Non-intrusive current sensors monitor batteries

A LEM product story

Edited by the Processingtalk editorial team Jul 20, 2006

LEM has introduced a series of dual-range, automotive-qualified sensors for accurate, wide-range current measurements in vehicle battery monitoring applications

LEM has introduced a series of dual-range, automotive-qualified sensors for accurate, wide-range current measurements in vehicle battery monitoring applications.

The 25 models in the DHAB range are the first in the industry to offer non-intrusive, galvanically-isolated solutions in this application.

A DHAB Hall-effect sensor is fixed onto the battery cable of a car.

Its two cores allow it to be used for two separate current ranges - one between +/-20 and +/-80A and the other between +/-50 and +/-600A.

This enables full-range current measurements to be made in combination with highly-accurate measurements at lower currents.

The sealed housing of the DHAB sensors means that no potting is required.

Panel and cable-mount versions are available to offer maximum mounting versatility.

The sensors meet all relevant standards, including ISO-TS and RoHS.

As with all other LEM products, the DHAB sensors benefit from the company's proven high-quality approach to manufacturing and are backed by a five-year guarantee.

Principal applications are expected to be in the measurement of battery-pack current in electric and hybrid vehicles.