{"product_id":"bently-nevada-330878-51-05-3300-xl-50-mm-proximitor-sensor","title":"Bently Nevada 330878-51-05 3300 XL 50 mm Proximitor Sensor","description":"\u003cp\u003eThe Bently Nevada 330878-51-05 is a 3300 XL 50 mm Proximitor Sensor engineered for high-precision, non-contacting displacement monitoring. As part of the 3300 XL transducer system, this sensor is specifically designed to measure differential expansion (DE) or rotor expansion (RX) in large steam turbine generators, where significant axial movement occurs between the rotor and the machine casing.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMaximum linear range of 27.9 mm (1100 mils), providing the longest linear measurement capability in the Bently Nevada eddy current transducer portfolio.\u003c\/li\u003e\n\u003cli\u003eConsists of a 50 mm probe, extension cable, and the 3300 XL 50 mm Proximitor Sensor.\u003c\/li\u003e\n\u003cli\u003eDesigned for high-accuracy tracking of extreme displacement in large rotating machinery.\u003c\/li\u003e\n\u003cli\u003eFeatures a 5.0-meter total system length and DIN-rail mounting configuration.\u003c\/li\u003e\n\u003cli\u003eConstructed with a durable A380 aluminum housing.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePower Generation: Monitoring steam turbine rotor-casing differential expansion during thermal transients.\u003c\/li\u003e\n\u003cli\u003eOil \u0026amp; Gas: High-precision position monitoring for large compressors and pumps.\u003c\/li\u003e\n\u003cli\u003eHeavy Industrial: Integration with 3500 series monitoring racks for stability analysis of large shafts.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Model\u003c\/td\u003e\n\u003ctd\u003e330878-51-05\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Length\u003c\/td\u003e\n\u003ctd\u003e5.0 meters (16.4 feet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eDIN Rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLinear Range\u003c\/td\u003e\n\u003ctd\u003e27.9 mm (1100 mils)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAgency Approvals\u003c\/td\u003e\n\u003ctd\u003eMultiple Approvals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Resistance\u003c\/td\u003e\n\u003ctd\u003e50 Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Material\u003c\/td\u003e\n\u003ctd\u003eA380 Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-51 degC to +100 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the system is powered down before connecting or disconnecting the Proximitor sensor.\u003c\/li\u003e\n\u003cli\u003eThe 50 mm probe requires a target area of at least 102 mm in diameter to maintain calibrated accuracy.\u003c\/li\u003e\n\u003cli\u003eFor differential expansion measurements, ensure proper alignment of the transducer relative to the target collar or ramp.\u003c\/li\u003e\n\u003cli\u003eWhen installing in high-EMI environments, ensure shielded cables are routed away from high-voltage power lines.\u003c\/li\u003e\n\u003cli\u003eVerify that the system length (5.0m) matches the calibrated extension cable to maintain signal integrity.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eWhat is the primary function of the 330878-51-05?\u003c\/h3\u003e\u003cp\u003eThis sensor is used for measuring differential expansion in large steam turbines, tracking the axial growth difference between the rotor and the stator.\u003c\/p\u003e\u003ch3\u003eWhat is the typical gap voltage?\u003c\/h3\u003e\u003cp\u003eUnder normal operating conditions with the shaft centered, the gap voltage is typically between -9 V and -11 V DC.\u003c\/p\u003e\u003ch3\u003eCan this be used with other probe sizes?\u003c\/h3\u003e\u003cp\u003eNo, this sensor is specifically calibrated for the 3300 XL 50 mm proximity probe and its matched extension cable system.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":51008795803900,"sku":"330878-51-05","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_b74aa11c-4a8c-43cf-b6c7-be76b0dcb607.jpg?v=1787588145","url":"https:\/\/www.electronicplc.com\/products\/bently-nevada-330878-51-05-3300-xl-50-mm-proximitor-sensor","provider":"Electronic PLC","version":"1.0","type":"link"}