Cable extension position sensors

Written by: Chris Shaw | Published:

Celesco's PT9000 cable extension position sensors are available exclusively in the UK from Variohm EuroSensor. According to Variohm, they are suitable for heavy duty, high accuracy linear measurement up to 43metres.

The choice of models and options covers IP67 or IP68 sealed aluminium or stainless steel housings, several industry standard output signal options and a selection of electrical interfacing. The standard version has 11 measurement range options from 0 to 14metres with an optional extended range to around 43metres.

The operating temperature spans -40 to 90°C, and the vibration rating is 10G at 2000Hz. Guaranteed best position accuracy is 0.1% of full stroke with repeatability to 0.02% of full stroke.

Throughout the range, the drum mounted plastic hybrid precision potentiometer is factory configured for a choice of electrical output covering voltage divider, position/velocity output (with additional tachometer), 0/4...20 mA, and 0...10VDC. An incremental encoder version is also available with positioning resolution from 10 to 250pulses per inch of travel. CanBus and DeviceNet compatible output versions may also be supplied.

Additional options include a redundant brush system and a velocity limiting system, up to seven electrical connection options are available for each output version – from plastic or metal connectors to fully pressure tested waterproof cable.

The PT9000 series is also available in a choice of powder painted aluminium or 303 stainless steel housings with IP67 or pressure tested IP68 rated protection from immersion in liquids. Hazardous area certification is also available and measuring cable options further nylon-coated stainless steel, stainless steel only or thermoplastic cable.

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