{"product_id":"21504-00-52-05-02-proximity-transducer-bently-nevada","title":"21504-00-52-05-02 Proximity Transducer Bently Nevada","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong style=\"color: #0056b3;\"\u003e21504-00-52-05-02\u003c\/strong\u003e represents Bently Nevada's high-precision 8mm eddy current proximity sensor within the flagship 7200 series transducer family.\u003c\/p\u003e\n\u003cp\u003eEngineered for continuous machinery protection, this probe measures non-contact shaft vibration and axial position dynamically.\u003c\/p\u003e\n\u003cp\u003eIt provides critical dynamic measurement data for critical turbomachinery and rotating equipment monitoring systems.\u003c\/p\u003e\n\u003cp\u003eThe rugged 3\/8-24 threaded body resists industrial fluids, high temperatures, and severe mechanical stress effectively.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003ePart Number Configuration Breakdown\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eUnderstanding the exact option structure ensures precise replacement and mechanical fit in existing probe sleeves.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #0056b3;\"\u003e21504\u003c\/strong\u003e - 7200 Series 8mm Proximity Transducer Probe (3\/8-24 UNF Thread)\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e-00\u003c\/strong\u003e - Unthreaded Length Option: 0.0 inches (0 mm) fully threaded case body\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-52\u003c\/strong\u003e - Overall Case Length Option: 5.2 inches total thread length\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-05\u003c\/strong\u003e - Total Length Option: 0.5 meter (20 inches) integrated cable length\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-02\u003c\/strong\u003e - Connector Option: Miniature male coaxial connector (unarmored cable)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications Checklist\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe technical parameters below detail electrical performance, linearity, and signal sensitivity metrics.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification Category\u003c\/th\u003e\n\u003cth\u003eTechnical Parameter Value\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer \u0026amp; Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBently Nevada \/ \u003cstrong style=\"color: #0056b3;\"\u003e21504-00-52-05-02\u003c\/strong\u003e (7200 Series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProbe Tip Diameter \u0026amp; Thread\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8 mm Tip Diameter \/ 3\/8-24 UNF Standard Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLinear Measurement Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e80 mils (2.0 mm), starting ~10 mils (0.25 mm) from probe face\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eScale Factor Sensitivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200 mV\/mil (7.87 V\/mm) ±4% system calibrated (±9.5% interchangeable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem Linearity Error\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWithin 0.8 mils (0.02 mm) straight line fit (system calibrated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency Response Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 Hz to 10 kHz (0 to 600,000 CPM); -5% attenuation at 10 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Supply Requirements\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-17.5 VDC to -26 VDC at 12 mA maximum current draw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eEnvironmental Tolerance \u0026amp; Chemical Resilience\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe sensor tip withstands harsh operating environments across extreme temperature ranges.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProbe Operating Temperature:\u003c\/strong\u003e Operates continuously from -34°C to +177°C (-30°F to +350°F).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProximitor Sensor Operating Limits:\u003c\/strong\u003e Functions reliably from -51°C to +100°C (-60°F to +212°F).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHumidity Endurance:\u003c\/strong\u003e Operates in up to 95% relative humidity non-condensing environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical Resistance:\u003c\/strong\u003e Unaffected by contact with lube oil, water, air, ammonium hydroxide, 10% sulfuric acid, MEK, and DMF.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eSelection Comparison \u0026amp; Engineering Advice\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eWhen selecting 7200 series proximity probes, case length determination remains critical to avoid mechanical interference inside bearing housings.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eModel Part Number\u003c\/th\u003e\n\u003cth\u003eUnthreaded Length\u003c\/th\u003e\n\u003cth\u003eOverall Case Length\u003c\/th\u003e\n\u003cth\u003eCable Length\u003c\/th\u003e\n\u003cth\u003eKey Application Difference\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong style=\"color: #0056b3;\"\u003e21504-00-52-05-02\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.0 in (0 mm)\u003c\/td\u003e\n\u003ctd\u003e5.2 in\u003c\/td\u003e\n\u003ctd\u003e0.5 Meter\u003c\/td\u003e\n\u003ctd\u003eLong case length for deep bearing housing access.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.plcsparehub.com\/products\/21504-000-032-05-02-bently-nevada-7200-series-probe-vibration-transducer\" target=\"_blank\"\u003e\u003cstrong style=\"color: #0056b3;\"\u003e21504-000-032-05-02\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e0.0 in (0 mm)\u003c\/td\u003e\n\u003ctd\u003e3.2 in\u003c\/td\u003e\n\u003ctd\u003e0.5 Meter\u003c\/td\u003e\n\u003ctd\u003eShorter case length for shallow mounting brackets.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eEngineering Advice:\u003c\/strong\u003e Ensure the probe case length allows sufficient external thread exposure for locknut tightening without bottoming out inside the probe sleeve. Matching the target material magnetic properties ensures precise 200 mV\/mil scale factor alignment during calibration.