Magnetic Level Transmitters, use a small, magnetic object suspended in a buoyant float. This is normally inside a narrow auxiliary column, in order to restrict any lateral movement of the float. While the float sits on top of the liquid, a different magnetic device measures the movement of the float.
This allows an accurate, consistent fill level to be transmitted. This method is useful for continuous measurement, due to the float’s tendency to rise or sink in harmony with the level of liquid…