{"product_id":"27482-00-28-36-bently-nevada-radiation-resistant-probe-unit","title":"27482-00-28-36 Bently Nevada Radiation Resistant Probe Unit","description":"\u003ch3\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e27482-00-28-36\u003c\/strong\u003e is an engineered proximity transducer built by \u003cstrong\u003eBently Nevada\u003c\/strong\u003e specifically for severe nuclear and high-radiation containment areas. Part of the \u003cstrong\u003eRadiation Resistant Probes\u003c\/strong\u003e series, this ruggedized measurement unit withstands intense gamma and neutron flux fields that would cause standard commercial sensors to degrade. Featuring specialized mineral-insulated cabling and robust mechanical construction, it delivers continuous, high-accuracy relative vibration and shaft position monitoring inside nuclear reactor coolant pumps and containment turbine shafts.\u003c\/p\u003e\n\u003ch3\u003ePart Number \u0026amp; Configuration Breakdown (27482-AA-BB-CC)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Model (27482):\u003c\/strong\u003e Radiation Resistant Proximity Probe Platform\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOption A (-00):\u003c\/strong\u003e Unthreaded Length Option — 0 mm unthreaded barrel extension\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOption B (-28):\u003c\/strong\u003e Overall Case Length Option — 2.8 inches total thread and barrel length with 3\/8-24 UNF threading and 5\/16-inch wrench flats\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOption C (-36):\u003c\/strong\u003e Total Electrical Length Option — 36 inches (0.91 meters) integral radiation-resistant cable assembly complete with protective stainless steel armor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e \u003cstrong\u003eBently Nevada\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e \u003cstrong\u003eRadiation Resistant Probes\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e New \u0026amp; Original in Factory Packing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications Matrix\u003c\/h3\u003e\n\u003ch4\u003e1. Mechanical \u0026amp; Dimensional Construction\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Profile:\u003c\/strong\u003e 3\/8-24 UNF standard thread pitch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnthreaded Barrel Length:\u003c\/strong\u003e 0 mm (0.300 inch probe tip diameter profile)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWrench Flats:\u003c\/strong\u003e 5\/16 inch for precise torque application during installation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArmor Protection:\u003c\/strong\u003e Heavy-duty flexible stainless steel armor shielding the integral cable against physical crushing and radiation-induced sheath embrittlement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e2. Electrical \u0026amp; Metrology Performance\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Electrical Length:\u003c\/strong\u003e 36 inches (0.91 meters) matched coaxial configuration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Compatibility:\u003c\/strong\u003e Operates seamlessly with specialized radiation-resistant Proximitor sensors and standard monitoring architectures\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLinear Operating Range:\u003c\/strong\u003e Calibrated for precise eddy-current displacement feedback over standard gap intervals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e3. Environmental \u0026amp; Radiation Tolerance\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRadiation Thresholds:\u003c\/strong\u003e Engineered to maintain signal integrity and dielectric insulation properties under high cumulative gamma and neutron radiation doses typical of nuclear containment zones.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Endurance:\u003c\/strong\u003e Designed to withstand elevated ambient temperatures found near primary nuclear coolant loops.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation \u0026amp; Wiring Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTorque Control:\u003c\/strong\u003e Utilize the integrated 5\/16-inch wrench flats with a calibrated torque wrench to prevent over-tightening and protect the internal glass-to-metal hermetic seals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArmor Routing:\u003c\/strong\u003e Maintain smooth sweep radiuses along the stainless steel armored cable run to prevent localized stress concentration and protect the mineral-insulated core from micro-fractures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding Integrity:\u003c\/strong\u003e Ensure the metallic armor and shield drain wires are terminated correctly at the instrument rack to block electromagnetic interference (EMI) in high-voltage reactor environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDiagnostic Capabilities \u0026amp; Fault Monitoring\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Gap Voltage Verification:\u003c\/strong\u003e Track the steady-state output voltage via control room instrumentation to verify correct mechanical clearance between the probe tip and the vibrating shaft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation Resistance Testing:\u003c\/strong\u003e Perform periodic megohmmeter checks on the armored cable assembly to detect moisture ingress or radiation-induced breakdown of the internal dielectric barrier.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eGlobal PLC Spare HUB's Insight \u0026amp; Expert Guidance\u003c\/h3\u003e\n\u003cp\u003eGlobal PLC Spare HUB's Insight emphasizes that radiation-resistant installations leave zero margin for component mismatch. When deploying the \u003cstrong\u003e27482-00-28-36\u003c\/strong\u003e, verify that your entire loop—including extension cables and Proximitor units—is rated for nuclear-grade service, as standard commercial components will experience rapid insulation failure under continuous radiation exposure.\u003c\/p\u003e\n\u003ch3\u003eCompatible Equipment \u0026amp; Target Application Scenarios\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Equipment:\u003c\/strong\u003e Bently Nevada radiation-resistant Proximitor sensors, specialized extension cables, and 3500 Machinery Protection System nuclear-qualified input cards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTarget Application Scenarios:\u003c\/strong\u003e Pressurized water reactor (PWR) and boiling water reactor (BWR) primary coolant pumps, nuclear turbine generator bearings, and high-radiation radioactive waste handling machinery.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eLogistics, Fulfillment \u0026amp; Warranty Protection\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Carriers:\u003c\/strong\u003e Express global dispatch via \u003cstrong\u003eFedEx\u003c\/strong\u003e, \u003cstrong\u003eUPS\u003c\/strong\u003e, and \u003cstrong\u003eDHL\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFulfillment Speed:\u003c\/strong\u003e Guaranteed processing and dispatch within 24 to 48 hours.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty Terms:\u003c\/strong\u003e Fully backed by a 12-month factory replacement or repair warranty.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProfessional Frequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhy is special mineral-insulated cable and armor required for the 27482-00-28-36 probe?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStandard organic cable insulation degrades, hardens, and cracks when exposed to nuclear radiation; the mineral-insulated core and stainless steel armor ensure long-term structural and electrical survival inside containment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this radiation-resistant probe be used with standard commercial Proximitor sensors?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, radiation-resistant systems utilize specialized electrical matching and components; pairing this probe with standard commercial units will disrupt the calibrated scale factor and system linearity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat precautions should be taken when bending the armored cable during installation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAvoid sharp bends or kinks near the probe back-end; always adhere to a generous minimum bend radius to prevent internal conductor deformation inside the mineral insulation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the best selection guidelines when replacing nuclear-grade vibration sensors?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAlways match the exact part number string—including the unthreaded length (-00), case length (-28), and electrical length (-36)—to ensure proper physical fit and electrical tuning inside existing penetrations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat causes an erratic baseline signal on a radiation-resistant monitoring channel?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eErratic readings typically stem from moisture contamination inside unsealed junction boxes, loose terminal connections, or mechanical degradation of the armored shield due to excessive vibration rubbing.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":45013941452982,"sku":"27482-00-28-36","price":160.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/27482-00-28-36_4a1eebba-999e-4d8d-92c7-f8afa49de7c0.jpg?v=1787037183","url":"https:\/\/www.plcsparehub.com\/products\/27482-00-28-36-bently-nevada-radiation-resistant-probe-unit","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}