{"product_id":"bently-nevada-27482-08-12-18-72-radiation-resistant-proximity-probe","title":"Bently Nevada 27482-08-12-18-72 Radiation Resistant Proximity Probe","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eBently Nevada 27482-08-12-18-72\u003c\/strong\u003e\u003c\/span\u003e is a specialized \u003cstrong\u003eRadiation Resistant Proximity Probe\u003c\/strong\u003e built for high-radiation industrial environments. Engineers deploy this \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003e27482 Series\u003c\/strong\u003e\u003c\/span\u003e transducer in nuclear power plants and harsh turbine monitoring systems. It measures static and dynamic shaft positions without physical contact. The unit features a rugged 0.300-inch probe tip and stainless steel armor. This construction protects the internal coil from mechanical abrasion and intense ionizing radiation. Manufactured in the U.S.A., the probe maintains signal integrity where standard eddy current sensors fail.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003ePart Number Configuration Breakdown\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Series (\u003cspan style=\"color: #0056b3;\"\u003e27482\u003c\/span\u003e):\u003c\/strong\u003e 0.300-inch tip diameter, 3\/8-24 UNF thread, 5\/16-inch wrench flats, with flexible stainless steel armor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnthreaded Length Option (\u003cspan style=\"color: #0056b3;\"\u003e08\u003c\/span\u003e):\u003c\/strong\u003e 80 mm (3.15 inches) unthreaded section behind the probe tip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Case Length Option (\u003cspan style=\"color: #0056b3;\"\u003e12\u003c\/span\u003e):\u003c\/strong\u003e 1.2 inches total threaded case length.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Electrical Length Option (\u003cspan style=\"color: #0056b3;\"\u003e18\u003c\/span\u003e):\u003c\/strong\u003e 18 inches total electrical cable length (matched for \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003e36448\u003c\/strong\u003e\u003c\/span\u003e and \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003e27482\u003c\/strong\u003e\u003c\/span\u003e probes).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArmor \/ Extended Option (\u003cspan style=\"color: #0056b3;\"\u003e72\u003c\/span\u003e):\u003c\/strong\u003e 72 inches (1.82 meters) armored assembly specification.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\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\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eBently Nevada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003e27482-08-12-18-72\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eRadiation Resistant Eddy Current Proximity Probe\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in U.S.A.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTip Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.300 inch (7.62 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCase Thread \u0026amp; Flats\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3\/8-24 UNF thread with 5\/16-inch wrench flats\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\u003e2.0 mm (80 mils) standard eddy current operating window\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 10 kHz (DC to 600,000 cpm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncremental Scale Factor (Sensitivity)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7.87 V\/mm (200 mV\/mil) nominal with matching Proximitor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLinearity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWithin ±0.025 mm (±1.0 mil) of straight line\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInfinite (limited only by readout electronics)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-35°C to +177°C (-31°F to +350°F) continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnvironmental \u0026amp; Radiation Tolerance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh gamma and neutron radiation resistance; PEEK tip resists chemical erosion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEMI \/ RFI Immunity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTriaxial shielded coaxial cable with grounded stainless steel armor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation Guidelines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTarget Preparation:\u003c\/strong\u003e Machine the target shaft surface to AISI 4140 steel standards without chrome plating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical Mounting:\u003c\/strong\u003e Thread the \u003cstrong\u003e3\/8-24 UNF\u003c\/strong\u003e case into a rigid bracket using a 5\/16-inch open-end wrench.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGap Setting:\u003c\/strong\u003e Set the initial mechanical gap to 1.27 mm (50 mils), targeting approximately -9.0 VDC output.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Routing:\u003c\/strong\u003e Secure the \u003cstrong\u003e72-inch\u003c\/strong\u003e armored cable with P-clips to prevent flow-induced vibration fatigue.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSide Clearance:\u003c\/strong\u003e Maintain at least 1.5 tip diameters of clearance around the 0.300-inch tip to avoid side-wall interference.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eCommissioning \u0026amp; Maintenance Convenience\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Verification:\u003c\/strong\u003e Technicians verify probe health using a simple digital multimeter to check coil resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZero Calibration Drift:\u003c\/strong\u003e High-temperature radiation-tolerant polymers prevent tip swelling and zero-point drift over long outages.