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Taking capacitive sensing to a new level

Taking capacitive sensing to a new level Rechner is a leading exponent of capacitive sensors, and has taken the technology to a different level. Take, for example, the company’s High Performance series: these sensors offer typically three times the sensing distance of standard devices, and the adjustment starts virtually from the active face of the sensor. As an example, you can quite easily tune out more than 15mm of glass with an M18 device or, more to the point, ignore a far greater level of product deposit on the active area of the sensor. This in turn opens up the opportunities for more non-invasive level measurements despite product build-up on the face of a window. It also reduces the need for cleaning that is so often necessary. The High Performance series is capable of detecting materials with dielectric constants right down to 1-1, delivering greatly increased stability and making it possible to fit a standard capacitive sensor in applications where you might traditionally have turned to another technology such as vibrating forks. Further, the sensing distance is medium optimised, so you can detect a whole range of different products without worrying about resetting the sensitivity adjustment for each one. And this is combined with temperature stability up to 100°C as standard and excellent EMC characteristics. This opens up enormous application possibilities. The High Performance series covers sensors in a range of sizes from M8 x 1mm up to 64mm diameter, with both flush and non-flush mountable models.

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