{"product_id":"bently-nevada-3500-25-125792-01-enhanced-keyphasor-module","title":"Bently Nevada 3500\/25 125792-01 Enhanced Keyphasor Module","description":"\u003ch3 class=\"\"\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cspan class=\"\"\u003eThe Bently Nevada 125792-01 is a high-precision Enhanced Keyphasor Module engineered for the 3500 Series machinery protection system.\u003c\/span\u003e\u003cspan class=\"\"\u003e This half-height,\u003c\/span\u003e\u003cspan class=\"\"\u003e dual-channel component is fundamental for acquiring phase reference signals and rotative speed measurements from a wide variety of transducers.\u003c\/span\u003e\u003cspan class=\"\"\u003e By processing pulses from proximity probes or magnetic pickups,\u003c\/span\u003e\u003cspan class=\"\"\u003e the 125792-01 provides the critical timing information required to calculate vector parameters,\u003c\/span\u003e\u003cspan class=\"\"\u003e such as 1X vibration amplitude and phase lag.\u003c\/span\u003e\u003cspan class=\"\"\u003e It acts as the system's temporal anchor,\u003c\/span\u003e\u003cspan class=\"\"\u003e ensuring that all vibration data across the rack is accurately synchronized with the shaft's rotational position,\u003c\/span\u003e\u003cspan class=\"\"\u003e which is essential for advanced machinery diagnostics and multi-plane balancing.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"\"\u003eEngineering Parameters and Hardware Metrics\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eSignal Processing\u003c\/strong\u003e\u003cspan class=\"\"\u003e Supports two independent Keyphasor channels\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eInput Source Compatibility\u003c\/strong\u003e\u003cspan class=\"\"\u003e Proximitor sensors,\u003c\/span\u003e\u003cspan class=\"\"\u003e Magnetic Pickups,\u003c\/span\u003e\u003cspan class=\"\"\u003e or Optical transducers\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eFrequency Signal Accuracy\u003c\/strong\u003e\u003cspan class=\"\"\u003e High-fidelity performance at ±0.\u003c\/span\u003e\u003cspan class=\"\"\u003e05%\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eSpeed Resolution\u003c\/strong\u003e\u003cspan class=\"\"\u003e Precise 0.\u003c\/span\u003e\u003cspan class=\"\"\u003e1 RPM increments\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eSampling Frequency\u003c\/strong\u003e\u003cspan class=\"\"\u003e 1000 Hz high-speed data acquisition\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eElectrical Demand\u003c\/strong\u003e\u003cspan class=\"\"\u003e 3.\u003c\/span\u003e\u003cspan class=\"\"\u003e2 Watts (Typical)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eAnalog Transmission\u003c\/strong\u003e\u003cspan class=\"\"\u003e 4-20mA proportional output signals\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eEnvironmental Tolerance\u003c\/strong\u003e\u003cspan class=\"\"\u003e -40°C to +85°C Operating Temperature\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eAtmospheric Resistance\u003c\/strong\u003e\u003cspan class=\"\"\u003e 0 to 100% Relative Humidity (non-condensing)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eUnit Mass\u003c\/strong\u003e\u003cspan class=\"\"\u003e 0.\u003c\/span\u003e\u003cspan class=\"\"\u003e34 kg (0.\u003c\/span\u003e\u003cspan class=\"\"\u003e76 lbs)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003ePhysical Dimensions\u003c\/strong\u003e\u003cspan class=\"\"\u003e 119.\u003c\/span\u003e\u003cspan class=\"\"\u003e9 mm x 24.\u003c\/span\u003e\u003cspan class=\"\"\u003e4 mm x 256.\u003c\/span\u003e\u003cspan class=\"\"\u003e5 mm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eManufacturing Origin\u003c\/strong\u003e\u003cspan class=\"\"\u003e USA\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"\"\u003eSite Deployment and Industrial Utility\u003c\/h3\u003e\n\u003cp\u003e\u003cspan class=\"\"\u003eThe 125792-01 is a staple in power generation and heavy industrial facilities where synchronous vibration analysis of large turbines and compressors is required.\u003c\/span\u003e\u003cspan class=\"\"\u003e In these environments,\u003c\/span\u003e\u003cspan class=\"\"\u003e knowing the exact position of the shaft at any given microsecond is the difference between a successful startup and a catastrophic trip.\u003c\/span\u003e\u003cspan class=\"\"\u003e The module provides \"once-per-turn\" timing pulses that are utilized by other 3500 monitoring modules to filter vibration signals and determine specific machine health characteristics like unbalance or misalignment.\u003c\/span\u003e\u003cspan class=\"\"\u003e Its ruggedized design allows for deployment in extreme temperatures,\u003c\/span\u003e\u003cspan class=\"\"\u003e making it a reliable choice for remote turbine enclosures or offshore platforms.\u003c\/span\u003e\u003cspan class=\"\"\u003e Whether used for simple speed monitoring or as part of a complex condition monitoring network,\u003c\/span\u003e\u003cspan class=\"\"\u003e the Enhanced Keyphasor Module ensures the integrity of the safety loop by providing millisecond-perfect timing data.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"\"\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eQ: What is the primary function of the 125792-01 in a 3500 rack?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"\"\u003eA:\u003c\/span\u003e\u003cspan class=\"\"\u003e It provides a phase reference signal (the Keyphasor) that allows the system to relate vibration signals to a specific point on the rotating shaft,\u003c\/span\u003e\u003cspan class=\"\"\u003e which is necessary for calculating phase and filtered 1X vibration.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eQ: Can this module accept inputs from magnetic pickups and proximity probes simultaneously?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"\"\u003eA:\u003c\/span\u003e\u003cspan class=\"\"\u003e Yes,\u003c\/span\u003e\u003cspan class=\"\"\u003e the 125792-01 is designed to receive and process signals from various transducer types including proximity probes and magnetic pickups to determine shaft speed and orientation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eQ: Is this module considered a full-size or half-size module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"\"\u003eA:\u003c\/span\u003e\u003cspan class=\"\"\u003e This is a half-height module,\u003c\/span\u003e\u003cspan class=\"\"\u003e which means it occupies one-half of a standard slot in the 3500 chassis,\u003c\/span\u003e\u003cspan class=\"\"\u003e typically allowing for two such modules to be stacked in a single rack slot.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eQ: Does the 125792-01 provide a 4-20mA output for speed?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes, the module can be configured to provide a 4-20mA analog signal representing the measured rotative speed for integration with a DCS or PLC.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What happens if the Keyphasor signal is lost?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: If the signal is lost, modules relying on the phase reference for filtered measurements (like 1X amplitude) will enter an error state or provide non-filtered data, though the rack's primary safety protection often remains active.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":45832842215597,"sku":"125792-01","price":888.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/bentlynevada_125792-01_1.jpg?v=1773901014","url":"https:\/\/www.maxwellplc.com\/products\/bently-nevada-3500-25-125792-01-enhanced-keyphasor-module","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}