Celesco's SR1 series low-cost/high performance string pot sensors are now available with an incremental encoder measurement source. The SR1E, available exclusively from sensor specialists Variohm EuroSensor, has a measuring range up to 3 metres with a resolution of 100 pulses per 25 mm of travel (+/- 2 pulses). With IP67 protection rating its tough 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..20 mA 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 new SR1E encoder version, a 5...30 VDC push-pull driver covers a wide choice of supply voltages and electrical connection is via an M12 – 4-pin connector with mating plug supplied and 4 m cable sets are available on request.
The maximum velocity for the sensor is 2 m/sec with maximum acceleration at 10 g with an operating temperature from -20ºC to +85ºC. The overall accuracy for SR1E is +/- 0.1% F.S. and repeatability to +/- 0.05% F.S. Custom encoder resolutions are also available on request.
As with all string pot or cable extension sensors from Celesco, installation is very 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 100 mm (w x h x d).
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