Celesco Enhances Cable-Extension Position Sensors

Celesco's SR1 series of string pot sensors, available from Variohm Eurosensor, are now available with an incremental encoder measurement source for industrial position sensing applications. The SR1E has a measuring range up to 3m with a resolution of 100 pulses per 25mm or travel (+/-2 pulses). With IP67 protection rating, its touch polycarbonate enclosure is built for outdoor and wet environment applications in construction equipment and industrial position sensing, and includes built-in mounting flexibility where the user can freely select mounting position, cable exit and connector orientation on installation.

The Celesco SR1 range now includes encoder, voltage divider and user-programmable 4-20mA and VDC versions with electrical and mechanical flexibility that allows users to select a single low-cost product solution across many general purpose applications for cable-extension-based position sensing. The 'one-size-fits-all' SR1 range can eliminate the customers' need to specify and purchase multiple stroke ranges and offer benefits of simplified stock and lower unit cost. Specific to the SR1E encoder version, a 5-30VDC push-pull driver covers a wide choice of supply voltages and electrical connection is via an M12 four-pin connector with mating plug supplied - 4m cable sets are available on request.

The maximum velocity for the sensor is 2m/sec with maximum acceleration at 10G with an operating temperature from -20C to +85C. The overall accuracy for SR1E is +/- 0.1 per cent FS and repeatability to +/- 0.05 per cent FS. Custom encoder resolutions are also available on request. Installation is straightforward with no critical alignment required. The nylon-coated stainless steel cable is fully spring loaded, is easily attached to the object under motion and fully retracts into the body of the SR1E, ensuring a compact installation envelope of around 200 x 120 x 100mm.

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