Electrical Sensors / Detectors / Transducers
Current Transducers operate from single +5 V power supply.
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Press Release Summary:
Combining ASIC with open-loop, Hall-effect technology, HASS Series offers max current measurements from 50-600 A rms. Seven panel-mounted models are available, each measuring 1.6 x 1.2 x 1.3 in. with 0.8 x 0.4 in. aperture for primary conductor. Offering extended operating temperature of -40 to +185°F, transducers measure dc, ac, and pulse currents, while providing galvanic isolation between primary and output circuits. Units are CE marked and conform to EN 50178 standard.
Original Press Release:
LEM Introduces Compact Panel-Mounted Current Transducer Series
LEM Introduces Compact Panel-Mounted Current Transducers for Unipolar +5V Operation
Key points:
Open-loop Hall-effect technology combined with ASIC
Access to the internal voltage reference
Small size for wide current range
GENEVA, Switzerland and MILWAUKEE, WI (March 22, 2007) - LEM S.A., the world's leading manufacturer of isolated current and voltage measurement components, has added the HASS series to its range of current transducer families designed to operate from a single +5V power supply. The seven units offer maximum current measurements from 50 to 600ARMS, and share the same mechanical design, measuring only 1.6 x 1.2 x 1.3in (40 x 30 x 32.5mm) with a 0.8 x 0.4in (20.4 x 10.4mm) aperture for the primary conductor. The transducers weigh only 1.9oz (55g), an important feature for panel-mounting applications.
A unique LEM ASIC designed for use with open-loop Hall-effect technology has been used to provide performance improvements, including better offset and gain drifts and improved linearity, in addition to an extended operating temperature range -40 to + 185°F (-40 to +85°C) compared to traditional discrete technology. The transducers can measure DC, AC and pulse currents, with low power consumption, while providing galvanic isolation between the primary and output circuits.
The internal reference voltage (2.5V) is provided on a separate contact (of the Molex 5045-04A connector) or can be forced by an external reference (between 2 and 2.8V) for reference thermal drift cancellation. Gain and offset are fixed and set so that, at Ipn, the output voltage is equal to Ref in or Ref out ±0.625V.
The HASS series transducers are CE marked, conform to the EN 50178 standard (recognised for industrial applications) and are provided with a five-year warranty, as are all LEM industrial products.
LEM
LEM is a market leader in providing innovative and high quality solutions for measuring electrical parameters. Its core products - current and voltage transducers - are used in a broad range of applications in industrial, traction, energy, automation and automotive markets. LEM's strategy is to exploit the intrinsic strengths of its core business, and develop opportunities in new markets with new applications. LEM is a mid-size, global company with approximately 700 employees worldwide. It has production plants in Geneva (Switzerland), Machida (Japan), Beijing (China), plus regional sales offices, and offers a seamless service worldwide. Further information is available at: www.lem.com
