{"product_id":"bently-nevada-89477-50-velomitor-piezo-velocity-sensor","title":"Bently Nevada 89477-50 Velomitor Piezo-velocity Sensor","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe Bently Nevada \u003cstrong\u003e89477-50\u003c\/strong\u003e is a specialized, rugged industrial \u003cstrong\u003eVelomitor piezo-velocity sensor\u003c\/strong\u003e engineered to measure total vibration velocity directly on the casings of rotating machinery. Unlike traditional moving-coil velocity transducers, this solid-state instrument utilizes internal piezoelectric crystals integrated with an onboarding charge amplifier circuit to process raw vibration accelerations and output an integrated, linear voltage velocity signal. The \u003cstrong\u003e89477-50\u003c\/strong\u003e provides continuous casing vibration data across high-speed machinery drops, routing the dynamic signal path directly to specialized machinery protection monitors, programmable logic controllers (PLCs), or distributed control systems (DCSs). By integrating the processing electronics inside a hermetically sealed enclosure, it minimizes moving mechanical parts wear and eliminates the orientation limitations typical of mechanical design configurations. It features a specific design revision optimized for extreme-temperature deployment, standard mounting thread patterns, and a standard top-connector interface block to stream clean predictive maintenance variables directly to host processing racks.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSolid-state piezoelectric integration converting raw acceleration to linear velocity outputs without moving parts.\u003c\/li\u003e\n\u003cli\u003eHigh-temperature specialized design variant tailored for high-thermal machine casings and harsh plant fields.\u003c\/li\u003e\n\u003cli\u003eHermetically sealed physical housing preventing moisture, oil ingress, and airborne particulate degradation.\u003c\/li\u003e\n\u003cli\u003eDirect compatibility with standard machine protection monitors and asset analysis instrumentation racks.\u003c\/li\u003e\n\u003cli\u003eEliminates physical mounting orientation constraints, allowing omnidirectional installation angles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eContinuous casing velocity monitoring and unbalanced mass tracking on industrial gas and steam turbines.\u003c\/li\u003e\n\u003cli\u003eStructural casing vibration safety loops on heavy-duty induction motors, large pumps, and process fans.\u003c\/li\u003e\n\u003cli\u003ePredictive maintenance diagnostics on high-vibration balance-of-plant rotating machinery skids.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eDetail\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eProduct Ordering Reference\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBase Model Designation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e89477 (High Temperature Velomitor Sensor)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFull Assembly Code\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e89477-50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFull Option Suffix Block\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-50 (Specialized High Temperature \/ Mounting Variant Code)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eDetail\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBently Nevada (Baker Hughes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Designation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e89477-50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensor Product Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePiezoelectric Velocity Transducer (Velomitor)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCore Circuit Profile\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInternal piezoelectric crystal element with integrated charge amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSignal Output Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLinear voltage proportional to absolute casing velocity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasurement Parameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCasing vibration velocity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstrument Physical Design\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSolid-state construction with no internal moving components\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnclosure Sealing Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHermetically sealed housing assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnector Interface Layout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTop-mounted physical connector receptacle block\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Envelope Selection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50 Option Specific Thread Profile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChassis Mechanical Envelope\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCorrosion-resistant stainless steel or equivalent alloy shell structure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHardware Installation Profile\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOmnidirectional operational deployment angle flexibility\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperational Weight Reference\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIndustrial standard field velocity transducer unit weight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eConnections\/Interfaces\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eInterface Component\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunction Assignment\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTop Connector Pins\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePinout paths for dynamic voltage signal output and circuit power input loop\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensor Base Baseplate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThreaded mechanical interface for rigid attachment to machine casing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRigid Casing Mounting:\u003c\/strong\u003e Mount the sensor base directly onto a flat, unpainted, cleanly tapped surface on the machine bearing housing. Torque the sensor casing down to standard engineering layout criteria to maximize dynamic signal transfer accuracy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Routing Paths:\u003c\/strong\u003e Route the interconnecting sensor lead wire through standard flexible conduit blocks. Keep the signal cables isolated from parallel high-voltage motor electrical conduits to minimize electromagnetic noise coupling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Strain Relief:\u003c\/strong\u003e Support the mating top connector shell properly to prevent physical strain loop forces from wearing out the sensor internal pin contacts during prolonged high-vibration exposure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Mitigation:\u003c\/strong\u003e Verify that the maximum operational surface temperature does not exceed the designated thermal rating boundary of this high-temperature configuration during sustained peak operation loops.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":52666545537387,"sku":"89477-50","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/bently-nevada-89477-50-velomitor-piezo-velocity-sensor-xhdjozvfmiq_7b8b461d-1d49-4e77-b2c7-53b1434cc3d3.jpg?v=1765440519","url":"https:\/\/www.plcprotech.com\/products\/bently-nevada-89477-50-velomitor-piezo-velocity-sensor","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}