{"product_id":"330851-02-000-060-10-01-05-bently-nevada-3300-xl-series-proximity-probe","title":"330851-02-000-060-10-01-05 Bently Nevada 3300 XL Series Proximity Probe","description":"\u003cp\u003eConfigured for high-temperature differential expansion and shaft position surveillance within steam turbine platforms, the \u003cstrong\u003eBently Nevada 330851-02-000-060-10-01-05\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e330851\u003c\/strong\u003e 3300 XL 25 mm Proximity Probe, operates as a dedicated hardware component for eddy-current displacement measurement across machinery protection systems.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBase Model Number: 330851 (3300 XL 25 mm Proximity Probe Assembly)\u003c\/li\u003e\n\u003cli\u003eProbe Case Type Option (-02): M30x2 thread configuration with 0 mm unthreaded length\u003c\/li\u003e\n\u003cli\u003eOverall Case Length Option (-000): 0.6 in case length parameter\u003c\/li\u003e\n\u003cli\u003eTotal Length Option (-10): 1.0 metre (3.3 feet) cable length\u003c\/li\u003e\n\u003cli\u003eArmor and Approval Options (-01-05): Includes stainless steel armor and multiple hazardous area approvals\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\u003e330851-02-000-060-10-01-05\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\u003eUnited States (USA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.34 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e2.8 x 2.8 x 115 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eUp to 200 deg C continuous (250 deg C intermittent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePowered via monitor rack supplying -17.5 VDC to -26 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncremental Scale Factor\u003c\/td\u003e\n\u003ctd\u003e0.787 V\/mm (20 mV\/mil) nominal response\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLinear Measurement Range\u003c\/td\u003e\n\u003ctd\u003e12.7 mm (500 mils)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eRotor Dynamics and Transducer Measurement Mechanics\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEddy-Current Probe Scaling: The 25 mm transducer utilizes high-frequency radio frequency circuitry to excite the probe tip coil, producing a linear voltage output proportional to the wide gap distance between the probe face and large turbine shaft targets.\u003c\/li\u003e\n\u003cli\u003eGap Voltage Validation: Field technicians must verify that the initial static operating point achieves exact voltage parameters using a calibrated multimeter during mechanical alignment to ensure linear response across the extended dynamic range.\u003c\/li\u003e\n\u003cli\u003eCross-Talk Suppression: Spatial isolation and high-frequency modulation design prevent electromagnetic interference when multiple large-format proximity probes are installed adjacently on complex turbine casings.\u003c\/li\u003e\n\u003cli\u003eRotor Dynamics Monitoring: Translates large-scale thermal growth, differential expansion, and axial rotor movement into high-fidelity electrical inputs for continuous machinery protection monitors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOrdering Info\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x 330851-02-000-060-10-01-05 330851 Proximity Probe Assembly\u003c\/li\u003e\n\u003cli\u003e1 x Matching 3300 XL 25 mm Extension Cable with SST Armor\u003c\/li\u003e\n\u003cli\u003e1 x Connector Protector and Installation Tool Kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMechanical Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTarget Material Verification: Ensure the monitored target consists of flat AISI 4140 steel with a minimum diameter of 61 mm (2.4 in) to maintain linear scaling accuracy.\u003c\/li\u003e\n\u003cli\u003eSliding Bracket Usage: Utilize a dedicated sliding bracket during commissioning to physically move the probe, simulating shaft motion and verifying system calibration.\u003c\/li\u003e\n\u003cli\u003eLocknut Torque and Safety Wire: Tighten the M30x2 threaded case locknut securely, utilizing pre-drilled safety wire holes to prevent loosening under severe turbine vibration.\u003c\/li\u003e\n\u003cli\u003eMoisture Protection Routing: Route the FluidLoc cable carefully through tight clearances using the removable ClickLoc connector collar while maintaining front and rear seal integrity against steam environment moisture.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the total nominal weight of the 330851 probe assembly?\u003c\/p\u003e\n\u003cp\u003eThe unit weighs approximately 0.34 kg.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat are the physical shipping package dimensions?\u003c\/p\u003e\n\u003cp\u003eThe shipping container measures 2.8 x 2.8 x 115 cm.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat linear measurement range does the 25 mm transducer provide?\u003c\/p\u003e\n\u003cp\u003eIt delivers an extended linear measurement range of 12.7 mm (500 mils).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the nominal scale factor for this 25 mm probe system?\u003c\/p\u003e\n\u003cp\u003eThe incremental scale factor is calibrated to 0.787 V\/mm, equivalent to 20 mV\/mil.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat maximum operating temperature can the probe withstand continuously?\u003c\/p\u003e\n\u003cp\u003eThe probe is rated for continuous operation in temperatures up to 200 deg C (392 deg F).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat intermittent temperature limit is supported by the sensor tip?\u003c\/p\u003e\n\u003cp\u003eIt can withstand intermittent high temperatures up to 250 deg C (482 deg F).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat primary machinery parameter does this transducer monitor?\u003c\/p\u003e\n\u003cp\u003eIt monitors differential expansion (DE) on mid-size to large steam turbine generators caused by differential thermal growth.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat shaft target dimensions are required for optimal accuracy?\u003c\/p\u003e\n\u003cp\u003eThe system requires a flat AISI 4140 steel target with a minimum diameter of 61 mm (2.4 in).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":46025260826797,"sku":"330851-02-000-060-10-01-05","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/xian-55_36b3a598-1c5a-47a6-9444-a53b45c330ca.jpg?v=1783667380","url":"https:\/\/www.maxwellplc.com\/products\/330851-02-000-060-10-01-05-bently-nevada-3300-xl-series-proximity-probe","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}