Multiple use of sensors

25 September, 2014

Hz, the robust LWG linear position sensor provides a resolution of better than 0.01 mm over a temperature range from -30degC to +100degC – with an operational life of more than 50 million movements. For this application the IP65 rated unit is actually mounted on the outside of the sideshift assembly on backlash-free pivot heads with the anodised aluminium housing and stainless steel actuating rod fully exposed to the elements. Electrical connection is through M12, IP67 rated sealed connectors. Across the LWG series, electrical stroke ranges from 50 mm to 750 mm are available. Completing the range of sensors supplied on the Robocrop InRow Weeder, Variohm’s EPT3100 Pressure and EPTT5100 combined pressure and temperature sensors are used to monitor the input and output hydraulic pressures and return temperature information from the machine. These pressure sensors feature high level ASIC output circuitry with a thin-film strain gauge pressure measuring cell covering a wide range of pressures. For the combined versions, temperature measurement in gas or liquid is via a PT1000 compatible sensor with a rated range of -50degC to +150degC. With IP 66 or IP67 sealing and a high strength stainless steel finish they feature industry-standard port interfaces with sleeved electrical cable and optional boot protection. Through both ranges, a wide choice of voltage and current output options is available. The sensors supplied to Garford are part of a comprehensive range of sensor technologies that Variohm EuroSensor designs, manufactures or sources for linear and rotary position, load, force and vibration measurement in demanding applications throughout industry, agriculture, construction, autosports and research. www.variohm.com

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