FOXBORO Industrial Control Components

SRI986 Valve Control Integration

The SRI986 positioner provides precise valve control in process automation systems:

• Analog Control: Accepts 4-20mA signals from DCS controllers, PLCs, or other control systems

• Pneumatic Output: Converts electrical signals to proportional pneumatic pressure for valve actuation

• Feedback Options: Can be equipped with position feedback for closed-loop control applications

• Fail-Safe Operation: Spring return action provides fail-safe valve positioning on signal or air loss

• Wide Compatibility: Compatible with various valve types and actuator configurations

FBM217 Installation Best Practices

• Mounting: Install in standard I/A Series card cage with proper ventilation and cable management

• Wiring: Use shielded cables for field connections to minimize electromagnetic interference

• Grounding: Ensure proper system grounding to maintain isolation effectiveness

• Configuration: Set input filtering and fail-safe parameters appropriate for the application

• Testing: Verify all input channels and communication before system commissioning

• Documentation: Maintain accurate wiring diagrams and configuration records

SRI986 Installation Best Practices

• Mounting: Secure mounting to valve actuator with proper alignment and mechanical connections

• Pneumatic Connections: Use quality fittings and tubing, check for leaks after installation

• Signal Wiring: Route 4-20mA signal cables separately from power cables to prevent interference

• Calibration: Perform zero and span calibration according to valve travel requirements

• Air Supply: Ensure clean, dry instrument air supply within specified pressure range

• Environmental Protection: Verify IP65 sealing and cable gland integrity