{"product_id":"epro-pr9376-010-021-proximity-sensor-transducer","title":"EPRO PR9376\/010-021 Proximity Sensor Transducer","description":"\u003cp\u003eConfigured for contactless shaft vibration and axial position measurement in turbomachinery protection systems, the \u003cstrong\u003eEPRO PR9376\/010-021\u003c\/strong\u003e (\u003cstrong\u003ePR9376\u003c\/strong\u003e Eddy Current Proximity Sensor) provides direct physical\/electrical execution. It transforms microscopic mechanical displacements of rotating metal shafts into proportional High-Frequency alternating electromagnetic impedance changes, delivering precision voltage signals representing static and dynamic shaft behaviors.\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\u003ePR9376\/010-021\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eEPRO \/ Emerson\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\u003e0.35 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eProbe length 50 mm, M10x1 thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-35 to +180 deg C (Sensor Tip)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePowered via external transmitter\/convertor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement Range\u003c\/td\u003e\n\u003ctd\u003e0 to 2.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLinear Range\u003c\/td\u003e\n\u003ctd\u003e0.25 to 2.25 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTarget Material\u003c\/td\u003e\n\u003ctd\u003eFerromagnetic steel (42CrMo4 standard calibration)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal\u003c\/td\u003e\n\u003ctd\u003eHigh-frequency AC signal to signal converter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEddy-Current Probe Scaling and Rotor Dynamics Calibration\u003c\/h3\u003e\n\u003cp\u003eThe PR9376 operates on the eddy-current principle, relying on probe scaling tailored to rotor dynamics monitoring. When supplied with a high-frequency excitation signal from an associated converter, the probe tip generates an alternating magnetic field. As a conductive target moves relative to the sensor face, induced eddy currents alter the coil impedance, dictating the gap voltage validation (-10 VDC targets standard baseline offset).\u003c\/p\u003e\n\u003cp\u003eEffective signal conditioning requires strict cross-talk suppression between adjacent probe tips mounted within the same bearing housing. A minimum center-to-center spacing of three probe tip diameters must be maintained to eliminate magnetic field interaction and ensure linear output scale factors across the full displacement range.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How is the physical gap voltage baseline verified during installation?\u003c\/p\u003e\n\u003cp\u003eA: Connect the probe to the signal converter and apply power. Adjust the mechanical insertion depth using the M10 threads until the DC output voltage reads -10.0 VDC (or the specific mid-scale target voltage defined by the converter model), which corresponds to the precise physical center of the linear measuring range.\u003c\/p\u003e\n\u003cp\u003eQ: Can the PR9376 cable be trimmed or modified in the field?\u003c\/p\u003e\n\u003cp\u003eA: No. The extension cable length directly forms a part of the tuned LC oscillator circuit. Cutting or splicing the coaxial cable alters the overall system capacitance and inductance, rendering the factory eddy-current probe scaling invalid and causing severe voltage offset errors.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eInspect the probe face and target shaft surface to ensure they are free of mechanical damage, oil residue, or metallic debris prior to insertion.\u003c\/li\u003e\n\u003cli\u003eThread the sensor into the mounting bracket using hand torque; engage at least 5 full NPT\/metric thread turns to guarantee structural integrity against vibration.\u003c\/li\u003e\n\u003cli\u003eUse a feeler gauge or monitor the converter DC output voltage to set the baseline zero gap before final locknut torquing.\u003c\/li\u003e\n\u003cli\u003eRoute the integral coaxial cable through grounded metal conduit. Ensure cable shield grounding is established at a single point on the monitor rack side to avoid ground loops.\u003c\/li\u003e\n\u003cli\u003eMaintain specified minimum clearance between the sensor tip and surrounding structural housing walls to prevent side-wall proximity effects.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Emerson Epro","offers":[{"title":"Default Title","offer_id":45474262909043,"sku":"PR9376\/010-021","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/PR9268301-100_1_2e7572eb-2e2c-481e-b014-31eacf5662eb.png?v=1789109757","url":"https:\/\/www.dcssupplier.com\/products\/epro-pr9376-010-021-proximity-sensor-transducer","provider":"DcsSupplier Limited","version":"1.0","type":"link"}