Press and hold the key to enter the internal parameter menu. Navigate until you see the parameter "AT" . Change the value from 0 to 1 (or on ).
The quickest way to get the official documentation is to download it directly from a reliable, free manual database. The is the key document you need, as it contains all the details for using the appliance's control panel.
Most Fourtech controllers are distributed through industrial supply chains. If your unit didn't come with a digital link, try these sources: fourtech temperature controller manual free
Usually requires a 3-wire connection to compensate for lead-wire resistance. Control Output
Press to toggle between parameters or save modified settings. Press and hold the key to enter the internal parameter menu
: For older or specific industrial models, sites like Scribd often host community-uploaded spare parts catalogs and wiring guides.
Visit the Fourtec Download Center for the latest DataSuite, DataPass, DataNet, and MicroAir Wi-Fi user guides. The quickest way to get the official documentation
Proper installation is crucial for accurate temperature control.
Manually calculating PID values requires complex mathematical modeling. Fourtech controllers include an Auto-Tuning feature that calculates these parameters automatically.
When a system fails or encounters an anomaly, the controller flashes specific error codes on the PV display.
