LEM introduces dual-range, non-intrusive current sensors
September 2006
Sensors & Transducers
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 some of 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 ±80 A and the other between ±50 and ±600 A. 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.
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