{"product_id":"emerson-pr9268-201-100-proximity-sensors","title":"EMERSON PR9268\/201-100 Proximity Sensors","description":"\u003cp\u003eThe \u003cstrong\u003eEpro PR9268\/201-100\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003ePR9268\/201-100\u003c\/strong\u003e Electrodynamic Velocity Sensor, operates as a dedicated hardware component for precise vertical vibration velocity measurement within turbomachinery protection platforms. Operating across turbines, compressors, and pump sets, this sensor measures low-frequency absolute mechanical vibration for continuous condition 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\/201-100\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\u003e0.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard PR9268 Housing Form Factor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 deg C to +100 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePassive Electrodynamic Sensor (Self-Generating Output)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement Principle\u003c\/td\u003e\n\u003ctd\u003eElectrodynamic Low-Frequency Absolute Vibration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Range\u003c\/td\u003e\n\u003ctd\u003e4 Hz to 1000 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak Amplitude\u003c\/td\u003e\n\u003ctd\u003eUp to 1500 um or 2000 um\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNatural Frequency\u003c\/td\u003e\n\u003ctd\u003e4.5 Hz +\/- 0.5 Hz (Vertical Direction at 20 deg C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003eApprox. 28.5 mV\/mm\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous Acceleration\u003c\/td\u003e\n\u003ctd\u003e10g (98.1 m\/s2) continuously \/ 20g (196.2 m\/s2) intermittently\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Lateral Acceleration\u003c\/td\u003e\n\u003ctd\u003e2g (19.62 m\/s2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure \/ Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel Housing, PTFE Cable, IP55\/IP65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExplosion-Proof Rating\u003c\/td\u003e\n\u003ctd\u003eEXe Ib II B\/II C\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 \u0026amp; Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eEpro PR9268\/201-100\u003c\/strong\u003e generates a self-powered AC millivolt output proportional to dynamic casing vibration. To maintain signal integrity across connected monitoring systems, receiving signal conditioning hardware utilizes channel-to-channel isolation. This isolation suppresses common-mode electrical noise and eliminates ground loop corruption across 4-20 mA HART loop protocol networks during continuous operation.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What is the primary physical orientation design for the PR9268\/201-100 velocity sensor?\u003c\/p\u003e\n\u003cp\u003eA: The sensor is specifically designed for precise absolute vibration velocity measurements in the vertical direction.\u003c\/p\u003e\n\u003cp\u003eQ: Does the PR9268\/201-100 require external DC power for signal generation?\u003c\/p\u003e\n\u003cp\u003eA: No. As an electrodynamic low-frequency transducer, it functions as a self-generating passive sensor producing an AC voltage output.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eVerify that the mounting face on the bearing housing is clean, flat, and tapped perpendicular to the vertical axis.\u003c\/li\u003e\n\u003cli\u003eMount the \u003cstrong\u003ePR9268\/201-100\u003c\/strong\u003e sensor vertically, ensuring mechanical mounting stud engagement conforms to cabinet structural standards.\u003c\/li\u003e\n\u003cli\u003eInspect the stainless steel housing and PTFE integral cable for physical damage or sharp bends prior to final positioning.\u003c\/li\u003e\n\u003cli\u003eRoute the cable through grounded conduit, ensuring lateral acceleration exposure remains well under the 2g limit.\u003c\/li\u003e\n\u003cli\u003eTerminate overall cable shielding at a single point on the monitor panel ground bar to maintain noise suppression performance.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Emerson","offers":[{"title":"Default Title","offer_id":45353338437747,"sku":"PR9268\/201-100","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/screenshot_2026-08-13_11-50-00_1200x1200_b34a1e8a-eb38-49b4-8f98-59e28b477d71.jpg?v=1786599853","url":"https:\/\/www.dcssupplier.com\/products\/emerson-pr9268-201-100-proximity-sensors","provider":"DcsSupplier Limited","version":"1.0","type":"link"}