LEM new LF xx10 current transducers range pushes Hall effect technology to new limits

Electronics NewsSouth-East European INDUSTRIAL Мarket - issue 4/2014

LEM announces the new range of LF xx10 transducers for non-intrusive and isolated nominal measurements of DC, AC and pulsed currents from 100 A to 2000 A with 4 new series: LF 210-S, LF 310-S, LF 510-S, LF 1010-S.  A fifth, the LF 2010-S will be available in February 2015.

LEM has developed a way to make Hall effect technology realise the performance achieved by fluxgate technology. The result is an ASIC based on Hall effect technology for use in closed loop mode and its first use is in the new LF xx10 transducers range. LEM’s patented spinning technique and specialist integrated circuits (IC) have been significant contributors to these drastic improvements.

The new series break new ground delivering up to 4 times greater global accuracy over the temperature range (from 0.25 to 0.6 % of IPN) versus the previous generation of Closed Loop Hall effect current transducers, and with a maximum offset drift of 0.1 % of IPN.

With the products’ performance of fluxgate, customers are provided not only with better control and increased system efficiency, but also with a significantly lower price whilst overcoming fluxgate drawbacks such as noise, starting up with primary current and restarting without delay after an overload.

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