Device for determining the moisture of bulk material

摘要

The invention relates to a device for determining the moisture of bulk material, consisting of at least one probe rod 1 guided movably in an insulating tube 2, a wiping device 15 for the probe rod 1, comprising at least one wiping ring 16, being arranged at the free end of the insulating tube 2. In order to achieve a complete cleaning of the probe rod 1 of clinging bulk material, it is provided according to the invention that the wiping device 15 comprises at least one second, inner wiping ring 17 and that an axial interspace is formed between the at least two wiping rings 16, 17 as a fluid pressure chamber, which is connected to fluid pressure conduits 29, 30. <IMAGE>