{"product_id":"bently-nevada-3500-25-125800-01-keyphasor-i-o-module","title":"Bently Nevada 3500\/25 125800-01 Keyphasor I\/O Module","description":"\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3500\/25 (125800-01)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a dual-channel Keyphasor I\/O module designed for the Bently Nevada 3500 Monitoring System. This half-height module provides precise phase and timing reference signals for rotating machinery diagnostics.\u003c\/p\u003e\n\u003cp\u003eIt converts input signals from proximity probes or magnetic pickups into conditioned digital timing pulses. These pulses are used by the monitoring system to calculate rotational speed and synchronous vibration parameters such as 1X amplitude and phase angle—critical for orbit analysis, vector calculations, and multi-plane balancing.\u003c\/p\u003e\n\u003cp\u003eThe 125800-01 configuration features internal terminations that simplify field wiring and reduce installation complexity. It is fully compatible with Triple Modular Redundant (TMR) rack architectures, ensuring high availability in mission-critical machinery protection systems. Backward compatibility allows seamless integration into existing 3500 system installations.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\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\u003e3500\/25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e125800-01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eDual-channel Keyphasor I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Type\u003c\/td\u003e\n\u003ctd\u003eProximity probe or magnetic pickup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e12–32 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current\u003c\/td\u003e\n\u003ctd\u003e≤ 10 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal Range\u003c\/td\u003e\n\u003ctd\u003e0–10 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Drive Capacity\u003c\/td\u003e\n\u003ctd\u003e≤ 20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhase Accuracy\u003c\/td\u003e\n\u003ctd\u003e±0.5°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Bandwidth\u003c\/td\u003e\n\u003ctd\u003e0 Hz to 10 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (H × W × D)\u003c\/td\u003e\n\u003ctd\u003e24.2 cm × 11.2 cm × 2.5 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.38 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eApplication\u003c\/h2\u003e\n\u003cp\u003eThe 3500\/25 module is widely used in:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eSteam turbine protection systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCentrifugal compressor monitoring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLarge motor vibration diagnostics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePower generation and petrochemical rotating equipment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt provides the phase reference required for synchronous vibration measurement, orbit plots, and balancing procedures in high-value rotating assets.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical FAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the 125800-01 support TMR configurations?\u003c\/strong\u003e\u003cbr\u003eYes. The module is designed for operation in both simplex and Triple Modular Redundant (TMR) 3500 rack configurations, supporting high-availability applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat types of sensors are compatible?\u003c\/strong\u003e\u003cbr\u003eThe 3500\/25 accepts signals from proximity probe systems (e.g., Proximitor®) and magnetic pickups that generate once-per-turn timing pulses.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":48746751459580,"sku":"3500\/25 125800-01","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/350040_125680-01.jpg?v=1772438245","url":"https:\/\/www.electronicplc.com\/products\/bently-nevada-3500-25-125800-01-keyphasor-i-o-module","provider":"Electronic PLC","version":"1.0","type":"link"}