{"product_id":"21504-16-28-10-02-bently-nevada-21000-series-proximity-transducer","title":"21504-16-28-10-02 Bently Nevada 21000 Series Proximity Transducer","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe Bently Nevada 21504-16-28-10-02 is a legacy-grade proximity transducer designed for high-reliability vibration monitoring in critical rotating machinery. As part of the venerable 21000 series, this probe has long been a standard in industrial facilities for tracking shaft radial vibration and axial position. For plant engineers managing mature turbomachinery assets, the availability of these specific, time-tested components is vital for maintaining operational continuity without requiring complete system retrofits.\u003c\/p\u003e\n\u003cp\u003eWhen you buy 21504-16-28-10-02 sensors, you are investing in a proven measurement technology that has defined the standards for turbomachinery protection for decades. As a specialized Industrial Automation Spare Parts supplier, Maxwell PLC ensures that these genuine Bently Nevada parts remain in stock. Our commitment to providing authentic, factory-grade components helps maintenance teams avoid the risks associated with refurbished or non-original third-party hardware, ensuring that your machinery protection system remains fully compliant and accurate.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTime-Tested Performance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eA proven design utilized in critical infrastructure projects globally, offering reliable data acquisition for aging machinery.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNon-Contact Measurement:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEnables precise monitoring of high-speed rotating shafts without physical wear or impact on equipment operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRugged Construction:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDesigned to withstand the demanding mechanical and thermal conditions inherent in heavy industrial environments like refineries and power plants.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSeamless Legacy Integration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEngineered to fit existing mounting configurations, allowing for straightforward replacement in legacy monitoring racks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSignal Fidelity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eProvides stable, predictable output signals necessary for accurate vibration analysis and diagnostic troubleshooting.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\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\u003eModel Number\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e21504-16-28-10-02\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSeries\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e21000 Series\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProbe Tip 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\u003eCase Material\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAISI 303 Stainless Steel\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eThread Size\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3\/8-24 UNF-2A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eUnthreaded Case Length\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e16 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTotal Case Length\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e28 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSystem Length\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.0 m\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\u003eMiniature Coaxial\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTemperature Range\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-35°C to +177°C (-31°F to +350°F)\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\u003e0.32 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDimension\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e15.0 * 10.0 * 8.0 cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eModel Configuration Explanation\u003c\/h2\u003e\n\u003cp\u003eThe 21504-16-28-10-02 adheres to the Bently Nevada structured part numbering system:\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 the 21000 series proximity probe.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e16:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUnthreaded case length designation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e28:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOverall physical case length.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e10:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTotal system cable length (1.0 meter).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e02:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eConnector termination option.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\n\u003cp\u003eThe 21504 series remains a staple in several core industrial sectors:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLegacy Steam Turbines:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eProviding critical vibration input for older turbine control systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCentrifugal Compressors:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eReliable monitoring of rotor displacement in established gas processing lines.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLarge Industrial Fans:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEssential for identifying imbalance or bearing wear in large-scale air moving systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHydroelectric Infrastructure:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eServing in older generating units where original system specifications must be maintained.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSystem Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe 21504-16-28-10-02 is designed for compatibility with legacy Bently Nevada 21000-series proximity monitoring systems. These probes are the foundational elements for data acquisition in systems where modern 3300 XL components may require structural mounting adjustments. By sourcing this specific model, engineers can ensure that the electrical characteristics, such as input impedance and signal output range, remain consistent with the original system design.\u003c\/p\u003e\n\u003ch2\u003eInstallation Guidelines\u003c\/h2\u003e\n\u003col class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMounting Surface:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEnsure the probe mounting bracket is rigid to avoid introducing artificial vibration noise.