Product Core Brief

• Model: E69F-TI2-JRS
• Brand: Foxboro (Schneider Electric / Invensys)
• Series: Signal Converter
• Core Function: Converts standard 4-20mA electrical signals into proportional 3-15psi pneumatic output.
• Product Type: Current-to-Pneumatic (I/P) Converter
• Key Specs: 4-20mA Input | 3-15psi Output | 19-23 psi Supply
• Condition: New Original / New Surplus

Foxboro E69F-TI2-JRS

Product Introduction

Foxboro serves as a critical I/P (Current-to-Pneumatic) signal converter in process control loops. This industrial automation unit receives standard 4-20mA DC control signals from a DCS or PLC and linearly converts them into proportional 3-15 psi pneumatic output signals.

This replacement module is specifically designed to drive pneumatic control valves, dampers, and other pneumatic actuators. Featuring a rigid feedback structure and low-mass components, it effectively minimizes the impact of vibration and shock commonly encountered in harsh industrial process applications.

Key Technical Specifications

Quality Control Process

Every replacement module undergoes strict electrical and pneumatic validation. We first verify the 4-20mA loop current using a calibrated Fluke multimeter to ensure the internal force motor operates correctly. Next, we perform a full-span pneumatic output test, confirming the 3-15 psi signal tracks linearly without exceeding the ±1.0% FS tolerance. We then inspect the internal nozzle-flapper assembly for wear and check the G1/4 pneumatic threads for cross-threading. All units ship in anti-static shielding.

Foxboro E69F-TI2-JRS

Replacement Pitfall Guide

❗ Verify the Supply Air Pressure. This converter requires a clean, dry instrument air supply strictly between 19 and 23 psi. Supply pressure below this range will prevent the module from reaching the full 15 psi output, causing valve stroke failures.

❗ Check the Suffix Configuration. The “JRS” suffix defines specific input/output ranges and action (direct/reverse). Swapping this with a different suffix (e.g., TI2-JS or BI2-RS) may alter the signal scaling or fail to match your DCS output parameters.

❗ Inspect for Moisture in Air Lines. The internal nozzle-flapper mechanism is highly sensitive to particulates and moisture. Water in the instrument air supply will cause erratic valve positioning and rapid internal corrosion. Always use an upstream air filter-regulator.

❗ Mind the Vibration Environment. While designed to resist vibration, excessive mechanical shock can still misalign the internal static balance coil. Ensure the module is securely mounted using the factory L-bracket to maintain zero-point stability.

Keep these in mind and you’ll cut 90% of rework time.

Compatibility Matrix & Benchmarks

• Signal Conversion: Full-range linear closed-loop conversion for continuous PID control.
• Response Time: Fast pneumatic actuation with built-in airflow amplification.