{"product_id":"epro-pr6423-000-131-eddy-current-proximity-sensor","title":"EPRO PR6423\/000-131  Eddy Current Proximity Sensor","description":"\u003cp\u003eThe \u003cstrong\u003eEmerson PR6423\/000-131\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003ePR6423\u003c\/strong\u003e Proximity Sensor, operates as a dedicated hardware component for non-contact shaft vibration and displacement measurement within turbomachinery monitoring systems.\u003c\/p\u003e\n\u003ch3\u003eHardware 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\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003ePR6423\/000-131\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eEmerson EPRO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eSensor head diameter: 8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePassive sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasuring Range\u003c\/td\u003e\n\u003ctd\u003e0-2 mm (extendable to ~3 mm with converter configuration)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003e8 V\/mm (~203.2 mV\/mil)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e0-10 kHz (-3 dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Air Gap\u003c\/td\u003e\n\u003ctd\u003e~1.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStatic Accuracy\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;= +-1.5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTarget Material\u003c\/td\u003e\n\u003ctd\u003eFerromagnetic steel (42CrMo4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Shaft Surface Speed\u003c\/td\u003e\n\u003ctd\u003e2,500 m\/s (~98,425 ips)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003eAPI 670 compliant; CON011, CON021, CON031, CON041 converters; AMS 3000 series modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eStainless steel housing, armored cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eProximity Sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEddy-Current Scaling and Gap Voltage Validation\u003c\/h3\u003e\n\u003cp\u003eThe PR6423 utilizes high-frequency eddy-current impedance sensing to evaluate target surface movement without mechanical contact. High-frequency electromagnetic excitation generates localized eddy currents within the 42CrMo4 ferromagnetic steel shaft, modulating the sensor coil inductance as shaft position shifts. The secondary converter processes this modulation into a linear signal defined by the nominal 8 V\/mm (~203.2 mV\/mil) sensitivity curve across a 0-10 kHz (-3 dB) bandwidth. Verification of static gap voltage at the ~1.0 mm nominal air gap ensures target positioning resides centered within the dynamic linear operational envelope, suppressing high-frequency cross-talk interference from surrounding metallic structures.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What converter interfaces can process the raw output of the PR6423\/000-131?\u003c\/p\u003e\n\u003cp\u003eA: The passive sensor pairs with EPRO signal converters including the CON011, CON021, CON031, and CON041 series, which condition the coil impedance variation into standard voltage outputs for AMS 3000 machinery protection hardware.\u003c\/p\u003e\n\u003cp\u003eQ: Is the PR6423\/000-131 suitable for high-speed turbine shaft monitoring?\u003c\/p\u003e\n\u003cp\u003eA: Yes. The sensor maintains dynamic frequency response up to 10 kHz (-3 dB) and supports target shaft surface tangential speeds up to 2,500 m\/s (~98,425 ips) without signal degradation.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensor Mounting and Target Alignment\u003c\/strong\u003e: Thread the stainless steel sensor body into the rigid mounting bracket, maintaining perpendicularity to the shaft centerline. Adjust probe depth to establish the ~1.0 mm nominal air gap relative to the 42CrMo4 steel target surface before torquing the jam nut.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArmored Cable Cable Routing\u003c\/strong\u003e: Route the flexible armored cable along grounded cable trays away from high-voltage conduit runs and variable frequency drive (VFD) output cables to minimize electromagnetic signal distortion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding and Shielding\u003c\/strong\u003e: Connect signal cable shields exclusively at the converter terminal block end to establish single-point ground loop prevention. Ensure the sensor shell bonds directly to machine ground through the physical mounting thread engagement.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Emerson Epro","offers":[{"title":"Default Title","offer_id":45464109842547,"sku":"PR6423\/000-131","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/screenshot_2026-09-09_13-34-11.png?v=1788932211","url":"https:\/\/www.dcssupplier.com\/products\/epro-pr6423-000-131-eddy-current-proximity-sensor","provider":"DcsSupplier Limited","version":"1.0","type":"link"}