Foxboro SRD991 Smart Positioner

SRD991 Intelligent Valve Controller

The Foxboro SRD991 is a rugged, highly intelligent valve positioner offering full integration with modern process control systems. Designed to deliver precise, reliable control of pneumatic valve actuators across a range of industrial processes it is ideal for high-demand, mission-critical industrial environments. 

Ideal for:

• Oil & Gas

• Petrochemical & Chemical Plants

• Power Generation

• Pharmaceutical Manufacturing

• Pulp & Paper

• Food & Beverage

Features:

• Microprocessor-based control
• Works with both linear and rotary actuators
• Auto-start
• Automatic actuator recognition
  • Type
  • Stroke length
• Self-adaptive control algorithm
• Tracks friction, stiction, dead band, and hysteresis
• Records valve movement
• Valve signature analysis for predictive maintenance
• Up to 60 months worth of storage
• Configurable test parameters
• Communications over HART, PROFIBUS-PA, FOUNDATION Fieldbus H1
• IrCom interface
• FDT/DTM Compatible
• 2.5 inch backlit LCD screen
• 3 or 4 local pushbuttons
• Configurable fail-safes
• ATEX, IECEx, FM, CSA, Inmetro, NEPSI, CU TR certified
• SIL 3 capable
• IP65 standard

Optional Features:

• External booster relays
• Gauge block with pressure gauges
• Analog position feedback modules
• Limit switches
• Remote mounting kits
• IP66/NEMA 4X standard

Document Downloads

• SRD991-Data Sheet
• SRD991-User Guide