{"product_id":"174985-00-12-10-underwater-sensor-bently-nevada-3300-xl-25mm","title":"174985-00-12-10 Underwater Sensor Bently Nevada 3300 XL 25mm","description":"\u003ch3\u003eExecutive Summary\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003e174985-00-12-10\u003c\/strong\u003e\u003c\/span\u003e is an extended-range eddy current sensor engineered for critical machinery protection under continuous fluid submersion. Part of the \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eBently Nevada 3300 XL 25mm Series\u003c\/strong\u003e\u003c\/span\u003e, this transducer delivers non-contact shaft displacement data across long gaps where standard 8mm probes lack sufficient measuring margin.\u003c\/p\u003e\n\u003cp\u003eConstructed with a 1.25-12 UNF threaded 304 Stainless Steel casing and a protective Tefzel armor tube, the \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003e174985\u003c\/strong\u003e\u003c\/span\u003e probe shields signal conductors against non-corrosive process liquids and pressurized lubricants.\u003c\/p\u003e\n\u003ch3\u003eCore Architecture \u0026amp; Operating Principles\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003e3300 XL 25mm Probe\u003c\/strong\u003e\u003c\/span\u003e operates on high-frequency electromagnetic induction principles. Radio frequency excitation generated by a matching Proximitor driving circuit creates a magnetic field at the coil tip. Dynamic movements of conductive target metals induce eddy currents, altering RF field amplitude and yielding a linear DC voltage output proportional to target distance.\u003c\/p\u003e\n\u003cp\u003eBecause of its larger 25mm tip diameter, the \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003e174985-00-12-10\u003c\/strong\u003e\u003c\/span\u003e maintains an extended linear range, making it ideal for large-diameter shafts, high differential expansion zones, or structural locations where generous mechanical installation clearances are required.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 15px 0px; height: 411.6px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: rgb(248, 249, 250); height: 19.6px;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); width: 30%; height: 19.6px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); height: 19.6px;\"\u003e\u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eBently Nevada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); height: 19.6px;\"\u003e\u003cstrong\u003eProduct Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); height: 19.6px;\"\u003e\u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003e3300 XL 25mm Series\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: rgb(248, 249, 250); height: 19.6px;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); height: 19.6px;\"\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); height: 19.6px;\"\u003e\u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003e174985-00-12-10\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); height: 19.6px;\"\u003e\u003cstrong\u003eTransducer Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); height: 19.6px;\"\u003eSubmerged Eddy Current Proximity Probe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: rgb(248, 249, 250); height: 19.6px;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); height: 19.6px;\"\u003e\u003cstrong\u003eLinear Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); height: 19.6px;\"\u003e12.7 mm (500 mils) linear measuring span\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); height: 39.2px;\"\u003e\u003cstrong\u003eScale Factor \/ Sensitivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); height: 39.2px;\"\u003e0.787 V\/mm (20 mV\/mil) nominal system output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: rgb(248, 249, 250); height: 58.8px;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); height: 58.8px;\"\u003e\u003cstrong\u003eLinearity \u0026amp; Incremental Scale Factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); height: 58.8px;\"\u003eConforms to API 670 standards across full linear range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); height: 19.6px;\"\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); height: 19.6px;\"\u003e0 Hz (DC) to 10 kHz (+0, -3 dB limit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: rgb(248, 249, 250); height: 39.2px;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); height: 39.2px;\"\u003e\u003cstrong\u003eTarget Material Standard\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); height: 39.2px;\"\u003eAISI 4140 Steel (Custom calibration available for other alloys)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); height: 19.6px;\"\u003e\u003cstrong\u003eMechanical Threading\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); height: 19.6px;\"\u003e1.25-12 UNF main thread case profile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: rgb(248, 249, 250); height: 19.6px;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); height: 19.6px;\"\u003e\u003cstrong\u003eCase Construction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); height: 19.6px;\"\u003e304 Stainless Steel housing with Tefzel outer tubing armor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); height: 19.6px;\"\u003e\u003cstrong\u003ePressure Limit Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); height: 19.6px;\"\u003eSeals up to 34 Bar (500 psi) Nitrogen static pressure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: rgb(248, 249, 250); height: 19.6px;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); height: 