Measurement within the Digester was not possible so far, due to the environmental conditions.
So far, any information about e.g. the water content of chips in the digester was a calculation based on external measurements plus some assumptions.
As a result, the values used were often not very accurate and difficult to use for plant automation.
APOS and ANDRITZ, combining their expertises, started a development process in 2018.
The joint team developed the ultimate alternative to the formerly used rough estimates on moisture content within the refiner.