Variohm EuroSensor has added a new cable extension linear position sensor from its distribution partner, the USA 'string pot' sensor specialist Celesco Inc. The MT3A is particularly suited to precision distance measurement up to 750 mm in potentially wet and severe application environments. The rugged sensor features an O-ring sealed and IP67 rated anodised aluminium enclosure with a polycarbonate cover and a nylon-coated stainless steel measurement cable. With a choice of three cable tension options to suit linear position measurement in acceleration conditions of 17g, 50g or 90g, it is well matched for demanding automotive/autosports and aerospace test applications such as crash testing, structural component evaluation and off-road suspension testing .Furthermore, an extended temperature range of -40 to +125 ºC allows use in all-weather outdoor environments and as the MT3A can withstand temporary immersion in water and washdown situations, its use across harsh industrial applications is also possible. For extreme high impact applications, an optional anodised aluminium cover is available.
The conductive plastic-hybrid potentiometer sensor provides a voltage divider output from an input voltage up to 30 VDC, with effectively infinite positioning resolution and full stroke accuracy up to +/- 0.25% , and repeatability to +/- 0.02%.
For mounting flexibility the MT3A features an integral 2-axis, 360° freely rotating mounting bracket, and measuring within a volume of under 62 mm x 41 mm x 45 mm (LxDxH), it is easily installed in space restricted areas.
The sensor is available in four measurement ranges of 0 .. 75 mm, 0 .. 225 mm, 0 .. 375 mm and 0 .. 750 mm. Electrical connection is via strain relief cable (4.5 m or 9 m length) in a choice of end, top or side mounting. Customers can also specify a plain cover option to provide their own cabling arrangements.
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