Fourtech Temperature Controller Manual ((top)) · Recommended & Validated

The measured temperature is below the range of the sensor or the sensor is disconnected. Troubleshooting Tips

Before diving into the settings, familiarize yourself with the interface. Most Fourtech models feature: Displays the current temperature. SV (Set Value): Displays your desired target temperature. fourtech temperature controller manual

Verify the Hy (Hysteresis) or AL settings to ensure the alarm threshold isn't set too close to your working temperature. The measured temperature is below the range of

To change the sensor type or alarm limits, you need to enter the secondary menu: Press and hold the key for 3-5 seconds. SV (Set Value): Displays your desired target temperature

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

Mastering Your Fourtech Temperature Controller: A Comprehensive Guide

Terminals for AC85-265V or DC24V depending on your model.