IN Series

Ultra-accurate currents sensors ranging from 100 to 2,000 A.

Fluxgate Technology reinvented

IN series, for all High-precision applications

The IN family is LEM’s most advanced high precision group of transducers. With its patented and ground-breaking digital integration technology, the IN represents a significant evolution to LEM’s older High Precision transducers. The IN transducers offer best-in-class performance, with the highest accuracy in the market, and low noise over wide operating temperature range. Fluxgate technology reinvented (LEM patent).

IN Family

IN 1000-S

Main benefits:

  • Best-in-class accuracy: excellent linearity and minimum electrical offset
  • Broad frequency bandwidth (up to 1.1 MHz @±3 dB)
  • Compact design with largest aperture for cables and busbars
  • Really good immunity from external fields
  • Overcurrent and protection embedded by design
  • Extended operating temperature range: -40..+85 °C
  • Extremely high stability (0.15 ppm/month)

 

Main features:

  • Closed loop (compensated) current transducers using an extremely accurate zero flux detector
  • 9-pin D-Sub male secondary connector
  • Status signal to indicate the transducer state
  • LED indicator confirms normal operation
  • Metal housing to improve immunity to EMC & power dissipation
  • Transducer identification
  • Large apertures for cables and busbars

IN 200, THE NEW MEMBER OF THE IN SERIES, BEST IN CLASS IN THE HIGH PRECISION MARKET

IN 1000-S
  • Best-in-class accuracy: 0.7 ppm linearity, max 10 ppm electrical offset
  • Broadest frequency bandwidth : DC to 1.1 MHz (-3 dB)
  • Compact design with largest aperture (28 mm)
  • Really good immunity from external fields
  • Overcurrent and protection embedded by design
  • Extended operating temperature range : -40..+85 °C
  • Extremely high stability (0.15 ppm/month)

Download IN 200 Datasheet
Download IN 200 Environmental Profile

IN FAMILY, HIGH PRECISION TRANSDUCERS

in comparison table

 

FLUXGATE TECHNOLOGY REINVENTED

The use of fluxgate technology in transducers for precise current measurement is well-known. However, it has some limitations linked to the ripple derived from the excitation voltage. LEM’s innovation takes fluxgate current transducers to previously unachieved performance levels through digital technology.

fluxate schemaThis digital technology brings a number of benefits.

  • Immunity to temperature effects, interference and supply voltage variation
  • A major reduction of the ripple from the fluxgate driving signal

 

See all series technical data