{"product_id":"epro-pr6423-00r-111-eddy-current-proximity-sensors","title":"EPRO PR6423\/00R-111 Eddy Current Proximity Sensors","description":"\u003cp\u003eThe \u003cstrong\u003eEmerson PR6423\/00R-11\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003ePR6423\u003c\/strong\u003e Eddy Current Sensor, operates as a dedicated hardware component for non-contact radial and axial shaft displacement measurement within MMS 6000 and AMS 6500 platforms. It functions as an 8 mm inductive proximity probe that detects shaft position, vibration, eccentricity, and rotational speed without direct mechanical contact.\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\/00R-11\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\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Type\u003c\/td\u003e\n\u003ctd\u003e8 mm Eddy Current Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLinear Measurement Range\u003c\/td\u003e\n\u003ctd\u003e2 mm (80 mils)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInitial Air Gap\u003c\/td\u003e\n\u003ctd\u003e0.5 mm (20 mils)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncremental Scale Factor (ISF)\u003c\/td\u003e\n\u003ctd\u003e8 V\/mm (203.2 mV\/mil) +\/-5% at 0 to 45 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDeviation from Straight Line (DSL)\u003c\/td\u003e\n\u003ctd\u003e+\/-0.025 mm (+\/-1 mil) at 0 to 45 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Target Diameter\u003c\/td\u003e\n\u003ctd\u003e25 mm (0.79 in)\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\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-35 to +200 deg C (-31 to 392 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePassive sensor (powered via signal converter loop)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Rating\u003c\/td\u003e\n\u003ctd\u003eIP66 (IEC 60529)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e8 mm tip diameter, standard PR6423 housing footprint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApprox. 100 g (3.53 oz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e4-20 mA HART Loop Protocol and Channel-to-Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eWhen linked through matching signal converters into process DCS monitoring cards, raw inductive proximity modulations undergo continuous signal conditioning. Multi-channel receiver cards feature galvanically isolated signal channels to establish channel-to-channel isolation, preventing electrical noise transmission across adjacent probes on sleeve bearing monitoring arrays. The conditioned outputs maintain strict linearity over the full 2 mm measurement range, supplying clean static offset and dynamic vibration signals directly to plant DCS platforms.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What target shaft material is required to maintain the specified Incremental Scale Factor (ISF)?\u003c\/p\u003e\n\u003cp\u003eA: The 8 V\/mm ISF calibration is optimized for ferromagnetic steel (42CrMo4). Using non-magnetic metals or alternate steel alloys will alter eddy current decay rates, requiring custom converter scaling.\u003c\/p\u003e\n\u003cp\u003eQ: What is the maximum operating temperature limit for the PR6423\/00R-11 sensor head?\u003c\/p\u003e\n\u003cp\u003eA: The sensor head is rated for extreme thermal environments, operating continuously within a temperature range of -35 to +200 deg C (-31 to 392 deg F).\u003c\/p\u003e\n\u003cp\u003eQ: Can this sensor measure both static displacement and dynamic speed?\u003c\/p\u003e\n\u003cp\u003eA: Yes. The 8 mm non-contact probe captures dynamic vibration, axial thrust position, radial displacement, shaft eccentricity, and pulse frequency for speed sensing applications.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Thread Engagement\u003c\/strong\u003e: Thread the sensor body into the bearing mounting assembly using hand tools. Maintain a minimum of 5 full mechanical threads of engagement before securing locknuts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitial Gap Setting\u003c\/strong\u003e: Adjust physical probe insertion depth against the target shaft at rest to establish the recommended 0.5 mm (20 mils) initial air gap (yielding nominal converter DC gap bias voltage).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConduit and Cable Protection\u003c\/strong\u003e: Enclose signal leads in flexible metallic armor conduit to prevent mechanical abrasion and minimize high-voltage power line interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding Integrity\u003c\/strong\u003e: Ground the cable outer shield strictly at the signal converter housing chassis to prevent ground loops across the high-frequency measuring circuit.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Emerson Epro","offers":[{"title":"Default Title","offer_id":45393897619571,"sku":"PR6423\/00R-111","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/PR642300R-111_7a692b93-01fd-4690-8fc2-687fefbd5711.png?v=1787553876","url":"https:\/\/www.dcssupplier.com\/ar\/products\/epro-pr6423-00r-111-eddy-current-proximity-sensors","provider":"DcsSupplier Limited","version":"1.0","type":"link"}