Fourtech Temperature Controller Manual Free Upd
Set to K or J for thermocouples, or Pt for Pt100 sensors.
Thermocouples (K, J, E, T, R, S) and RTDs (Pt100, Cu50).
If you tell me the model number (e.g., FT-300, FT-C40), I can help you: Identify the exact wiring diagram . Guide you through the initial setup steps . Find the default parameter values . fourtech temperature controller manual free
Adjusting hysteresis for tighter temperature control.
Most Fourtech and similar digital controllers follow a standard logic for basic operation: : Set to K or J for thermocouples, or Pt for Pt100 sensors
You must tell the controller what kind of sensor is plugged in. Choosing the wrong input type will result in an "Err" message or wildly inaccurate readings. Auto-Tuning (AT):
Typically operates on standard 100–240V AC supply, though some 12/24V DC versions exist. U ser G uide - Fourtec Guide you through the initial setup steps
FOURTECH TYPICAL REAR TERMINAL LAYOUT +-----------------------------------------+ | (1) Power AC (L) (6) Alarm 1 (COM)| | (2) Power AC (N) (7) Alarm 1 (NO) | | | | (3) Output + (SSR) (8) Sensor A (+) | | (4) Output - (SSR) (9) Sensor B (-) | | (5) Output (Relay COM)(10) Sensor C | +-----------------------------------------+ Wiring Steps
First, note that is a less common brand than Omron, PID, or Inkbird. It may be a generic or rebranded controller (often used in industrial ovens, HVAC, refrigeration, or extruders). Look for the exact model number on the device label (e.g., FTC-100, FTC-2000, 4T-48, etc.). This is essential.
Switches control modes or acts as a back/escape key.
The sensor is not connected properly, or the sensor type ( ) is misconfigured in settings. Controller Constantly Toggling On/Off: The Hysteresis ( ) setting is too low. Increase the hysteresis value. Temperature Overshoots the Setpoint: The PID parameters ( ) need tuning, or the value is too high. Relay Not Activating: Ensure the unit is set to heating ( ) or cooling (