Fourtech Temperature Controller Manual ((full)) May 2026

Use the key to cycle through codes like Sn (Sensor Type), AL1 (Alarm 1), and P (Proportional Band).

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 .

Check the P (Proportional) and I (Integral) settings. If P is too high, the controller acts too cautiously.

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.

By following these steps, you can bypass the frustration of a complex manual and get straight to precise temperature management.