Penny + Giles is launching a new non-contact sealed linear transducer (SLT) that provides reliable, fit-and-forget position sensing for rugged industrial applications. The robust SLT190 is aimed primarily at the off-highway (construction, agriculture) and utility vehicle markets and is suitable for the harsh conditions of steering position applications, lift mechanisms, and hydro-pneumatic active suspension systems. This transducer has a short body-to-stroke ratio, making it suitable as a replacement for existing linear potentiometers while providing a significant cost saving over equivalent-stroke inductive transducers.
The SLT190 provides a range of 14 different strokes from 25-500 mm. It uses proven inductive technology, with no electrical sliding contacts, and, as a result, has a virtually limitless life. It provides reliable, absolute analogue position measurement with an infinite resolution.
Housed in a rugged stainless steel case with M8 stainless steel rod end bearings for simple installation, the transducer is sealed to IP67. As such, it is protected against the ingress of dust and water and is suitable for use in harsh environments; it can operate reliably in temperatures between -20 and +135degC.
The transducer is available with a choice of electronics modules, EICT or EICTM, that feature a highly stable output and fast response. The advanced electronics are EMC compliant and the EICT module is supplied with a DIN rail attachment on the enclosure. The EICTM module is housed in a metal enclosure that is sealed to IP68. Both modules can be located at up to 10m away from the transducer in the hostile environment, and provide a standard output voltage signal of 0.5-4.5V DC that can be configured to match the transducer stroke, from a 10-60V DC unregulated supply. Additional plug-in cards can be supplied to extend the range of analogue voltage outputs and also provide a 4-20mA current output or digital PWM output.
Penny & Giles Controls Ltd (Curtiss-Wright)
15 Enterprise Way, Aviation Park West
+44 (0)1202 0341000