Foxboro SRD991‑CHFS7FAANY‑CSV14 – Industrial Product Description

Overview

The Foxboro SRD991‑CHFS7FAANY‑CSV14 is an intelligent digital valve positioner designed for precise control of industrial actuators. It converts control signals, either 4–20 mA or digital protocol, into accurate pneumatic output pressure. Moreover, its integrated LCD display enables local monitoring and configuration, ensuring efficient and reliable valve operation. This module is widely used in oil & gas, chemical, refining, power generation, pulp & paper, and water treatment industries.

Technical Specifications

• Model: SRD991‑CHFS7FAANY‑CSV14

• Type: Smart Digital Valve Positioner

• System Compatibility: Pneumatic actuators (linear or rotary)

• Signal Input: 4–20 mA DC with HART®, Profibus PA, or Fieldbus FF

• Display: LCD with menu navigation and diagnostics

• Communication Protocols: HART®, Profibus PA, Foundation Fieldbus

• Accuracy: ±0.1% of span (typical)

• Diagnostics: Valve wear, friction, travel deviation, performance monitoring

• Enclosure Protection: IP65; weatherproof and explosion-proof options

• Safety Certification: Intrinsically Safe Ex ia (ATEX/IECEx)

• Operating Temperature: –40 °C to +80 °C

• Humidity Range: 5% – 95% non‑condensing

• Power Supply: Loop-powered (24 VDC typical)

• Weight: 3.0 kg

• Country of Origin: USA / Europe

FAQ

Q1: Which communication protocols does this positioner support?
It supports HART®, Profibus PA, and Foundation Fieldbus for flexible integration.

Q2: Can the SRD991 operate in hazardous environments?
Yes, it is intrinsically safe (Ex ia) and offers explosion-proof and weatherproof protection.

Q3: What is the typical accuracy of this module?
The SRD991 provides ±0.1% of span for precise valve positioning.

Q4: Is local monitoring possible?
Yes, the integrated LCD allows configuration and diagnostics on-site.