FUNCTIONAL DIAGNOSIS OF AN ELECTROMECHANICAL FILL STATE MEASURING DEVICE

摘要

The invention relates to a method for the functional diagnosis of an electromechanical fill state measuring device in which a displacement element on a measuring wire is lowered into a filling material in a container such that in an equilibrium state, the weight of the displacement element equals the resulting weight of the displacement element minus a displacement element buoyancy, which depends on at least one equilibrium volume. The resulting weight is specified, and the specified resulting weight is kept constant by correspondingly changing the length of the measuring wire in the equilibrium state. The fill state of the filling material is ascertained using the length of the lowered measuring wire. In order to diagnose a function, the specified value of the equilibrium volume of the displacement element is changed, and the resulting change of the length of the measuring wire is ascertained on the basis of the constant equilibrium state of the resulting weight.