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModular Replacement:\u003c\/strong\u003e Miniature coaxial connectors allow rapid disconnect during scheduled nuclear refueling outages.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eSystem Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtension Cables:\u003c\/strong\u003e Pairs exclusively with \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eBently Nevada\u003c\/strong\u003e\u003c\/span\u003e radiation-resistant coaxial extension cables matching the \u003cstrong\u003e18-inch\u003c\/strong\u003e electrical length system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProximitor Sensors:\u003c\/strong\u003e Compatible with matching \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eBently Nevada 3300 \/ 7200 Series\u003c\/strong\u003e\u003c\/span\u003e radiation-rated Proximitor oscillators.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMonitoring Racks:\u003c\/strong\u003e Interfaces directly with \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eBently Nevada 3500\u003c\/strong\u003e\u003c\/span\u003e and \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003e3300\u003c\/strong\u003e\u003c\/span\u003e Machinery Protection Systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eCertifications \u0026amp; Compliance\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuality Management:\u003c\/strong\u003e Manufactured under ISO 9001 certified quality systems in the U.S.A.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNuclear Qualification:\u003c\/strong\u003e Engineered to meet stringent nuclear power plant radiation exposure standards (IEEE 323 guidelines).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustry Standards:\u003c\/strong\u003e Complies with API 670 mechanical vibration and axial position measurement requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePacking List\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 × \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eBently Nevada 27482-08-12-18-72\u003c\/strong\u003e\u003c\/span\u003e Radiation Resistant Proximity Probe\u003c\/li\u003e\n\u003cli\u003e1 × Protective Tip Cap and Connector Dust Boot\u003c\/li\u003e\n\u003cli\u003e1 × Factory Calibration and Quality Inspection Sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eSelection Guide\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify Thread Size:\u003c\/strong\u003e Confirm your bearing housing bracket accepts a \u003cstrong\u003e3\/8-24 UNF\u003c\/strong\u003e thread before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck Case Geometry:\u003c\/strong\u003e Ensure the \u003cstrong\u003e80 mm\u003c\/strong\u003e unthreaded length and \u003cstrong\u003e1.2-inch\u003c\/strong\u003e case length clear thick machine walls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatch System Electrical Length:\u003c\/strong\u003e Always match the \u003cstrong\u003e18-inch\u003c\/strong\u003e electrical length with the correct extension cable and Proximitor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEvaluate Radiation Dose:\u003c\/strong\u003e Select the \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003e27482 Series\u003c\/strong\u003e\u003c\/span\u003e over standard 3300 XL probes whenever cumulative gamma exposure exceeds 10\u003csup\u003e6\u003c\/sup\u003e rads.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions (FAQ)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: What differentiates the \u003cspan style=\"color: #0056b3;\"\u003e27482 Series\u003c\/span\u003e from standard 3300 XL proximity probes?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA1: Standard probes suffer polymer degradation under ionizing radiation. The \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003e27482 Series\u003c\/strong\u003e\u003c\/span\u003e uses specialized radiation-hardened plastics and insulation to survive nuclear containment zones.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2: Can I shorten or splice the 18-inch coaxial cable on the \u003cspan style=\"color: #0056b3;\"\u003e27482-08-12-18-72\u003c\/span\u003e?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA2: Never cut or splice the probe cable. Changing the physical cable length alters capacitance and ruins the tuned LC resonant circuit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3: How do field engineers test this probe during a plant outage?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA3: Disconnect the coaxial connector and measure resistance between the center pin and outer shield. A healthy \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003e27482\u003c\/strong\u003e\u003c\/span\u003e coil reads roughly 4 to 7 ohms.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ4: Why does the part number list both 18 inches and 72 inches?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA4: The \u003cstrong\u003e18\u003c\/strong\u003e designates the calibrated electrical cable length, while \u003cstrong\u003e72\u003c\/strong\u003e defines the extended 72-inch (1.82 m) armored assembly length.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/27482.png?v=1794538543\" alt=\"\"\u003e\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":68057519423670,"sku":"27482-08-12-18-72","price":163.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/27482-00-28-36_8577bbee-d584-4a69-a745-34bfc9bebce5.jpg?v=1794538532","url":"https:\/\/www.plcsparehub.com\/products\/bently-nevada-27482-08-12-18-72-radiation-resistant-proximity-probe","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}