{"product_id":"bently-nevada-330878-91-00-3300-xl-50-mm-proximitor-sensor","title":"Bently Nevada 330878-91-00 3300 XL 50 mm Proximitor Sensor","description":"\u003cp\u003eThe \u003cstrong\u003eBently Nevada 330878-91-00\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e330878-91-00\u003c\/strong\u003e Proximitor Sensor, operates as a dedicated hardware component for sensing shaft displacement and vibration within machinery protection systems.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e330878\u003c\/strong\u003e: 3300 XL 50 mm Proximitor Sensor base model.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e91\u003c\/strong\u003e: 9.0 meters (29.5 feet) total system length, DIN mount configuration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e00\u003c\/strong\u003e: Agency approval option (none).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e330878-91-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eBently Nevada\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e3.0 kg (shipping weight)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard 3300 XL DIN mount housing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-51 deg C to +100 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e3300 XL loop-powered\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eA380 aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEddy-Current Probe Scaling and Rotor Dynamics\u003c\/h3\u003e\n\u003cp\u003eThe 330878-91-00 sensor converts high-frequency oscillation from the probe tip into a proportional voltage signal for rotor dynamics analysis. Achieving measurement precision requires rigorous gap voltage validation; the system is designed to target -10 VDC when the probe is set at the electrical center of its linear operating range. Deviations from this target indicate potential misalignment or target surface irregularities. Furthermore, to maintain effective signal fidelity, cross-talk suppression must be enforced by maintaining manufacturer-specified separation distances between adjacent probes to prevent frequency interference in the oscillator output.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the 9.0 meter system length be adjusted by trimming the coaxial cable?\u003c\/p\u003e\n\u003cp\u003eA: No. The system length is factory-calibrated based on the specific capacitance of the integral cable. Modifying the cable length alters the electrical characteristics of the oscillator circuit, leading to non-linear output and invalidating measurement accuracy.\u003c\/p\u003e\n\u003cp\u003eQ: Is this sensor compatible with high-temperature environments?\u003c\/p\u003e\n\u003cp\u003eA: The sensor is rated for operation up to +100 deg C. For installations exceeding this range, ensure proper air-flow or thermal isolation is provided to prevent premature failure of the internal electronics.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eEnsure the DIN-rail is securely mounted and bonded to the system common to maintain ground integrity.\u003c\/li\u003e\n\u003cli\u003eRoute the coaxial extension cable within dedicated conduits, ensuring a minimum distance of 30 cm from high-power AC or VFD cabling to minimize electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003eVerify that the system length matches the configuration parameter in the monitoring rack.\u003c\/li\u003e\n\u003cli\u003eUse a torque wrench on coaxial connectors, applying only finger-tight pressure plus one-quarter turn to prevent thread stripping or dielectric compression.\u003c\/li\u003e\n\u003cli\u003ePerform an initial gap voltage check using a digital multimeter at the monitor input to verify the baseline voltage before machine startup.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":43551766872154,"sku":"330878-91-00","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/330878-50-00_f57cb274-4c74-4baf-84de-e96569f8ebce.png?v=1782357083","url":"https:\/\/www.spareoil.com\/ar\/products\/bently-nevada-330878-91-00-3300-xl-50-mm-proximitor-sensor","provider":"SpareOil Automation","version":"1.0","type":"link"}