to
0.02mV/A
0.03Hz to 16MHz
0.03Hz to 16MHz

CWTLF
30A to 300kA 100mV/A to
0.02mV/A
0.008Hz - 12MHz

LFR
Dual Range
60/600A to
6/60kA
100-10mV/A to
1.0-0.1mV/A
<0.45Hz to 1MHz
Bergoz IPCT
CMC
37.5A to 150A 200mV/A to
50mV/A
1.9kHz to 14MHz

The RCT Series of AC Current Probes includes a DIN Rail Mounted Integrator and is intended for permanent installation in AC power systems. Absolute amplitude accuracy is better than 1% at 50/60Hz and the phase shift is reproducible and less than 1 degree. They are simple to retrofit into existing systems without changing cables or busbar connections.

PEM RCTi
RCTi
250Arms to
500kArms
± 5.0Vrms
(± 7.07V peak)
0.06Hz to 1MHz
PEM RCTi-3ph
RCTi-3ph
250Arms to 50kArms ± 5.0Vrms
(± 7.07V peak)
0.06Hz to 1MHz
PEM RCTrms
RCTrms
100Arms to 50kArms

0-5V dc
or 4-20mA

Output is RMS Value

2Hz to 100kHz
AC Current Transformers for Broad Frequency Response
Overview Product Peak
Current
Droop Rise Time
Magnelab Current Transformer, AC/Pulse. Measurement range from microA to 20kA, at frequencies ranging from 0.5Hz to 500MHz.

MagneLab CT
CT
200A
400A
1kA
2kA
4kA
10kA
20kA
4 %/ms
0.75 %/ms
0.13 %/ms
0.03 %/ms
0.01 %/ms
0.001 %/ms
0.0003 %/ms
0.875 ns
0.7ns
0.7 ns
1.75 ns
3.5 ns
7 ns
17.5 ns
AC Current Transformers for Very High Frequency Response
Overview Product Peak
Current
Droop Rise Time
Bergoz Current Transformer AC/Pulse. Very high frequency for rf or pulse currents. High sensitivity to 5V/A.

Bergoz FCT
FCT
Up to 2kA <0.05%/µs to
<20%/µs
200ps to 1000ps
Bergoz FCT also available in conflat flanges for direct mounting on a vacuum beam pipe. In-flange FCT
*GMW is no longer an authorized LEM distributor. For items still in stock, see pricing page.
 This page was last updated on 16 October, 2017
 
  Tel: + 650-802-8292    Fax: + 650-802-8298
   
Email:     
955 Industrial Road, San Carlos, CA 94070, USA