LEM launches world’s most accurate current measurement transducer for test & measurement applications

LEM is offering record levels of accuracy performance in current sensing with the launch of its IN 200 current measurement transducer.

As the most accurate sensor of its kind on the market, the IN 200 is ideal for use in such demanding applications as high-precision test & measurement (T&M) equipment used to analyse the efficiency of inverters fitted to hybrid electric vehicles (HEVs) and electric vehicles (EVs).The IN 200 is able to offer significant performance improvements – particularly in terms of linearity, offset and noise immunity – over traditional fluxgate transducers through its use of a new kind of digital technology.

Unparalleled levels of accuracy are achieved in linearity and electrical offset. While the IN 200’s data sheet quotes 0.6 parts per million (ppm) and maximum 10ppm respectively, in-house tests have shown that the sensor can achieve linearity below 0.5ppm and offset of +/-5ppm.This compares with competitors’ transducers offering +/-20-25ppm.

The IN 200 completes LEM’s IN family of High Precision sensors which now covers a current range from 100A to 2000A. The IN 200 itself is effectively three products capable of matching nominal currents of 100A, 200A and 400A (more info).