{"product_id":"epro-pr9268-017-100-electrodynamic-velocity-sensor","title":"EPRO pr9268 \/ 017-100 Electrodynamic Velocity Sensor","description":"\u003cp\u003eThe \u003cstrong\u003eEmerson PR9268\/017-100\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003ePR9268\u003c\/strong\u003e Electrodynamic Velocity Sensor, operates as a dedicated hardware component for absolute bearing housing vibration measurement within MMS6000 machinery protection systems. The seismic sensor converts mechanical structural vibration velocity directly into an proportional electrical AC millivolt signal without requiring external power amplification.\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\/017-100\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\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\u003e0.35 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e64 mm x 30 mm x 30 mm\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 (Self-generating)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003e17.5 mV\/mm\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Range\u003c\/td\u003e\n\u003ctd\u003e14 to 1000 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNatural Frequency\u003c\/td\u003e\n\u003ctd\u003e14 Hz +\/-7% at 20 deg C (68 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransverse Sensitivity\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 0.1 at 80 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration Amplitude\u003c\/td\u003e\n\u003ctd\u003e500 um peak-peak\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmplitude Linearity\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Acceleration\u003c\/td\u003e\n\u003ctd\u003e10g (98.1 m\/s2) peak-peak continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Transverse Acceleration\u003c\/td\u003e\n\u003ctd\u003e20g (196.2 m\/s2) peak-peak intermittent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDamping Factor\u003c\/td\u003e\n\u003ctd\u003e~0.6% at 20 deg C (68 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResistance\u003c\/td\u003e\n\u003ctd\u003e1723 ohm +\/-2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInductance\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;= 90 mH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActive Capacity\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 1.2 nF\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 DCS Connectivity\u003c\/h3\u003e\n\u003cp\u003eThe PR9268\/017-100 utilizes a moving-coil electrodynamic assembly to generate self-induced voltage outputs proportional to dynamic velocity. Signal conditioning cards receive the high-impedance coil signal across a 1723 ohm internal resistance path, converting raw AC millivolt data into 4-20 mA HART loop protocol outputs for continuous process control integration. Channel-to-channel isolation on the receiving monitor prevents high-voltage spikes and ground loops from corrupting critical vibration telemetry. Integrated signal routing delivers calibrated dynamic velocity profiles directly to Emerson DeltaV and Ovation DCS architectures for automated trip execution and predictive asset monitoring.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the PR9268\/017-100 velocity sensor require an external power supply to operate?\u003c\/p\u003e\n\u003cp\u003eA: No, the sensor uses an internal electrodynamic coil and permanent magnet assembly that self-generates an AC millivolt voltage proportional to vibration velocity.\u003c\/p\u003e\n\u003cp\u003eQ: How does transverse acceleration affect the measurement accuracy of the sensor?\u003c\/p\u003e\n\u003cp\u003eA: Transverse sensitivity is rated at \u0026lt; 0.1 at 80 Hz, minimizing measurement cross-talk from orthogonal axis vibration during continuous operation.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eMount the velocity sensor rigidly on the machine bearing housing using a threaded mounting stud to ensure complete mechanical energy transfer.\u003c\/li\u003e\n\u003cli\u003eRoute twisted-pair shielded signal cabling through dedicated metallic conduits separated from high-voltage AC power lines.\u003c\/li\u003e\n\u003cli\u003eConnect signal cable shielding strictly to the cabinet instrument ground point (single-point ground) to prevent ground loop noise injection.\u003c\/li\u003e\n\u003cli\u003eVerify that physical shaft or casing vibration does not exceed the maximum continuous acceleration limit of 10g (98.1 m\/s2) peak-peak.\u003c\/li\u003e\n\u003cli\u003eEnsure threaded mounting connections are torqued to specified field ratings to avoid resonance shifts or mechanical loosening during high-vibration events.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Emerson Epro","offers":[{"title":"Default Title","offer_id":45499122745459,"sku":"pr9268 \/ 017-100","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/pr9268_Cocoai_52ac275d-3883-485a-890a-7a55ad7a3f71.jpg?v=1789453666","url":"https:\/\/www.dcssupplier.com\/ar\/products\/epro-pr9268-017-100-electrodynamic-velocity-sensor","provider":"DcsSupplier Limited","version":"1.0","type":"link"}