{"product_id":"bently-nevada-330850-91-05-proximitor-sensor","title":"Bently Nevada 330850-91-05 Proximitor Sensor","description":"\u003ch2\u003eBently Nevada 330850-91-05 Proximitor Sensor\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eBently Nevada 330850-91-05\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e3300 XL 25 mm\u003c\/strong\u003e Proximitor Sensor, serves as the primary \u003cstrong\u003e3300 XL\u003c\/strong\u003e Proximitor Sensor utilized to execute signal conditioning for large-scale displacement measurements across machinery protection platforms. The module accepts high-frequency inputs from a 25 mm eddy-current probe and provides a linear voltage output proportional to the physical gap distance for tracking differential expansion.\u003c\/p\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\u003e330850-91-05\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\u003e0.2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e8.8 x 3.5 x 7 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-51 to +100 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-51 to +105 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eRequires nominal -24 VDC input supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal System Length\u003c\/td\u003e\n\u003ctd\u003e9.0 meters (29.5 feet) configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLinear Range\u003c\/td\u003e\n\u003ctd\u003e12.7 mm (500 mils)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAverage Scale Factor\u003c\/td\u003e\n\u003ctd\u003e0.787 V\/mm (20 mV\/mil) nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAgency Approval\u003c\/td\u003e\n\u003ctd\u003eMultiple Approvals\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 \u0026amp; Rotor Dynamics\u003c\/h3\u003e\n\u003cp\u003eThe 3300 XL 25 mm sensor utilizes specialized eddy-current probe scaling to handle an extended linear range of 12.7 mm, generating a nominal Average Scale Factor (ASF) of 0.787 V\/mm. During field calibration, matching the sensor to a 9.0-meter system length requires rigid gap voltage validation (-10 VDC targets) across the mid-point of the physical span. This extended calibration envelope is necessary to accurately track long-stroke rotor dynamics and differential expansion on steam turbine casings, while internal shielding ensures cross-talk suppression between adjacent complementary sensors viewing the same measurement collar.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can this sensor be paired with a standard 3300 XL 8 mm proximity probe?\u003c\/p\u003e\n\u003cp\u003eA: No. The internal oscillator circuit and electrical scaling parameters of the 330850-91-05 are factory tuned specifically for the 3300 XL 25 mm probe. Pairing this device with an incorrect probe diameter will invalidate the scale factor and cause severe measurement tracking errors.\u003c\/p\u003e\n\u003cp\u003eQ: What are the primary dual-transducer mounting options supported by this device's scale factor?\u003c\/p\u003e\n\u003cp\u003eA: The sensor supports standard configurations including: dual transducers observing the same side of a collar for redundancy, complementary inputs on opposite sides of a collar to effectively double the measurable range, or ramp-tracking arrangements designed to compensate for cross-axis radial shaft movement.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIN-Rail and Plate Isolation\u003c\/strong\u003e: Mount the Proximitor Sensor onto a standard 35 mm DIN rail or high-density bulkhead plate. Ensure the housing is electrically isolated from structural machine ground to prevent earth-loop noise injection into the signal path.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoaxial Terminal Torquing\u003c\/strong\u003e: Connect the 9.0-meter extension cable to the miniature coaxial interface. Ensure the coupling is secured finger-tight; do not utilize mechanical pliers which may crimp the internal dielectric layer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eField Potentiometer Field Limits\u003c\/strong\u003e: The zero and span curves are factory-calibrated. Field personnel must not alter the internal potentiometers unless performing a full bench re-verification with a calibrated micrometer kit and specific target metallurgy.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":44323541844067,"sku":null,"price":180.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/2775\/3315\/files\/330850-91-05-1_4d9dfe26-70bf-42cb-afc0-6b0e344d47f0.jpg?v=1783386479","url":"https:\/\/precisemodule.com\/products\/bently-nevada-330850-91-05-proximitor-sensor","provider":"Precise Module Ltd.","version":"1.0","type":"link"}