Sealed LVDT Sensors Simplify Field Integration

Oct. 8, 2008
For quick deployment in the field, four series of hermetically sealed LVDTs offer 4 mA-to-20 mA I/O and support digital indicators, host computer-based data processing, and QC data collection. The components are configurable for either loop-powered

For quick deployment in the field, four series of hermetically sealed LVDTs offer 4 mA-to-20 mA I/O and support digital indicators, host computer-based data processing, and QC data collection. The components are configurable for either loop-powered 2-wire or externally powered 3-wire sourcing outputs and specify a maximum linearity error of 0.1% over their full output range. For mechanical position measurement where a hard connection can be made to the test piece, the HSI 750 and HSIR 750 series free-core LVDTs provide a 4 mA-to-20 mA current-loop output. Available in ranges from 2.5 mm to 500 mm, these 19-mm diameter LVDTs are available as either blind bore units (HSI 750 Series) terminated in a glass-sealed axial connector or in a through-bore design (HSIR 750 Series) with the connector mounted radially. For applications where a hard mechanical connection cannot be made, the GHSI 750 and GHSIR 750 series LVDTs employ a spring-loaded shaft connected to the core of the LVDT that runs through a sleeve bearing. The probe shaft is extended by a spring exerting a nominal force of 6 oz. to 20 oz. depending upon total range. A mating connector plug comes with all HSI, HSIR, GHSI, and GHSIR 750 series sensors. MACRO SENSORS, Pennsauken, NJ. (856) 662-8000.

Company: MACRO SENSORS

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