5. When the buzzer sounds, you can press any key to stop.
System self-tuning
In the normal display state, press the [SHIFT] button for 6 seconds to enter the system self-tuning selection
state, the middle display area shows the self-tuning prompt "AT", the lower display area shows "0", you can
click [Inc] or [Dec] key to select "1" or "0" to display. When "1" is displayed, click [Set] key, the meter enters the
system self-tuning state, and the auto-tuning indicator flashes. After the auto-tuning is completed, the indicator
Light stops flashing and the controller will get a better set of PID parameters. The parameter values are saved
automatically. In the process of system self-tuning, press the [Shift] key for 6 seconds to stop the self-tuning
process.
If there is an upper deviation over temperature alarm during the system self-tuning, the warning light will
not be on and the buzzer will not be called, but the heating alarm relay will be automatically disconnected. The
[Set] key is invalid during system auto-tuning.
Reference and setting of temperature internal parameters
In the normal display state, press the [Set] button for 3 seconds, the middle display area displays the
password prompt "Lc", the lower display area shows the password value, and is modified by [Inc], [Dec] and
[Shift] The required password value. Then click the [Set] button. If the password value is incorrect, the controller
automatically returns to the normal display state. If the password value is correct, enter the internal parameter
setting state, and then click the [Set] button to modify each parameter in turn. Press and hold the [SET] button for
3 seconds to exit this status. The parameter values are automatically saved. See the tables below for details:
8