Fourtech Temperature Controller Manual Free __exclusive__ Jun 2026

For a standard Thermocouple, Terminals 9 (+) and 10 (-). For a PT100, you will typically use three terminals (8, 9, and 10). Control Output: Relay: Terminals 3 and 4 act as a dry contact switch.

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Prevents overshoot by reacting to the speed of temperature change. AL1 / AL2: Used to set high or low-temperature alarms. 6. Troubleshooting Common Errors For a standard Thermocouple, Terminals 9 (+) and 10 (-)