{"product_id":"bently-nevada-330850-50-05-proximitor-sensor-2","title":"Bently Nevada 330878-90-00 3300 XL 50 mm Proximitor Sensor","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Bently Nevada 330878-90-00 is a 3300 XL 50 mm Proximitor Sensor designed for high-precision, non-contact position measurement in industrial rotating machinery. As a core component of the 3300 XL 50 mm Proximity Transducer System, it is specifically engineered to measure differential expansion (DE) or rotor expansion (RX) in large steam turbine generators. This system monitors the critical difference in thermal growth rates between the turbine rotor and the machine stator casing.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Configuration:\u003c\/strong\u003e Includes a 50 mm probe, extension cable, and the 3300 XL 50 mm Proximitor Sensor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Linear Range:\u003c\/strong\u003e Provides a maximum linear range of 27.9 mm (1100 mils), the longest in the Bently Nevada eddy current transducer line.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced RFI\/EMI Immunity:\u003c\/strong\u003e Designed for high-frequency radio signal immunity, meeting European CE mark requirements without special mounting considerations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Versatility:\u003c\/strong\u003e Features a thin design suitable for high-density DIN-rail or traditional panel mount configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Connectivity:\u003c\/strong\u003e Equipped with SpringLoc terminal strips for tool-free, reliable field wiring and gold-plated ClickLoc connectors.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteam \u0026amp; Gas Turbines:\u003c\/strong\u003e Monitoring thermal growth and rotor vibration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentrifugal \u0026amp; Process Compressors:\u003c\/strong\u003e Shaft stability monitoring in high-pressure oil, gas, and chemical environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge Industrial Pumps:\u003c\/strong\u003e Detecting bearing friction and misalignment in boiler feed and water pumps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenerators \u0026amp; Alternators:\u003c\/strong\u003e Protection against electrical faults that cause rotor imbalance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge Fans \u0026amp; Blowers:\u003c\/strong\u003e Monitoring cooling tower and induced-draft fan performance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003e330878-90-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Length\u003c\/td\u003e\n\u003ctd\u003e9.0 meters (29.5 feet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 degC to +120 degC (-40 degF to +248 degF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-50 degC to +150 degC (-58 degF to +302 degF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e-24 V DC +\/- 10%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDynamic Response\u003c\/td\u003e\n\u003ctd\u003eUp to 10 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApprovals\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Length:\u003c\/strong\u003e The 330878-90-00 requires a precise 9.0-meter total electrical loop length. The combined physical length of the probe and extension cable must match this requirement to maintain calibration accuracy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Care:\u003c\/strong\u003e Keep disposable connector protectors on the gold-plated ClickLoc connectors during cable routing to prevent contamination.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e The unit supports both DIN-rail and panel mounting. Ensure the mounting surface is clean and secure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandling:\u003c\/strong\u003e As a precision electronic sensor, handle with care to avoid damage to the probe tip or connector pins. Always power down the system before disconnecting or connecting the sensor.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQs\u003c\/h3\u003e\u003ch3\u003eWhat is the 330878-90-00?\u003c\/h3\u003e\u003cp\u003eThe Bently Nevada 330878-90-00 is a 3300 XL 50 mm Proximitor Sensor used for non-contact vibration and position measurement in industrial machinery.\u003c\/p\u003e\u003ch3\u003eWhat is the 330878-90-00 designed to measure?\u003c\/h3\u003e\u003cp\u003eIt is specifically engineered for measuring differential expansion (DE) or rotor expansion (RX) in large steam turbine generators.\u003c\/p\u003e\u003ch3\u003eDoes this sensor require special shielded conduit?\u003c\/h3\u003e\u003cp\u003eNo, the 3300 XL Proximitor Sensor has high RFI\/EMI immunity, satisfying European CE mark approvals without requiring special shielding or metallic housings.\u003c\/p\u003e\u003ch3\u003eIs the 330878-90-00 compatible with older systems?\u003c\/h3\u003e\u003cp\u003eYes, it is designed for both high-density DIN-rail installation and traditional panel mounts, sharing the same 4-hole mounting footprint as older designs.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":50697913401596,"sku":"330878-90-00","price":70.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_610e8575-459d-4597-b5e8-df063f05dc47.jpg?v=1785122652","url":"https:\/\/www.electronicplc.com\/es\/products\/bently-nevada-330850-50-05-proximitor-sensor-2","provider":"Electronic PLC","version":"1.0","type":"link"}