{"product_id":"21504-00-52-10-02-bently-nevada-proximity-sensors-3300-series","title":"21504-00-52-10-02 Bently Nevada Proximity Sensors 3300 Series","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe Bently Nevada 21504-00-52-10-02 is a robust 8mm proximity probe designed for demanding industrial vibration monitoring applications. As an integral component of the legacy 3300 Proximity Transducer System, this probe is engineered to deliver highly accurate, non-contact measurements of shaft radial vibration, axial thrust position, and rotor speed.\u003c\/p\u003e\n\u003cp\u003eIn critical machinery environments—such as power generation turbines, centrifugal compressors, and industrial blowers—the 21504 series probe provides the essential data required for condition-based maintenance. Its high linearity and frequency response ensure that machine protection systems receive clean, reliable signals, preventing costly unplanned outages. When you buy this genuine Bently Nevada part, you are investing in decades of proven engineering excellence, ensuring that your machinery protection loop maintains its factory-certified performance levels.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNon-Contact Precision:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 8mm tip diameter provides excellent sensitivity for detecting minute changes in the gap between the probe tip and the target shaft.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRugged Industrial Design:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBuilt to withstand the harsh conditions of turbine enclosures, including exposure to lube oils, high temperatures, and high-pressure steam\/gases.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIndustry-Standard Linearity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCalibrated to ensure a linear output, which is critical for consistent alarm and shutdown setpoints in protection racks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLegacy System Support:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSpecifically designed for seamless integration with the established 3300-series transducer infrastructure, allowing for easy replacement and maintenance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh EMI Immunity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEngineered with shielded cabling to minimize noise interference, providing high signal-to-noise ratio performance even in electrically noisy industrial areas.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Model\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e21504-00-52-10-02\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eManufacturer\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBently Nevada\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProbe Diameter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSystem Application\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3300 Transducer Series\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eUnthreaded Length\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCase Length\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e52 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTotal System Length\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.0 meter\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eConnector Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eStandard Coaxial Connector\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.15 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e22.0 x 20.0 x 4.0 cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTariff Code\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8537101190\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCountry of Origin\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUSA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eModel Configuration Explanation\u003c\/h3\u003e\n\u003cp\u003eThe part number 21504-00-52-10-02 is categorized to define specific mechanical dimensions and connectivity options:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e21504:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBase model identifier for 8mm proximity probes in the 3300 series.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e-00:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIndicates 0mm of unthreaded length.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e-52:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSpecifies the overall probe case length (52mm).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e-10:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDenotes a 1.0-meter system length.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e-02:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eStandard coaxial connector type for integration into the 3300 system loop.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRadial Vibration Monitoring:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIdentifying bearing wear, shaft misalignment, and rotor instability in steam and gas turbines.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAxial Position (Thrust) Monitoring:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDetecting thrust bearing wear in compressors to prevent catastrophic blade-to-casing contact.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRotor Speed Measurement:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCapturing accurate keyphasor data for phase analysis and balancing of rotating equipment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Speed Industrial Pumps:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eProviding essential health metrics for pumps operating under high-load\/high-pressure conditions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSystem Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe 21504-00-52-10-02 probe is fully compatible with the Bently Nevada 3300 system series, including associated Proximitor sensors, extension cables, and monitoring racks (such as the 3300 and 3500 series when properly integrated). Proper system length matching (probe, extension cable, and Proximitor) is mandatory to maintain the linearity and accuracy of your vibration measurements.\u003c\/p\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003col class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHousing Preparation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEnsure the mounting hole is cleaned of debris and the threads match the probe specifications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGap Setting:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUse a high-quality digital multimeter to monitor the DC gap voltage at the Proximitor output. The standard practice is typically setting the gap to -1.25 Vdc, though specific machine requirements may vary.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLocking:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOnce the optimal gap is reached, firmly tighten the jam nut. Use a thread locking compound if required by site safety standards to prevent loosening due to machinery vibration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCabling:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRoute the coax cable through protective conduits, avoiding sharp bends that could cause internal shielding damage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eValidation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eConduct a full loop verification check to ensure that physical probe displacement translates into the expected electrical signal in your control rack.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eProduct Advantages\u003c\/h3\u003e\n\u003cp\u003eChoosing genuine Bently Nevada parts through Maxwell PLC provides:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGuaranteed Compatibility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNo guesswork regarding signal response curves or connector interface compatibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRegulatory Compliance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOur genuine parts meet API 670 standards, which is often a requirement for insurance and safety auditing in industrial plants.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eReliability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eReduced risk of \"infant mortality\" or signal drift associated with counterfeit\/repaired sensors.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cp\u003eAs an experienced Bently Nevada supplier, we keep the 21504-00-52-10-02 in stock to assist with emergency maintenance and plant shutdowns. Please contact our sales team to request a quote or to verify bulk pricing options. Our goal is to provide the Industrial Automation Spare Parts you need with the shortest possible lead time.\u003c\/p\u003e\n\u003ch3\u003eLogistics and Shipping\u003c\/h3\u003e\n\u003cp\u003eSafety is paramount when handling sensitive electronic sensors. Every 21504 probe is packed in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eanti-static industrial packaging\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto prevent electrostatic discharge damage and buffered with impact-resistant materials to ensure it reaches your facility in factory-perfect condition. We provide global tracking for all shipments departing from our Xiamen, China logistics hub.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose Maxwell PLC\u003c\/h3\u003e\n\u003cp\u003eMaxwell PLC offers a unique blend of technical expertise and supply chain efficiency. With 50 years of collective experience, we are not just a supplier; we are your partners in machine protection. We pride ourselves on having genuine parts in stock and providing the technical documentation you need to ensure a successful installation.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs the 21504-00-52-10-02 in stock?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, we maintain an active inventory of this model to support urgent client needs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current price for this proximity probe?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePrices fluctuate based on inventory levels and procurement volume. Contact us for a formal quotation today.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAre these genuine Bently Nevada parts?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, we supply 100% authentic Bently Nevada products, ensuring full compatibility with your systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I replace a legacy 3300 probe with this one?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, it is designed for the 3300 series system; verify your total system length requirements before ordering.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the shipping lead time?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMost in-stock orders are processed and dispatched within 24 hours of confirmation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDo you provide shipping worldwide?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, we ship to all major industrial locations globally via reputable courier services.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I ensure the system is correctly calibrated?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe provide technical resources and can guide you through the calibration process for the 3300 system.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs the probe suitable for hazardous areas?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis specific part number configuration does not carry hazardous area ratings; please contact us if you require ATEX\/CSA-rated versions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat if the probe is damaged during installation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eProper installation is critical. We recommend following the Bently Nevada user manual strictly to avoid voiding component integrity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDo you offer technical support for probe selection?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAbsolutely. Our engineering team can help you review your machine drawings to confirm the correct probe configuration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRelated Models\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e21504-00-52-05-02 (0.5m system length)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e330103-00-06-10-02-00 (3300 XL alternative)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e330180-50-00 (3300 XL Proximitor)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e330130-080-10-00 (8m Extension Cable)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":45518886568109,"sku":"21504-00-52-10-02","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/bently-nevada-21504-00-52-10-02-probe-proximity-vibration-8mm-jcsfpsg4ahw.jpg?v=1766981093","url":"https:\/\/www.maxwellplc.com\/products\/21504-00-52-10-02-bently-nevada-proximity-sensors-3300-series","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}