{"product_id":"emerson-epro-pr6423-000-031-cn-eddy-current-sensor","title":"Emerson EPRO PR6423\/000-031-CN Eddy Current Sensor","description":"\u003cp\u003eThe \u003cstrong\u003eEmerson EPRO PR6423\/000-031-CN\u003c\/strong\u003e operates as a dedicated hardware component for non-contact shaft displacement, radial vibration, and speed monitoring within turbomachinery protection and TSI networks.\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\/000-031-CN\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\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApprox. 0.10 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e8 mm sensor tip diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-35 deg C to +200 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eSystem dependent (via converter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLinear Range\u003c\/td\u003e\n\u003ctd\u003e2 mm (80 mils)\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\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eMechanical Monitoring and TSI Characteristics\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEddy-current probe scaling:\u003c\/strong\u003e The transducer system is factory-calibrated for 8 V\/mm sensitivity. This high-gain output is designed for integration into API 670-compliant monitoring systems, requiring precise shaft-to-target material calibration (typically using 42CrMo4 steel).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGap voltage validation (-10 VDC targets):\u003c\/strong\u003e During commissioning, the static gap voltage must be adjusted to the linear center of the sensor's range (typically at the 0.5 mm initial air gap). Verification via high-impedance multimeter is mandatory to ensure the dynamic vibration signal (AC component) does not clip against the power supply rails.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotor dynamics:\u003c\/strong\u003e The system supports a broad frequency response to capture both steady-state radial position and high-frequency dynamic vibrations, such as blade pass frequencies or sub-synchronous instability in rotors with a minimum diameter of 25 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross-talk suppression:\u003c\/strong\u003e In installations with multiple probes (e.g., X-Y configuration for orbital analysis), a minimum radial separation of 3 tip diameters is required to avoid mutual electromagnetic interference between oscillating excitation fields.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Is this sensor compatible with hot-swapping under power?\u003c\/p\u003e\n\u003cp\u003eA: No. Disconnect the supply to the signal conditioner before removing or replacing the probe to prevent electrical transients from damaging the oscillator circuitry.\u003c\/p\u003e\n\u003cp\u003eQ: How does target material affect the 8 V\/mm sensitivity?\u003c\/p\u003e\n\u003cp\u003eA: The sensitivity is calibrated specifically for ferromagnetic steel (AISI 4140). Using materials with different magnetic permeability or electrical conductivity will result in a non-linear output and shifted scale factor, necessitating system recalibration.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Ensure the sensor is installed using a rigid, vibration-resistant bracket. The probe tip must be set at the 0.5 mm initial air gap position; account for thermal expansion of the shaft and casing to ensure the tip remains within the linear 2 mm range during operational steady-state.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShielding:\u003c\/strong\u003e The probe coaxial cable must be routed through grounded metallic conduit separate from motor control or VFD power cabling. Maintain continuous shield integrity from the probe to the signal conditioner input terminal to eliminate common-mode noise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding:\u003c\/strong\u003e The signal conditioner chassis must be bonded to the instrument common ground. Verify that no ground loops exist between the probe tip (via the shaft and bearing housing) and the monitor system chassis.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Emerson Epro","offers":[{"title":"Default Title","offer_id":45164957499507,"sku":"PR6423\/000-031-CN","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/screenshot_2026-06-05_13-40-35_432904c8-cb88-4fd3-970d-673b4007e354.png?v=1783332510","url":"https:\/\/www.dcssupplier.com\/products\/emerson-epro-pr6423-000-031-cn-eddy-current-sensor","provider":"DcsSupplier Limited","version":"1.0","type":"link"}