While terminal layouts can vary slightly by specific model number (e.g., FTC-series), standard Fourtech controllers use the following universal layout:
A digital temperature controller is an instrument that takes an input from a temperature sensor (like NTC) and controls a heating or cooling element to maintain a set temperature.
If you can tell me the (e.g., FC-040, PID series) or the type of machine (e.g., cooler, heater) it's used for, I can provide a more tailored troubleshooting guide or a more detailed, specific wiring schematic for you.
As I don't have the exact manual you're looking for, I recommend checking the following:
Shows the target temperature setting (Set Value) or parameter codes during configuration. fourtech temperature controller manual
Universal input supporting Thermocouples (K, J, E, T, R, S, B) and RTDs (Pt100, Cu50).
If your manual search fails, the PXR series manual covers 80% of the functionality across other FourTech models.
⚠️ Always disconnect power before wiring. Use correct gauge wire for load current (usually ≤10A relay).
Connect thermocouple (K, J) or RTD (Pt100). Note: Ensure correct polarity for thermocouples. Control Output (Relay/SSR): While terminal layouts can vary slightly by specific
Install a fuse and circuit breaker between the power source and the controller. 3. Quick Operation Guide Setting the Target Temperature (SV): Press the Set key briefly.
This determines how far the temperature must go from the set point before the compressor restarts. Example: Set Temp is , and Differential is . The compressor stops at and restarts at 5. Manual Mode Operation
The front panel allows you to monitor parameters and modify system configuration. Visual Indicators
| Series | Typical Use Case | Key Feature | Manual Focus | | :--- | :--- | :--- | :--- | | | Plastic molding, packaging | Universal input (TC/RTD), 1/16 DIN size | PID auto-tuning, alarm outputs | | PXV Series | Vacuum furnaces, high-temp kilns | High accuracy, ramp/soak programming | Multi-segment profiles, event outputs | | PCD Series | OEM machinery, chillers | Compact, relay or SSR drive output | Simple ON/OFF or PID selection | | SD Series | Basic temperature monitoring | Uncomplicated interface, LED display | Parameter lock, offset trimming | Universal input supporting Thermocouples (K, J, E, T,
The upper display (usually red). Shows the current temperature measured by the sensor.
Fourtech temperature controllers are reliable industrial instruments used to regulate heating and cooling processes. They maintain precise temperature thresholds across manufacturing, catering, and laboratory environments. This comprehensive manual covers everything you need to install, program, and troubleshoot your Fourtech device. Technical Specifications & Wiring
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Press the key once to lock in the new target temperature. The green display will stop flashing. Tuning the PID Control Loop