Fourtech Temperature Controller Manual !!link!! -

Small LEDs (usually labeled OUT, ALM, or AT) that show if the heater is active, if an alarm is triggered, or if "Auto-Tuning" is in progress. 2. Basic Configuration and Wiring

Once the light stops blinking, the controller has saved the optimal PID settings. 6. Common Error Codes

Specific terminals for Thermocouples (K, J, E type) or RTDs (Pt100). fourtech temperature controller manual

The "AT" light on the faceplate will blink. The controller will now "learn" the thermal dynamics of your machine.

Terminals for AC85-265V or DC24V depending on your model. Small LEDs (usually labeled OUT, ALM, or AT)

If the menu is locked, look for the LCK parameter and set it to 000 to allow changes. 5. The Auto-Tuning (AT) Function

To change the sensor type or alarm limits, you need to enter the secondary menu: Press and hold the key for 3-5 seconds. The controller will now "learn" the thermal dynamics

Safety first: always ensure the power is off before wiring. According to the standard Fourtech manual, the back terminals are typically grouped as follows:

If your temperature is "overshooting" (going too high) or "hunting" (oscillating around the target), you need to run . Navigate to the AT parameter in the menu. Change the value from oFF to on .