01483 302 700

sales@caltest.co.uk

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N4L

Current Measurement

HF Series Current Shunts

HF100 + HF200 + HF500 High Frequency Resistive Current Shunts 

The HF series shunts provide an accurate current sensing solution for many wideband power measurement applications up to 500Arms, the shunts are supplied with a 2m safety BNC lead. 

Utilising an innovative design unique to N4L that exhibits exceptionally low parasitic inductance, each shunt will maintain its specified resistance over a frequency range from DC to 1MHz without exhibiting the phase shift that is normally associated with high current resistive shunts. 

While the HF series was primarily designed for use with the PPA series power analyzers from N4L that provide exceptional wideband accuracy, dynamic range and common mode rejection, the HF series can be used as a precise current sensing device for other equipment.


Model

Nominal Resistance

Continuous Current

PPA typical min Current 

Input Connector

HF500

0.2mΩ 

500Arms

0.5Arms

M16 bolt/lug

HF200

0.5mΩ 

200Arms

0.2Arms

M10 bolt

HF100

1mΩ 

100Arms

0.1Arms

M10 bolt

HF020

10mΩ 

20Arms

10mArms

4mm socket

HF006

100mΩ 

6Arms

1mArms

4mm socket

HF003

470mΩ 

3Arms

0.2mArms

4mm socket

HF01A

1Ω 

1.5Arms

0.1mArms

4mm socket

 




High Frequency Rogowski Current Transducers

 WR5000 Rogowski Current Transducer

AC sensing Rogowski current transducer designed for use with the PPA range Precision Power Analyser, enabling high frequency high accuracy current measurement.

Model

Measuring range

Frequency Range

Output Signal

oSpecificationo Data

WR5000

1A to 5kA

1Hz to 1MHz

1A=2mV/0.4mV

 ⇒ Datasheet

WR10000

100kW / 125 kVA

0-120V L-N / 208V L-L

350Arms / Phase

 ⇒ Datasheet









LEM High Accuracy Zero Flux Current Transducers

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For ultra-high precision measurement of current: DC,AC,pulsed..., with galvanic separation between primary and secondary.

Features:

  • Closed loop (compensated) current transducer using an extremely accurate zero flux detector.
  • Electrostatic shield between primary and secondary circuit
  • 9-pin D-Sub male secondary connector
  • Optically insulated output (photocoupler type) indicates transducer state
  • LED indicator confirms normal operation.

Model

Current Rating

Specification Data

LEM IT60-S  

→ 60Adc/ pk 42Arms

Datasheet

LEM IT200-S  

→ 200Adc / pk 141Arms

Datasheet

LEM IT400-S  

→ 400Adc / pk 282Arms

Datasheet

LEM IT700-S  

 → 700Adc / pk 495Arms   

Datasheet

LEM IT1000-S/SP1  

→ 1000Adc / pk 707Arms   

Datasheet

LEM ITN600-S  

→ 600Adc / pk 424Arms

Datasheet

LEM ITN900-S  

→ 900Adc / pk 636Arms

Datasheet

LEM ITN1000-S  

→ 1000Adc / pk 707Arms   

Datasheet

 


 Danisense High Accuracy Zero Flux Current Transducers

danisense_DS200_

The Danisense range of Zero flux current measurement transducers, these current sensors based upon the Zero Flux measurement technique provide high accuracy current measurement up to 2,000Arms

Model Current Rating Specification Data 
Danisense DS200 
→ 200Arms ⇒ Datasheet
Danisense DS600 
→ 600Arms ⇒ Datasheet
Danisense DS2000 
→ 2000Arms ⇒ Datasheet
Danisense DSSIU-4 
4 Channel Interface Unit ⇒ Datasheet   



AC+DC Current Clamps

AC+DC Current Clamp for Power Analysis

Our AC+DC Current Clamp range provide current measurement up to 5,000A (P50-3C) with an upper bandwidth of 5kHz (SC3C), these current clamps offer a convenient method of measurement for applications where the DC component of a signal is of particular interest. For example, these clamps are ideally suited to measurement of the DC bus in an inverter drive.

Model Current Rating Specification Data
SC-2C-100 
1 → 100A ⇒ Datasheet
SC-3C-1000 
1 → 1000A ⇒ Datasheet
P20-3C-2000 
40 → 1000/2000A ⇒ Datasheet
P40-3C-4000 
40 → 2000/4000A ⇒ Datasheet
P50-3C-5000 
50 → 2000/5000A ⇒ Datasheet


AC Current Clamps

AC Current Clamp 1000Arms 15kHz Bandwidth

Our AC Current Clamp range provide current measurement up to 3,000A (P32-UE) with an upper bandwidth of 15kHz (SMUB), these current clamps offer an accurate measurement of an AC signal over a wide bandwidth. Typical applications include PWM Invert Driver output power measurement, transformer loss testing and a range of other AC applications. The wideband response of these current clamps is very flat well beyond the stated frequency range, these AC current clamps offer an ideal solution where cost and convenience must be accompanied with sufficient accuracy.

Model Current Rating Specification Data
M3-UB-50 
100mA → 50A ⇒ Datasheet
M3-U-100 
1 → 100A ⇒ Datasheet
S-UE-200 
1 → 200A ⇒ Datasheet
S-UE-250 
1 → 250/500/1000A ⇒ Datasheet
US-UE-1000 
1 → 1000A ⇒ Datasheet
SM-UE-1000 
0,5 → 1000A ⇒ Datasheet
SM-UB-1000 
0,5 → 1000A ⇒ Datasheet
P32-UE-1000 
5 → 1000A ⇒ Datasheet
P32-UE-3000 
5 → 3000A ⇒ Datasheet



Contact:

Caltest Instruments Ltd

4 Riverside Business Centre

Walnut Tree Close

Guildford

Surrey GU1 4UG

United Kingdom

Tel: +44 (0) 1483 302 700

Fax: +44 (0) 1483 300 562

Email: sales@caltest.co.uk

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