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGap Verification:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAlways use a calibrated gap-setting tool to position the probe at the manufacturer’s specified gap distance from the shaft target.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTorque Control:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTighten the locknuts against the bracket firmly, but avoid excessive force that could damage the stainless steel casing or threads.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCable Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRoute cables away from high-voltage lines. Using metallic conduits is recommended to shield the coaxial cable from EMI\/RFI interference.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOutput Validation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVerify the DC gap voltage at the system terminal block upon completion of the installation to confirm the sensor is operating within the linear range.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eProduct Advantages\u003c\/h2\u003e\n\u003cp\u003eSourcing your Genuine Bently Nevada Parts from Maxwell PLC guarantees that you receive high-performance hardware that meets OEM specifications. Unlike non-branded sensors, the 21504 series ensures consistent electrical output, which is critical for long-term vibration analysis. When you use an authorized 21504-16-28-10-02 supplier, you eliminate the risks of system instability or false trips caused by subpar, imitation cabling or probe tips.\u003c\/p\u003e\n\u003ch2\u003eOrdering Information\u003c\/h2\u003e\n\u003cp\u003eWe are prepared to provide competitive 21504-16-28-10-02 price estimates to support your facility’s requirements. As a global Industrial Automation Spare Parts supplier, we specialize in hard-to-find and legacy components. Please submit your request to our sales department, and we will confirm the availability and lead time for your order.\u003c\/p\u003e\n\u003ch2\u003eLogistics and Shipping\u003c\/h2\u003e\n\u003cp\u003eWe understand the urgency often associated with legacy system maintenance. Every 21504-16-28-10-02 probe is carefully packaged in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eanti-static industrial packaging\u003c\/strong\u003e. This professional-grade packaging ensures the probe is protected against electrostatic discharge (ESD) and mechanical impacts during transport. We utilize reputable international couriers to provide secure, tracked shipping to your facility's doorstep.\u003c\/p\u003e\n\u003ch2\u003eWhy Choose Maxwell PLC\u003c\/h2\u003e\n\u003cp\u003eMaxwell PLC is dedicated to bridging the gap between legacy industrial technology and modern procurement needs. We possess the deep technical expertise required to verify that you are ordering the correct component for your machinery. By choosing us, you benefit from:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGenuine Parts:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGuaranteed authenticity for all Bently Nevada products.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInventory Depth:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eLarge stocks of critical legacy and current components.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eReliability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eProfessional service and technical support to ensure your system continues to run efficiently.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eIs the 21504-16-28-10-02 still in production?\u003c\/p\u003e\n\u003cp\u003eWe maintain a stock of this model for clients who need to maintain legacy systems, ensuring availability despite its older status.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan this probe be used in place of an 8mm 3300 XL probe?\u003c\/p\u003e\n\u003cp\u003eNo. The 21000 series and 3300 XL series have different electrical and mounting characteristics. Please check your system documentation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoes this part include mounting nuts?\u003c\/p\u003e\n\u003cp\u003eYes, our standard probe kits include the necessary locking nuts for installation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow fast can you ship to my site?\u003c\/p\u003e\n\u003cp\u003eWe prioritize dispatch and coordinate with global carriers to provide the fastest possible delivery to your location.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDo you provide technical support for installation?\u003c\/p\u003e\n\u003cp\u003eWe provide documentation and can assist with technical inquiries regarding sensor compatibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat does the \"-16\" in the part number refer to?\u003c\/p\u003e\n\u003cp\u003eIt specifies the unthreaded case length, which is crucial for mounting fitment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan I use a generic cable for this probe?\u003c\/p\u003e\n\u003cp\u003eWe advise against this. To maintain system accuracy and impedance, original Bently Nevada cables are required.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAre these probes refurbished?\u003c\/p\u003e\n\u003cp\u003eNo, all items supplied by Maxwell PLC are brand-new, factory-original parts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDo you offer volume discounts for legacy system upgrades?\u003c\/p\u003e\n\u003cp\u003eYes, contact our sales office to discuss procurement strategies for larger maintenance projects.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhy is the DC gap voltage important?\u003c\/p\u003e\n\u003cp\u003eIt tells you the physical distance between the probe and the shaft, confirming that the probe is in its linear operating range.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRelated Models\u003c\/h2\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eBently Nevada 21504-00-05-10-02\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBently Nevada 330103-00-12-10-02-05\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBently Nevada 330101-00-72-20-02-05\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBently Nevada 21000 Series Extension Cables\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":45518885650605,"sku":"21504-16-28-10-02","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/bently-nevada-21504-16-28-10-02-proximity-transducer-fqefzotkpcw.jpg?v=1766981057","url":"https:\/\/www.maxwellplc.com\/products\/21504-16-28-10-02-bently-nevada-21000-series-proximity-transducer","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}