{"product_id":"emerson-epro-pr9268-201-000-relative-shaft-vibration-sensor","title":"Emerson EPRO PR9268\/201-000 Relative Shaft Vibration Sensor","description":"\u003cp\u003eConfigured for shaft displacement monitoring in rotating machinery, the \u003cstrong\u003eEmerson EPRO PR9268\/201-000\u003c\/strong\u003e (\u003cstrong\u003ePR9268\/201-000\u003c\/strong\u003e) Relative Shaft Vibration Sensor provides direct electrical execution of eddy-current-based proximity detection.\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\u003ePR9268\/201-000\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\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-35 deg C to +120 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e-24 VDC (Nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement Range\u003c\/td\u003e\n\u003ctd\u003e2.0 mm (80 mils) peak-to-peak\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003e8 mV\/um (+\/- 5%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e0 to 3000 Hz\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\u003cp\u003eThe PR9268\/201-000 utilizes eddy-current induction to measure the relative position and vibration of a conductive shaft surface. Accurate rotor dynamics analysis relies on precise eddy-current probe scaling; the sensor must be calibrated to the specific magnetic properties of the target material, typically AISI 4140 steel. During commissioning, gap voltage validation against the nominal -10 VDC target is mandatory to confirm the probe is centered within its linear operating range. To maintain data integrity in multi-probe TSI configurations, ensure adequate spacing between adjacent sensors to provide effective cross-talk suppression and prevent beat-frequency interference in the signal processing chain.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What is the significance of the target material composition?\u003c\/p\u003e\n\u003cp\u003eA: Eddy-current sensor sensitivity is highly dependent on the electrical conductivity and magnetic permeability of the target. Deviations from standard ferrous steel (e.g., AISI 4140) will cause non-linear output and require re-calibration of the proximity system.\u003c\/p\u003e\n\u003cp\u003eQ: Can the 5-meter integral cable be extended?\u003c\/p\u003e\n\u003cp\u003eA: The integral cable is a matched component of the inductive system. Any alteration to the cable length or capacitance characteristics will directly affect the resonance frequency of the oscillator circuit, leading to measurement errors. Extension should only be performed using approved system-matched extension cables and connectors.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eEnsure the mounting bracket is rigid to prevent mechanical resonance, which can introduce false vibration readings.\u003c\/li\u003e\n\u003cli\u003eVerify the probe tip-to-target air gap using a feeler gauge or calibrated mechanical spacer during static alignment.\u003c\/li\u003e\n\u003cli\u003eObserve the -24 VDC nominal supply voltage requirements; ensure the power supply is isolated from process power to prevent ground-induced noise injection.\u003c\/li\u003e\n\u003cli\u003eRoute the integral cable through grounded metallic conduit, keeping it separated from high-voltage AC cabling to mitigate electromagnetic noise.\u003c\/li\u003e\n\u003cli\u003eGround the system at the machine chassis or a dedicated instrument ground point to ensure a stable potential reference for the low-level signal.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"EMERSON","offers":[{"title":"Default Title","offer_id":53036195971381,"sku":"PR9268\/201-000","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/PR9268301-100_c96ecabf-f972-4f22-8939-3ce8fda4d84e.png?v=1782378395","url":"https:\/\/www.5gplc.com\/products\/emerson-epro-pr9268-201-000-relative-shaft-vibration-sensor","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}