{"product_id":"bently-nevada-3500-25-02-01-00-3500-series-enhanced-keyphasor-module","title":"Bently Nevada 3500\/25-02-01-00 3500 Series Enhanced Keyphasor Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eProcessing phase reference signals within the Bently Nevada 3500 Machinery Protection System is executed by the \u003cstrong\u003e3500\/25-02-01-00\u003c\/strong\u003e module. This half-height, four-channel \u003cstrong\u003eEnhanced Keyphasor Module\u003c\/strong\u003e provides once-per-turn tachometer and phase reference measurements to monitor shaft rotational speed and phase vector parameters. It accepts input signals from proximity probes and magnetic pickups, converting these raw pulses into digital Keyphasor signals used by other monitor modules across the 3500 backplane.\u003c\/p\u003e\n\n\u003cp\u003eThe system configuration of this specific model includes two half-height, 2-channel Keyphasor cards (totaling 4 channels) paired with an internal termination I\/O module. This setup handles phase measurement, speed calculation, and tracking filter coordination, enabling diagnostic software such as System 1 to correlate vibration and process data with shaft position.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eProvides multi-channel speed and phase measurements across four total channels.\u003c\/li\u003e\n  \u003cli\u003eAccepts input signals from magnetic pickups, proximity sensors, and optical transducers.\u003c\/li\u003e\n  \u003cli\u003eInternal termination I\/O module design eliminates the need for external terminal blocks.\u003c\/li\u003e\n  \u003cli\u003eSupports redundant Keyphasor configuration setups to maintain protection in critical applications.\u003c\/li\u003e\n  \u003cli\u003eConfigurable via the 3500 Rack Configuration Software for specific transducer thresholds and hysteresis.\u003c\/li\u003e\n  \u003cli\u003eTransmits phase reference signals digitally across the backplane to all adjacent monitor modules.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSteam, gas, and hydro turbine speed and phase monitoring.\u003c\/li\u003e\n  \u003cli\u003eIndustrial compressor and expander diagnostics.\u003c\/li\u003e\n  \u003cli\u003eHigh-speed gearbox and pump phase vector analysis.\u003c\/li\u003e\n  \u003cli\u003ePower generation and petrochemical rotating machinery protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003cth\u003eManufacturer\u003c\/th\u003e\n      \u003ctd\u003eBently Nevada\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003ePart Number\u003c\/th\u003e\n      \u003ctd\u003e3500\/25-02-01-00\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSeries\u003c\/th\u003e\n      \u003ctd\u003e3500 Machinery Protection System\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eModule Type\u003c\/th\u003e\n      \u003ctd\u003eEnhanced Keyphasor Module\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eChannel Count Option (-02)\u003c\/th\u003e\n      \u003ctd\u003eTwo half-height, 2-channel Keyphasor cards (4 channels total)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eI\/O Module Option (-01)\u003c\/th\u003e\n      \u003ctd\u003eInternal Terminations I\/O Module\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eAgency Approval Option (-00)\u003c\/th\u003e\n      \u003ctd\u003eNone required\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eInput Signal Range\u003c\/th\u003e\n      \u003ctd\u003e-0.8 V to -26.0 V (Proximitor sensor) or +1.0 V to +12.0 V (Magnetic pickup)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003ePower Consumption\u003c\/th\u003e\n      \u003ctd\u003e3.2 Watts (typical)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eOperating Temperature\u003c\/th\u003e\n      \u003ctd\u003e-30 degC to +65 degC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eStorage Temperature\u003c\/th\u003e\n      \u003ctd\u003e-40 degC to +85 degC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eHumidity\u003c\/th\u003e\n      \u003ctd\u003e95% non-condensing relative humidity\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth\u003eApproximate Shipping Weight\u003c\/th\u003e\n      \u003ctd\u003e2.0 kg\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eConnections and Interfaces\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eTerminal Name\u003c\/th\u003e\n      \u003cth\u003eFunction Pinout Description\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eKPH 1 \/ KPH 2 \/ KPH 3 \/ KPH 4\u003c\/td\u003e\n      \u003ctd\u003eSignal input from Keyphasor transducers\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCOM\u003c\/td\u003e\n      \u003ctd\u003eCommon return path for transducers\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e-24 Vdc\u003c\/td\u003e\n      \u003ctd\u003ePower supply output for active transducers\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSHLD\u003c\/td\u003e\n      \u003ctd\u003eShield terminal for field wiring termination\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSlot Placement:\u003c\/strong\u003e Install only in designated half-height slot positions within the 3500 rack system.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWiring:\u003c\/strong\u003e Use high-quality twisted-shielded cabling for all transducer connections to prevent electromagnetic noise from causing false speed readings.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrounding:\u003c\/strong\u003e Ensure the shield is grounded at the rack end only (the SHLD terminal) to avoid ground loops.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHot-Swapping:\u003c\/strong\u003e Observe proper electrostatic discharge (ESD) and safety procedures if inserting or removing the module while the rack is powered.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":52668289319275,"sku":"3500\/25-02-01-00","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/3500-25-02-01-00-ga4kpwy3xll_4e00a66c-f507-4c5d-839c-c1c014b63477.jpg?v=1765520345","url":"https:\/\/www.plcprotech.com\/products\/bently-nevada-3500-25-02-01-00-3500-series-enhanced-keyphasor-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}