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation \u0026amp; Wiring Guidelines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThread the \u003cstrong style=\"color: #0056b3;\"\u003e21504-00-52-05-02\u003c\/strong\u003e probe into the pre-drilled bracket until the gap voltage reaches -9.0 VDC to -11.0 VDC (center gap point).\u003c\/p\u003e\n\u003cp\u003eTighten the locknut to secure probe position against mechanical vibration during operation.\u003c\/p\u003e\n\u003cp\u003eConnect the miniature male coaxial connector to the matching 7200 series extension cable carefully.\u003c\/p\u003e\n\u003cp\u003eApply silicone self-amalgamating tape over coaxial connections to prevent oil intrusion in wet housings.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eServicing \u0026amp; Calibration Convenience\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe standardized 200 mV\/mil output permits rapid field replacement without complete re-calibration of matching 7200 Proximitor units.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eCertifications \u0026amp; Quality Standards\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCSA and BASEEFA certified for hazardous area industrial installations.\u003c\/li\u003e\n\u003cli\u003eCE compliant under European electromagnetic compatibility standards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePackage Contents, Warranty \u0026amp; Logistics\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eShips factory-sealed containing one brand new \u003cstrong style=\"color: #0056b3;\"\u003e21504-00-52-05-02\u003c\/strong\u003e probe with protective connector cap.\u003c\/p\u003e\n\u003cp\u003eIncludes a complete \u003cstrong\u003e12-month factory warranty\u003c\/strong\u003e covering operational integrity.\u003c\/p\u003e\n\u003cp\u003eOrders ship within \u003cstrong\u003e24 to 48 hours\u003c\/strong\u003e with worldwide express dispatch.\u003c\/p\u003e\n\u003cp\u003eAvailable express carriers include \u003cstrong\u003eFedEx, UPS, and DHL Express\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTarget Equipment \u0026amp; Industrial Applications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentrifugal Gas Compressors:\u003c\/strong\u003e Measures dynamic radial shaft vibration inside high-speed tilting-pad bearings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteam \u0026amp; Gas Turbines:\u003c\/strong\u003e Monitors axial rotor thrust position to prevent destructive internal blade-to-casing contact.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge Boiler Feed Pumps:\u003c\/strong\u003e Detects shaft orbit asymmetry and early sleeve bearing wear trends.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Gearboxes:\u003c\/strong\u003e Provides key vibration signals for predictive maintenance diagnostic software.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eDiagnostic Capabilities \u0026amp; Machine Health Monitoring\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe raw AC\/DC signal output feeds directly into Bently Nevada 3500 or System 1 machinery management software.\u003c\/p\u003e\n\u003cp\u003eDC voltage shifts indicate physical gap changes (thrust position movement or bearing wipe).\u003c\/p\u003e\n\u003cp\u003eAC voltage oscillations represent dynamic shaft vibration waveforms, identifying unbalance, misalignment, and oil whirl.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eGlobal PLC Spare HUB's Insight\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong style=\"color: #0056b3;\"\u003e21504-00-52-05-02\u003c\/strong\u003e probe remains an essential replacement component across power generation facilities worldwide.\u003c\/p\u003e\n\u003cp\u003eDuring a emergency overhaul on a multi-stage steam turbine, our team supplied this long-case 5.2-inch probe to replace an oil-damaged sensor.\u003c\/p\u003e\n\u003cp\u003eThe client avoided extended downtime because the exact thread depth permitted perfect center-gap setup without replacing outer sleeve adapters.\u003c\/p\u003e\n\u003cp\u003eWe always advise engineers to inspect coaxial connector tightness using torque wrenches to eliminate signal drift caused by loose cable joints.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical FAQ \u0026amp; Machinery Guidance\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: What is the primary functional difference between the 21504-00-52-05-02 and short-case probe variants?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA1: The 5.2-inch threaded case on the \u003cstrong style=\"color: #0056b3;\"\u003e21504-00-52-05-02\u003c\/strong\u003e extends deeper into thick bearing housings where standard 3.2-inch probes cannot reach terminal threads.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2: Why must I setting the probe gap voltage to approximately -10 VDC during physical installation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA2: A -10 VDC gap voltage places the sensor tip directly in the center of its 80 mil linear operating curve for maximum dynamic vibration headroom.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3: Can I connect this probe directly to a standard 4-20mA PLC analog input card?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA3: No, proximity probes output raw high-frequency signals; they require a matching Proximitor module to convert signals into 4-20mA loop currents or raw voltage outputs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ4: How does target shaft material composition affect the scale factor of the 21504-00-52-05-02 probe?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA4: Eddy current sensors calibrate specifically for AISI 4140 steel; non-magnetic or stainless steel shafts alter the scale factor and require special target calibration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ5: What diagnostic step should I take if the gap voltage reads -24 VDC continuously?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA5: A -24 VDC reading indicates an open circuit condition, typically caused by a loose coaxial connector, broken extension cable, or probe tip damage.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":45013980643510,"sku":"21504-00-52-05-02","price":130.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/BentlyNevada21504_12.jpg?v=1785227730","url":"https:\/\/www.plcsparehub.com\/products\/21504-00-52-05-02-proximity-transducer-bently-nevada","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}