{"product_id":"epro-a6312-08-speed-keyphasor-monitoring-module","title":"EPRO A6312\/08 Speed Keyphasor Monitoring Module","description":"\u003ch3\u003e\u003cstrong\u003eProduct Description\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Emerson EPRO\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eA6312\/08\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a dual-channel rotational speed and phase reference module designed for integration into MMS 6000 and AMS 6500 machinery protection systems. It is intended for precise acquisition and evaluation of shaft speed signals and keyphasor events in high-performance rotating equipment.\u003c\/p\u003e\n\u003cp\u003eThis module processes input signals from proximity probes or Hall-effect sensors, delivering accurate measurement of rotational speed, phase angle, zero-speed condition, and direction of rotation. With its microprocessor-based architecture, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eA6312\/08\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprovides stable real-time monitoring along with diagnostic outputs required for advanced vibration and order analysis.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\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\u003eChannel Configuration\u003c\/td\u003e\n\u003ctd\u003e2 independent input channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Compatibility\u003c\/td\u003e\n\u003ctd\u003eEddy current probes (PR642x series), Hall-effect sensors (e.g., PR9376)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e0 to ±27.3 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;100 kΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Isolation\u003c\/td\u003e\n\u003ctd\u003eGalvanically isolated from supply and system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Range\u003c\/td\u003e\n\u003ctd\u003e0 to 20,000 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Speed\u003c\/td\u003e\n\u003ctd\u003eUp to 65,535 RPM (depending on pulse configuration)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog Outputs\u003c\/td\u003e\n\u003ctd\u003e0\/4–20 mA or 0–10 V selectable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBuffered Outputs\u003c\/td\u003e\n\u003ctd\u003eFront SMB connectors and rear terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePulse Output\u003c\/td\u003e\n\u003ctd\u003eTTL signal up to 20 kHz per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunctional Capabilities\u003c\/td\u003e\n\u003ctd\u003eSpeed monitoring, phase reference, zero-speed detection, rotation direction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiagnostics\u003c\/td\u003e\n\u003ctd\u003eSensor condition, cable monitoring, internal hardware checks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\u003ctd\u003eRS-485 interface for system integration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0°C to +55°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Format\u003c\/td\u003e\n\u003ctd\u003e3U, 8HP plug-in module for 19-inch rack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e128 × 40 × 190 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.28 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompliance\u003c\/td\u003e\n\u003ctd\u003eDesigned in accordance with API 670 requirements\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Functional Characteristics\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eA6312\/08\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esupports simultaneous monitoring of two independent signals, enabling either dual-shaft measurement or redundant sensor configurations. Its high-frequency capability makes it suitable for fast-rotating machinery, while precise keyphasor detection supports synchronous vibration analysis and order tracking. Integrated buffering allows direct connection to diagnostic equipment without signal degradation.\u003c\/p\u003e\n\u003cp\u003eThe module also features built-in self-monitoring functions, reducing the risk of false alarms and improving overall system reliability. Its rack-based design allows replacement or maintenance without interrupting system operation.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eApplication Scenarios\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eTypical applications include steam and gas turbines, centrifugal compressors, hydro turbines, gear-driven systems, and high-speed industrial fans. It is used where accurate speed measurement and phase reference are essential for protection systems and condition monitoring.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can this module handle redundant sensor inputs?\u003c\/strong\u003e\u003cbr\u003eYes, the two channels can be configured independently or used for redundancy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What types of sensors are supported?\u003c\/strong\u003e\u003cbr\u003eBoth eddy current proximity probes and Hall-effect sensors are supported.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is it suitable for high-speed machinery?\u003c\/strong\u003e\u003cbr\u003eThe module supports frequencies up to 20 kHz, making it suitable for very high rotational speeds.\u003c\/p\u003e","brand":"Emerson","offers":[{"title":"Default Title","offer_id":43261411754074,"sku":"A6312\/08","price":178.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/A6312082.jpg?v=1776934516","url":"https:\/\/www.plcmasters.com\/ar\/products\/epro-a6312-08-speed-keyphasor-monitoring-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}