9240si Loop Controller User Manual ~repack~ May 2026

The ECA Group 9240SI Loop Controller is a handheld device for testing aviation fire detection sensor loops, featuring continuity and insulation measurement modes. The tool is widely used for maintenance on aircraft from manufacturers including Boeing, Airbus, and Bombardier. Technical specifications and limited documentation can be found in the AvionTEq specification sheet. LOOP CONTROLLER / FIRE LOOP TESTING TOOL - AvionTEq

PID tuning

• Autotune: Put controller in Autotune mode while the process is at a representative steady state and load. Autotune will cycle the output and set PID constants automatically. Typical autotune procedure:

  : Designed to support Fenwall CFD sensor loops and is the only loop controller that meets the technical specifications of certain sensor loop manufacturers. Portability 9240si loop controller user manual

  1. Enter setup mode (press and hold SET + UP arrow, or SET for 5 seconds).
  2. Set input type (thermocouple type J/K, PT100, 4–20mA).
  3. Set range (e.g., 0–200°C or 0–100%).
  4. Set control action (reverse for heating, direct for cooling).
  5. Set PID values (or autotune).
  6. Set alarm limits.
  7. Set output type (relay, SSR, analog).

  The documentation for the 9240SI highlights several critical operational areas for loop control: The ECA Group 9240SI Loop Controller is a