For PID control mode, if the control with default P, I and d parameters settings are not able to hold the target temperature, the built-in auto tune function can find the right PID parameters for the system automatically.
When on heating mode, it will heat up the system to the target temperature then let the system cool down.
It will repeat this process for about 3 times, then the controller will calculate the parameters.
To activate the auto tune function, press and hold the > key until the “AT” indicator starts to blink. When auto tune process finished, the “AT” indicator will stop blinking.
The new values for parameters P, I and d are calculated by the controller.
To stop the auto-tuning, press and hold > key for 3 seconds, until “AT” indicator stops blinking. The PID parameters values will not change.
Please note: The sensor, load (heater…) need to be connected properly, otherwise, the auto tune will not complete.
The time for the auto tune depends on the system response time, would be from a few minutes to hours. Only need to run auto tune one time.