{"product_id":"epro-pr9268-206-100-velocity-sensor","title":"EPRO pr9268 \/ 206-100 Velocity Sensor","description":"\u003cp\u003eThe \u003cstrong\u003eEmerson PR9268\/206-100\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003ePR9268\/206-100\u003c\/strong\u003e Electrodynamic Velocity Sensor, operates as a dedicated hardware component for absolute case vibration measurement within turbomachinery protection systems.\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\/206-100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eEmerson (EPRO Line)\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\u003e0.93 kg (without cable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eCylindrical probe body with heavy-duty casing\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 (-4 deg F to +212 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePassive self-generating electrodynamic coil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Type\u003c\/td\u003e\n\u003ctd\u003eElectrodynamic velocity sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNatural Frequency\u003c\/td\u003e\n\u003ctd\u003e4.5 Hz +\/- 0.75 Hz (at 20 deg C \/ 68 deg F)\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\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003e28.5 mV\/mm\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration Amplitude\u003c\/td\u003e\n\u003ctd\u003e+\/- 1500 um (+\/- 2000 um peak-to-peak)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIngress Protection\u003c\/td\u003e\n\u003ctd\u003eIP55\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal\u003c\/td\u003e\n\u003ctd\u003eProportional AC millivolt output voltage\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 and Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eThe passive moving-coil architecture self-generates a proportional millivolt AC output, which interfaces directly with machinery monitoring systems or remote signal transmitters. Channel-to-channel isolation within processing racks prevents ground loop noise interference when mapping low-frequency signals down to 4 Hz. The linear velocity measurement across the 4 Hz to 1000 Hz spectrum provides clean analog signals suitable for integration into HART-enabled loop transmitters, protecting turbomachinery against unbalance, misalignment, and structural resonance.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the PR9268\/206-100 sensor require active DC excitation voltage to operate?\u003c\/p\u003e\n\u003cp\u003eA: No, the sensor utilizes an electrodynamic moving-coil design that passively generates a millivolt signal proportional to vibration velocity via magnetic induction.\u003c\/p\u003e\n\u003cp\u003eQ: How does the 4.5 Hz natural frequency impact low-speed machine monitoring?\u003c\/p\u003e\n\u003cp\u003eA: The low natural frequency of 4.5 Hz allows the sensor to capture low-frequency structural vibrations down to 4 Hz, enabling early detection of slow-speed machine instabilities and sub-synchronous rotor faults.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMount the sensor housing firmly to a rigid structural bearing casing, ensuring full flush contact to maintain measurement accuracy up to 1000 Hz.\u003c\/li\u003e\n\u003cli\u003eMaintain a single-point cable shield ground at the monitoring module side to mitigate stray electrical noise and loops.\u003c\/li\u003e\n\u003cli\u003eProtect signal wiring from physical damage and extreme thermal exposure beyond the maximum rating of +100 deg C.\u003c\/li\u003e\n\u003cli\u003eVerify proper thread engagement and alignment relative to the machine axis according to standard industrial mounting procedures.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Emerson Epro","offers":[{"title":"Default Title","offer_id":45491482624115,"sku":"pr9268 \/ 206-100","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/screenshot_2026-08-24_14-33-54_2264bf91-1665-4838-9d35-b0158076b691.png?v=1789357456","url":"https:\/\/www.dcssupplier.com\/ar\/products\/epro-pr9268-206-100-velocity-sensor","provider":"DcsSupplier Limited","version":"1.0","type":"link"}