Schneider Foxboro Valve Positioner Series | SRD991 SRD960 SRD980 Intelligent Controllers

The Schneider Foxboro Valve Positioner Series is designed for precise control of pneumatic actuators in process industries. This series includes the SRD991, SRD960, and SRD980 digital valve controllers, all featuring advanced communication, diagnostic capabilities, and robust designs to ensure long-term reliability in harsh industrial environments.

• Digital communication: HART, Profibus PA, Foundation Fieldbus
• Integrated valve diagnostics and predictive maintenance functions
• High accuracy, repeatability, and fast response
• Available for linear and rotary actuators
• Robust enclosures for hazardous environments
• LCD display for easy setup and monitoring
• Single-acting and double-acting actuator compatibility

• Input Signal: 4–20 mA DC with digital overlay
• Communication Protocols: HART, Profibus PA, Foundation Fieldbus
• Supply Pressure: Up to 6 bar (90 psi)
• Output: Pneumatic actuator positioning
• Enclosure: IP65, explosion-proof and intrinsically safe options
• Display: Multi-language LCD
• Temperature Range: -40°C to +80°C
• Housing: Aluminum or stainless steel

• Intelligent microprocessor-based digital positioner
• Advanced diagnostics with predictive maintenance
• Suitable for critical applications in oil and gas and chemical industries

• Compact design for versatile applications
• Supports HART communication
• Cost-effective digital solution with reliable performance

• High-performance positioner with Foundation Fieldbus communication
• Enhanced monitoring and control features
• Designed for process optimization in demanding environments

• Oil and Gas exploration, refining, and pipelines
• Petrochemical and chemical processing plants
• Power generation (thermal, nuclear, renewable)
• Pulp and paper manufacturing
• Water and wastewater treatment
• General process automation industries

• Enhances process efficiency with accurate valve control
• Extends valve lifecycle through diagnostics and predictive maintenance
• Improves safety in critical process environments
• Compatible with leading DCS and PLC systems
• Reduces operational and maintenance costs

Q1: What communication options are available in the Foxboro positioner series?
A1: The series supports HART, Profibus PA, and Foundation Fieldbus communication.

Q2: Can the SRD991, SRD960, and SRD980 be used in hazardous environments?
A2: Yes, explosion-proof and intrinsically safe versions are available.

Q3: What is the difference between SRD991, SRD960, and SRD980?
A3:

• SRD991: High-end intelligent positioner with advanced diagnostics.
• SRD960: Compact, cost-effective option.
• SRD980: Enhanced version with extended communication and monitoring features.

Q4: Are Foxboro positioners suitable for both rotary and linear actuators?
A4: Yes, they are compatible with both actuator types.

Xiangjing (Shanghai) Mechanical and Electrical Tech Co., Ltd.
Phone: +86-15000725058
Website: www.shgongboshi.com
Address: Building 6, No.98, Fulian 1st Road, Baoshan District, Shanghai, China

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