Fourtech Temperature Controller Manual
Connect the direct DC voltage pulse (typically 12V DC) directly to the input terminals of an external Solid State Relay, observing correct polarity.
Verify the ambient temperature matches hardware limits. Check and reverse the positive and negative wire leads on your thermocouple input terminals. Temperature Overcharging Target (Overshoot)
This section of the manual is crucial for process safety. It guides the user in setting up fail-safes; for instance, programming an alarm to trigger a shutdown if the temperature exceeds a safe threshold. By following these protocols, operators can protect valuable machinery and prevent hazardous situations, such as thermal runaway in chemical processes or overheating in plastic extrusion. fourtech temperature controller manual
What (SSR, Relay contactor, or analog valve) are you operating? Share public link
for cooling). Use the arrows to increase or decrease the output percentage. 6. Troubleshooting Connect the direct DC voltage pulse (typically 12V
| Code | Name | Function | Typical Settings | | :--- | :--- | :--- | :--- | | | Alarm 1 | Sets the temperature for Alarm 1 (High/Low). | e.g., 100°C | | AL2 | Alarm 2 | Sets the temperature for Alarm 2. | e.g., 110°C | | Hy | Hysteresis | Dead band for alarm or on/off control. | 1-3 degrees | | P | Proportional Band | PID Parameter. Low P = Aggressive heating. | Default usually 10-30. | | I | Integral Time | PID Parameter. | Default usually 100-200. | | D | Derivative Time | PID Parameter. | Default usually 20-50. | | InPt / Sn | Sensor Input | Selects sensor type (K, J, Pt100). | K type is standard for most ovens. | | OutP | Output Type | Defines output signal (Relay, SSR, 4-20mA). | SSr or rEL . | | LoC | Lock | Locks the keypad to prevent changes. | 0 (Unlock), 1 (Lock Setpoint), 2 (Lock All). |
Disclaimer: This is a general guide based on common industrial/digital temperature controllers. Specific "Fourtech" models may require a specific PDF manual for exact wiring diagrams. To make this more useful, could you confirm: What (SSR, Relay contactor, or analog valve) are
Exit the menu. The status light on the faceplate will flash, indicating tuning is active.
To change settings like calibration or hysteresis (temperature difference), hold the Set button longer to enter the menu (often labeled P1, P2, etc.):
Temperature controllers are critical components in industrial automation, ensuring precise thermal regulation for manufacturing, laboratory, and processing equipment. Fourtech temperature controllers are widely utilized across industries for their reliability, PID control accuracy, and user-friendly interfaces.