
A level indicator emits measuring pulses (M) onto the surface (O) of a material (F) that is filled into a container, wherein second echo pulses (E2) are directly reflected at the surface of the material to the transmitting and receiving antenna (A) of the level indicator. Third echo pulses (E3) are reflected by the container wall (BW) and then to the transmitting and receiving antenna (A) due to diffuse reflection on the surface (O). First echo pulses (E1) are reflected at exposed parts, e.g., w...











