{"product_id":"epro-pr9268-200-000-con021-high-precision-vibration-sensor","title":"EPRO PR9268\/200-000+CON021 High-precision vibration sensor","description":"\u003cp\u003eThe \u003cstrong\u003eEPRO PR9268\/200-000+CON021\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003ePR9268\/200-000\u003c\/strong\u003e Electrodynamic Velocity Sensor, operates as a dedicated hardware component for absolute seismic 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\/200-000+CON021\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eEPRO\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\u003eStandard sensor assembly (~0.4 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard cylindrical probe casing with integrated connector\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\u003eSelf-generating electrodynamic element (Passive)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003e30 mV\/mm\/s (at 50 Hz, 20 deg C, 100 k-ohm load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Range\u003c\/td\u003e\n\u003ctd\u003e10 Hz to 1000 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak-to-Peak Amplitude\u003c\/td\u003e\n\u003ctd\u003e2000 um +\/- 1500 um\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNatural Frequency (Horizontal)\u003c\/td\u003e\n\u003ctd\u003e12.0 Hz +\/- 2 Hz (at 20 deg C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNatural Frequency (Vertical)\u003c\/td\u003e\n\u003ctd\u003e12.3 Hz +\/- 2 Hz (at 20 deg C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Acceleration\u003c\/td\u003e\n\u003ctd\u003e10g continuous (98.1 m\/s2), 20g intermittent (196.2 m\/s2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDamping Factor\u003c\/td\u003e\n\u003ctd\u003e0.6 nominal at 20 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Coil Resistance\u003c\/td\u003e\n\u003ctd\u003e1723 ohm +\/- 2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Inductance\u003c\/td\u003e\n\u003ctd\u003eLess than or equal to 90 mH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIngress Protection\u003c\/td\u003e\n\u003ctd\u003eIP65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Material\u003c\/td\u003e\n\u003ctd\u003eStainless steel housing, PTFE-insulated cable assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHazardous Area Certification\u003c\/td\u003e\n\u003ctd\u003eEEx ib IIC T6\/T4 intrinsically safe approval\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eRotor Dynamics and Cross-Talk Suppression\u003c\/h3\u003e\n\u003cp\u003eThe internal moving-coil electrodynamic mass element generates a voltage output proportional to absolute vibration velocity without requiring external active power. Signal integrity across high-speed rotating machinery relies on cross-talk suppression between adjacent measurement axes. Phase accuracy across the 10 Hz to 1000 Hz frequency window prevents phase distortion when evaluating rotational speed harmonics and tracking rotor dynamic instabilities, such as unbalance and oil whirl phenomena.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the PR9268\/200-000+CON021 require external power supply excitation to measure vibration?\u003c\/p\u003e\n\u003cp\u003eA: No, the sensor uses a moving-coil electrodynamic assembly that operates as a passive voltage generator, supplying a proportional 30 mV\/mm\/s output directly to high-impedance processing monitors.\u003c\/p\u003e\n\u003cp\u003eQ: How is cross-talk or high-frequency interference handled on long cable runs in hazardous areas?\u003c\/p\u003e\n\u003cp\u003eA: The sensor features internal inductive shielding (inductance less than or equal to 90 mH) and utilizes PTFE-insulated shielded cabling connected through the CON021 mating assembly, maintaining signal integrity and intrinsic safety loop requirements (EEx ib IIC T6\/T4).\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure the sensor housing is solidly torqued to a rigid structural bearing housing to eliminate mechanical resonance distortion below 1000 Hz.\u003c\/li\u003e\n\u003cli\u003eMaintain a single-point cable shield ground at the monitoring rack end to prevent ground loops that interfere with the low-level millivolt output signal.\u003c\/li\u003e\n\u003cli\u003eVerify orientation relative to the shaft axis; observe natural frequency shifts between vertical (12.3 Hz) and horizontal (12.0 Hz) mounting configurations.\u003c\/li\u003e\n\u003cli\u003eRoute the PTFE cable through protective flexible conduit when installed near hot steam lines to prevent physical impact damage.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Emerson Epro","offers":[{"title":"Default Title","offer_id":45474332541043,"sku":"PR9268\/200-000+CON021","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/PR9268301-100_1_3c46bd2e-f3af-4a04-b25e-ef740dab21e9.png?v=1789357487","url":"https:\/\/www.dcssupplier.com\/products\/epro-pr9268-200-000-con021-high-precision-vibration-sensor","provider":"DcsSupplier Limited","version":"1.0","type":"link"}