ELPM linear position sensor features improved sealing option

Written by: Tom Austin-Morgan | Published:

Variohm EuroSensor’s ELPM motorsports series linear position sensor is suited for applications including ride height, suspension displacement and steering angle measurement. Recent developments include an optional internal dual-lip seal arrangement that offers enhanced reliability and improved endurance. The option is claimed to suit all areas of motorsports as well as industrial applications where unpredictable wet and hostile environmental conditions may exist.

The S option (ELPMS) is available across the full range of the sensor series, covering electrical stroke lengths from 12.5 to 175mm for both the standard self-aligning pivot bearing version and the ‘Pop’ version that includes snap-on mountings for rapid installation or removal. The independent linearity across the range is ±1% for the 12.5 to 50mm versions and ±0.5% for the 75 to 175mm versions. The ELPM has a temperature range of -30 to 150°C continuous with a short term rating to 175°C.

Rated at 25million operations and with a maximum speed of 10m/sec, the long life and high reliability of the ELPM and ELPMS series is due to the multi-fingered precious metal wiper system which maintains full and complete contact with the linear sensor’s conductive plastic resistance element - even under the most arduous physical and environmental conditions and with low electrical noise. The 24Vdc supplied sensor has a recommended wiper current of 10µA for maximum efficiency in battery powered use and is supplied as standard with a 500mm free cable with a Viton seal.

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