Foxboro SRD991-CHFS7FAANY-CSV14 Intelligent Positioner

Product Overview

The Foxboro SRD991‑CHFS7FAANY‑CSV14 is an advanced Intelligent Valve Positioner engineered for precise control of pneumatic actuators. It ensures reliable valve positioning across diverse industrial environments, including hazardous locations. Moreover, its multi-protocol communication capabilities allow seamless integration with modern distributed control systems (DCS), simplifying operations and diagnostics for process engineers. In addition, its robust construction guarantees consistent performance under harsh conditions, making it an ideal choice for critical industrial applications.

Key Features

• Digital signal processing enables highly accurate valve positioning and control.

• Supports HART®, PROFIBUS‑PA, and FOUNDATION Fieldbus H1 communication protocols.

• LCD interface provides intuitive local configuration and real-time monitoring.

• Intrinsically safe (Ex ia) design ensures safe operation in hazardous environments.

• IP65-rated enclosure protects against dust, water, and industrial contaminants.

• Loop-powered operation from 4–20 mA signals reduces wiring complexity.

• Compatible with a wide range of pneumatic actuators and industrial valves.

Technical Specifications

• Manufacturer: Foxboro

• Model: SRD991‑CHFS7FAANY‑CSV14

• Type: Intelligent Digital Valve Positioner

• Input Signal: 4–20 mA analog or digital

• Output Signal: Pneumatic pressure to actuator

• Communication Protocols: HART®, PROFIBUS‑PA, FOUNDATION Fieldbus H1

• Display: LCD with local configuration and monitoring

• Safety Certification: Intrinsically Safe (Ex ia)

• Power Supply: Loop-powered (from 4–20 mA signal)

• Operating Temperature: -40°C to +85°C

• Enclosure Protection: IP65

Typical Applications

The SRD991 positioner is widely deployed in oil & gas, chemical processing, power generation, and water treatment industries. It enables precise valve automation in critical process loops, contributing to operational safety and efficiency. Moreover, it simplifies system integration in both new installations and existing DCS environments. For instance, engineers can use it to enhance control accuracy in reactors, pumps, or pipeline systems.

Support & Maintenance

Foxboro offers comprehensive technical support and service programs. Regular calibration and diagnostic checks ensure optimal performance. In addition, its modular design allows easy replacement or upgrade of communication modules without disrupting plant operations.

FAQ

Q: Which communication protocols does this valve positioner support?
A: It supports HART®, PROFIBUS‑PA, and FOUNDATION Fieldbus H1 for versatile integration.

Q: Can it operate in hazardous areas?
A: Yes, the device is intrinsically safe (Ex ia) and suitable for hazardous environments.

Q: What is the operating temperature range?
A: The positioner functions reliably from -40°C to +85°C.

Q: How is it powered?
A: It is loop-powered directly from a 4–20 mA input signal.

Q: Does it provide local monitoring?
A: Yes, the built-in LCD allows real-time monitoring and configuration.