19.6px;\"\u003e\u003cstrong\u003eTemperature Envelope\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); height: 19.6px;\"\u003e-51 °C to +177 °C (-60 °F to +351 °F) operational range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); height: 39.2px;\"\u003e\u003cstrong\u003eCable Shielding \u0026amp; Noise Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); height: 39.2px;\"\u003eIntegrated coax braid protecting against local EMI\/RFI interference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: rgb(248, 249, 250); height: 39.2px;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); height: 39.2px;\"\u003e\u003cstrong\u003eHazardous Location Approvals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(222, 226, 230); height: 39.2px;\"\u003eEx ia IIC T5...T1 Ga (Zone 0\/Class I Div 1), Ex ec IIC T5...T1 Gc (Zone 2\/Class I Div 2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003ePart Number Configuration Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003e174985-00-12-10\u003c\/strong\u003e\u003c\/span\u003e code defines precise mechanical geometry and electrical cable lengths for specialized vessel entry:\u003c\/p\u003e\n\u003cul style=\"list-style-type: none; padding-left: 0;\"\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003e174985\u003c\/strong\u003e - Sealed Case 25mm Submerged Probe (1.25-12 UNF thread, Tefzel Armor Sheath)\n\u003cul style=\"list-style-type: square; margin-top: 4px; padding-left: 25px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e00\u003c\/strong\u003e [Option A - Unthreaded Length]: \u003cstrong\u003e0.0 inches\u003c\/strong\u003e (Fully threaded case profile; configurable from 0.0 to 8.9 in in 0.1 in steps)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12\u003c\/strong\u003e [Option B - Overall Case Length]: \u003cstrong\u003e1.2 inches\u003c\/strong\u003e (Minimum case body length; configurable from 1.2 to 9.9 in in 0.1 in steps)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10\u003c\/strong\u003e [Option C - Total Length]: \u003cstrong\u003e1.0 meter (3.3 feet)\u003c\/strong\u003e system cable length\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Guidelines \u0026amp; Engineering Best Practices\u003c\/h3\u003e\n\u003cp\u003eProper physical setup guarantees linear response and guards against mechanical damage in submerged environments.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTarget Side Clearance:\u003c\/strong\u003e Because 25mm sensing heads emit wide RF fields, maintain a minimum target diameter equal to or greater than 67 mm (2.63 in). Ensure side wall clearance of at least 75 mm (3.0 in) to prevent field distortion from adjacent structural metal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical Thread Engagement:\u003c\/strong\u003e Torque the 1.25-12 UNF stainless steel threads to spec using appropriate anti-seize compound verified for process fluid compatibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConduit Termination:\u003c\/strong\u003e Secure the Tefzel protective sheath so that physical movement or fluid turbulence does not chafe the tubing against machine walls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Dry Zone Isolation:\u003c\/strong\u003e Run the cable end out of the wet chamber. Terminate the coaxial connector in an IP66\/NEMA 4X dry junction enclosure. Never submerge the cable connector.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTarget Machinery, Applications \u0026amp; Diagnostic Capabilities\u003c\/h3\u003e\n\u003cp\u003eEngineers specify the \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003e174985-00-12-10\u003c\/strong\u003e\u003c\/span\u003e transducer for high-load heavy rotating machinery under severe environmental conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTarget Equipment \u0026amp; Scenarios:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLarge hydro-turbine generator shaft guide bearings operating flooded.\u003c\/li\u003e\n\u003cli\u003eHeavy multi-stage submerged boiler feed water pumps.\u003c\/li\u003e\n\u003cli\u003eMarine propulsion shafting and submerged gear line assemblies.\u003c\/li\u003e\n\u003cli\u003eSubsea pumping stations and wet-gas compressor housings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDiagnostic Capabilities:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDifferential Expansion Monitoring:\u003c\/strong\u003e Tracks thermal growth differences between heavy rotor shafts and outer machine casings during start-up cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAxial Thrust Position Tracking:\u003c\/strong\u003e Detects severe thrust bearing wear before rotor-to-stator mechanical contact occurs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Frequency Peak-to-Peak Displacement:\u003c\/strong\u003e Measures large dynamic shaft excursions on slow-speed heavy industrial shafts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSystem Integration \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003e174985-00-12-10\u003c\/strong\u003e\u003c\/span\u003e probe integrates into standard machine monitoring architectures:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eBently Nevada 3300 XL 25mm\u003c\/strong\u003e\u003c\/span\u003e Proximitor Sensors (e.g., matched 1.0m total system calibration units).\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eBently Nevada 3500\u003c\/strong\u003e\u003c\/span\u003e Machinery Protection Racks utilizing \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003e3500\/42M\u003c\/strong\u003e\u003c\/span\u003e or \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003e3500\/22M\u003c\/strong\u003e\u003c\/span\u003e monitoring modules.