Level measuring device comprises measuring head, unit for sending and receiving echo of scanning signal, and control unit to assess quality of echo-signal and to activate actuator for changing position, if quality is assessed as inadequate

摘要

The device comprises a measuring head (3) and a unit for sending a scanning signal and receiving an echo of the scanning signal. The scanning signal is thrown back by the filling material (7). A fastening part is provided for the attachment of the unit in a carrier. An actuator is provided for inducing the measuring head. A control unit (4) is provided for assessing the quality of the echo-signal received in a given position and for activating the actuator for changing the position, if the quality is assessed as inadequate.