Robust current sensors for use in harsh conditions

HARTING has introduced a new range of Hall-effect current sensors with robust design and construction that makes them ideally suited to use in harsh conditions in areas such as rail technology and renewable energy. The new sensors are designed to provide rapid and accurate current measurement for use in regulating power semiconductor systems such as frequency converters, uninterruptible power supplies and welding plant. Developed for these markets in close consultation with customers, they are designed to sense currents between 200 and 2000 A, and offer high levels of measurement accuracy and immunity to interference from external magnetic fields. The HARTING current sensor product family is based on the proven and tested Hall effect. The galvanically isolated devices measure current via the magnetic field of the conductor using two principles of measurement: compensation current sensing for the most demanding measurement tasks; and open-loop current sensing where there is less demand for accuracy. The sensors are easy to incorporate into existing applications, as they have a standard footprint and installation measurements. A choice of connection technologies and pre-assembled signal cables enable cost-effective and secure assembly. Mating connectors and cables are no longer manufactured separately, reducing the overall number of parts required. www.harting.com