Foxboro SRI990 Smart Valve Positioner # Foxboro SRI990 Smart Valve Positioner Series: Revolutionizing Industrial Process Control Introduction The Foxboro SRI990 series represents a new generation of intelligent valve positioners designed to optimize control valve performance in demanding industrial environments. As part of Schneider Electric's Foxboro instrumentation portfolio, these microprocessor-based positioners combine cutting-edge technology with rugged reliability for precise process control across various industries including oil & gas, petrochemical, and power generation. ## Key Features of Foxboro SRI990 Positioner Dual Communication Protocol Support Native HART® 7 protocol compatibility Optional FOUNDATION™ Fieldbus (FF) communication Seamless integration with modern DCS/PLC systems Advanced Diagnostics Continuous valve performance monitoring Predictive maintenance capabilities Built-in self-diagnostic routines (IEC 61508 compliant) Enhanced Configuration Intuitive local interface with OLED display Auto-calibration function for fast commissioning Adaptive tuning algorithms for nonlinear valves Rugged Construction IP66/NEMA 4X environmental protection -40°C to +85°C operational temperature range ATEX/IECEx certification for hazardous areas [SRI990-CIMS7EAA-R](https://www.cwlyautomation.com/product/519.html "SRI990-CIMS7EAA-R") ### Technical Advantages Foxboro SRI990 Smart Valve Positioner Precision Control: 0.1% position feedback resolution Energy Efficiency: Low air consumption design (≤ 0.12 Nm³/h) Mounting Flexibility: Universal bracket system fits all rotary/linear actuators Cybersecurity: Embedded HART-IP security features ### Application Scenarios Foxboro SRI990 Smart Valve Positioner The SRI990 excels in critical control applications: Severe service control valves Steam turbine bypass systems LNG cryogenic control High-pressure letdown stations ### Technical Specifications of Foxboro SRI990 Smart Valve Positioner Parameter Specification Input Signal 4-20 mA, HART/FF Supply Pressure 1.4-10 bar Position Feedback 0-100% analog output SIL Rating SIL 2 (IEC 61508) Certification CE, ATEX, IECEx, NEPSI ### Conclusion of Foxboro SRI990 Smart Valve Positioner As process industries increasingly adopt IIoT and Industry 4.0 strategies, the Foxboro SRI990 smart positioner series provides a future-ready solution. Its combination of precision control, advanced diagnostics, and robust communication capabilities makes it an essential component for modern automated processes. By reducing maintenance downtime and improving control loop performance, the SRI900 series continues Foxboro's legacy of innovation in process automation.