Fourtech Temperature Controller Manual 【iPhone】

Press the to confirm and save the new target value. The display will stop flashing. 4. Advanced Programming and Parameter Menus

Mastering Your FourTech Temperature Controller: A Complete User Manual & Setup Guide

The sensor signal is broken or disconnected. Check the wiring on terminals 7, 8, and 9. If the wiring is solid, the thermocouple or Pt100 probe is likely burnt out and requires replacement.

Calibration should only be performed by qualified personnel using certified equipment. fourtech temperature controller manual

Always disconnect power before wiring.

(Alarm): Set absolute high or low alarm values to prevent over-temperature. PID temp control Instructions SOLVED

Verify the Hy (Hysteresis) or AL settings to ensure the alarm threshold isn't set too close to your working temperature. Press the to confirm and save the new target value

To enter the advanced configuration menu, press and hold the key for 3 seconds. Use the Up/Down keys to alter parameters and the SET key to confirm. Parameter Code Parameter Name Description / Options Default Value InP Input Type Selects sensor type: K , J , Pt (Pt100) Ctrl Control Mode PID (Auto-tuning) or ON/FF (Hysteresis control) AL1 Alarm 1 Value Sets the temperature threshold for Alarm 1 AH1 Alarm Hysteresis Sets the differential band to reset the alarm Pb Proportional Band Adjusts responsiveness in PID mode (0.1 to 999.9) It Integral Time Adjusts the offset correction speed (0 to 3600 sec) dt Derivative Time Adjusts stability against sudden changes (0 to 900 sec) LoC Parameter Lock 00 = All open; 01 = Lock configuration menu 5. Tuning the Controller: PID vs. ON/OFF Mode

Shows the target temperature you want the system to reach.

Specific terminals for Thermocouples (K, J, E type) or RTDs (Pt100). Calibration should only be performed by qualified personnel

Ensure the mounting clamps and rubber gasket are included in the box. 2. Hardware Installation and Wiring

Press the button once quickly. The SV display will begin flashing.

What you are connecting (Thermocouple or Pt100)?