Fourtech Temperature Controller Manual Page
Illuminates when an alarm condition is triggered. Keypad Functions
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To access deeper engineering settings, press and hold the button for 3 seconds. Use the arrow keys to navigate the codes, and press SET briefly to adjust individual values. Parameter Code Description / Valid Options Factory Default InP Input Type Selects sensor type: K , J , Pt (Pt100) K P Proportional Band Adjusts the size of the throttling zone around the SV. 3.0 I Integral Time Corrects for long-term offset errors. 240 d Derivative Time Responds to rapid temperature spikes. 60 HyS Hysteresis The switching differential for On/Off control. 2.0 AL1 Alarm 1 Value Sets the threshold temperature for the auxiliary alarm. 50.0 LCK Parameter Lock Locks out menus to prevent tampering. 00 = Unlocked. 00 How to Run Auto-Tuning (PID Calibration)
This guide simplifies the technical jargon to help you get your device up and running efficiently. 1. Understanding the Faceplate fourtech temperature controller manual
Connect to your heating element or contactor.
Showing both the Process Value (PV - current temperature) and Set Value (SV - target temperature).
This is the most common operation:
If your temperature keeps overshooting (going too hot) or oscillating, you need to run Auto-Tune. This tells the FourTech to calculate the correct PID values for your specific machine.
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The Complete Fourtech Temperature Controller Manual & Setup Guide Illuminates when an alarm condition is triggered
The upper display flashes, showing the control percentage value ( for heating,
The output relay or solid-state relay has likely failed closed (fused together), constantly feeding power to your heater. Disconnect the main power immediately to prevent a thermal runaway event. To help find specific answers for your system, tell me: