{"product_id":"pr9268-300-000-emerson-epro-electrodynamic-velocity-sensor","title":"PR9268\/300-000 | Emerson EPRO | Electrodynamic Velocity Sensor","description":"\u003cp\u003eConfigured for seismic vibration acquisition in rotating machinery, the \u003cstrong\u003eEmerson EPRO PR9268\/300-000\u003c\/strong\u003e (\u003cstrong\u003ePR9268\/300-000\u003c\/strong\u003e) Electrodynamic Velocity Sensor provides direct electrical execution of velocity-based vibration monitoring.\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\/300-000\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\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e4.1 cm x 15.9 cm x 10.8 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 deg C to +80 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003e28.5 mV\/mm\/s (+\/- 5%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Range\u003c\/td\u003e\n\u003ctd\u003e4 to 1000 Hz (-3 dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control and DCS Connectivity\u003c\/h3\u003e\n\u003cp\u003eThe PR9268\/300-000 integrates with standard DCS and PLC platforms via a 4-20 mA DC output signal, representing the measured vibration velocity. To maintain signal integrity, ensure that channel-to-channel isolation is implemented within the control system input card to prevent ground loop currents from corrupting the low-level data. The sensor output is conditioned internally to provide a standardized current loop, requiring a stable 24 VDC excitation voltage. Field wiring should utilize shielded twisted-pair cables, with the shield terminated at the control cabinet ground bar to mitigate common-mode noise.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the sensor be mounted in any orientation?\u003c\/p\u003e\n\u003cp\u003eA: Electrodynamic sensors utilize an internal mass-spring system sensitive to gravitational bias. Ensure the mounting orientation aligns with the manufacturer's specified axis for this model to prevent offset errors in the output signal and mechanical wear of the internal suspension.\u003c\/p\u003e\n\u003cp\u003eQ: Is the 4-20 mA output signal loop-powered?\u003c\/p\u003e\n\u003cp\u003eA: This model requires a dedicated 24 VDC power supply. Ensure the voltage at the sensor terminals remains within the specified operating range, accounting for voltage drop across long cable runs.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eMount the sensor body securely to a rigid, flat surface on the machine casing to ensure high-frequency mechanical coupling.\u003c\/li\u003e\n\u003cli\u003eUse the provided threaded connection to torque the sensor housing to the machinery; verify the connection is tight to prevent structural resonance.\u003c\/li\u003e\n\u003cli\u003eTerminate the 4-20 mA output to the analog input card; observe correct polarity to avoid circuit damage or signal inversion.\u003c\/li\u003e\n\u003cli\u003eRoute signal cabling through grounded metallic conduit, keeping it physically separated from high-current AC motor leads or power feeds.\u003c\/li\u003e\n\u003cli\u003ePerform a commissioning test by observing the loop current at rest and during machine operation to verify the correlation between seismic velocity and the 4-20 mA signal output.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"EMERSON","offers":[{"title":"Default Title","offer_id":53036152422709,"sku":"PR9268\/300-000","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/PR9268301-100_99ecd48e-ca5d-4fed-a9ea-3705e2429616.png?v=1782377563","url":"https:\/\/www.5gplc.com\/products\/pr9268-300-000-emerson-epro-electrodynamic-velocity-sensor","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}