\u003c\/li\u003e\n\u003cli\u003eLegacy \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eBently Nevada 3300\u003c\/strong\u003e\u003c\/span\u003e monitoring hardware configured for 20 mV\/mil scale factor input.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eGlobal PLC Spare HUB's Insight\u003c\/h3\u003e\n\u003cp\u003eWhen selecting the \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003e174985-00-12-10\u003c\/strong\u003e\u003c\/span\u003e probe for submerged duty, pay close attention to two critical mechanical factors:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1. Chloride Stress Corrosion Avoidance:\u003c\/strong\u003e The case of the \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003e174985\u003c\/strong\u003e\u003c\/span\u003e uses 304 Stainless Steel. While highly resilient in hydraulic oil, raw freshwater, and boiler fluids, 304 SS susceptible to rapid pitting corrosion and stress cracking in brackish or marine saltwater environments. For ocean or high-salinity applications, specialized titanium or high-nickel alloy modifications are required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Target Area Miscalculations:\u003c\/strong\u003e Site technicians upgrading from an 8mm probe to a 25mm probe often forget that the 25mm head requires a significantly larger metal target surface. If the shaft collar or flat target area is smaller than 67 mm in diameter, the probe's scale factor will deviate from the nominal 20 mV\/mil rating, introducing measurement error into your 3500 system configuration.\u003c\/p\u003e\n\u003ch3\u003eLogistics, Packaging \u0026amp; Warranty Terms\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Guarantee:\u003c\/strong\u003e Supplied with comprehensive \u003cstrong\u003e12 Months Warranty\u003c\/strong\u003e protection covering manufacturing defects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDispatch Lead Time:\u003c\/strong\u003e In-stock units process quickly with guaranteed shipment within 24-48 hours.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlobal Express Courier Delivery:\u003c\/strong\u003e Expedited global air freight handling via \u003cstrong\u003eFedEx\u003c\/strong\u003e, \u003cstrong\u003eUPS\u003c\/strong\u003e, or \u003cstrong\u003eDHL\u003c\/strong\u003e directly to job sites.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging Integrity:\u003c\/strong\u003e Ships in heavy-duty ESD shielding containers with rigid thread caps protecting target tips.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSelection Guide \u0026amp; Technical FAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSelection Guide: When should I choose the 25mm probe over an 8mm version?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eChoose a 25mm probe like the \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003e174985\u003c\/strong\u003e\u003c\/span\u003e when your displacement measuring span exceeds 2.0 mm (80 mils), up to 12.7 mm (500 mils). It is ideal for differential expansion or heavy shaft thrust applications where target position moves over a wide mechanical range.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does total system length affect Proximitor matching for the \u003cspan style=\"color: #0056b3;\"\u003e174985-00-12-10\u003c\/span\u003e?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis transducer option has a 1.0-meter integrated cable. You must pair it with the appropriate extension cable and 25mm Proximitor driver tuned specifically for a total system length of either 5.0 meters or 9.0 meters. Mismatched cable lengths compromise signal linearity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the Tefzel protection tubing be cut or shortened during installation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The Tefzel armor tubing is factory sealed to the 304 Stainless Steel case body to maintain the 34 Bar pressure boundary. Cutting or altering the tubing destroys the fluid seal and voids warranty coverage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat zero-gap voltage setting is recommended during baseline installation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBecause the 25mm system features a 20 mV\/mil sensitivity scale across 500 mils, the mid-scale gap point typically corresponds to -7.0 to -9.0 VDC output at the Proximitor test points. Always consult your specific machine calibration curve prior to final lock-nut torquing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I handle probe replacement if process fluid pressure exceeds 34 Bar (500 psi)?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe standard \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003e174985\u003c\/strong\u003e\u003c\/span\u003e rating seals static pressures up to 34 Bar Nitrogen equivalent. For high-pressure casing penetrations exceeding 500 psi, specialized high-pressure sealing gland modifications or external thermowell style pressure sleeves must be ordered.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/174985.png?v=1788146558\" alt=\"\"\u003e\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":45394527715510,"sku":"174985-00-12-10","price":169.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/174985_5ad0a1f3-a616-478f-9d29-127eebfe04af.jpg?v=1788146572","url":"https:\/\/www.plcsparehub.com\/products\/174985-00-12-10-underwater-sensor-bently-nevada-3300-xl-25mm","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}