|Manual Control||Automatic Control|
|One-off sampling, small volumes of samples (100-200 g)||Continuous measurement with large volumes (2 m3)|
|Measuring takes place at the end of the process, with delay||Continuous measuring|
|Intervention is subjective and late||Intervention takes place instantly when objectively required|
|Possibility of subjective errors||Subjective errors excluded, instrumental control|
|The possibility of over-drying to be on the safe side||Regulated to achieve the set value|
|Journal recorded by the operator||Automatic data collection, feedback enabled|
It is obvious that automatic regulation is the only solution for managing an energy-saving, reliable and subsequently controllable drying method.