ABSTRACT
The present paper presents a description of the updated known system of hydrodynamic leveling, specifically, concerning the methodology of measurement on the whole, namely, it is suggested to measure both in raising the level of liquid in sensors of the system and in lowering of the level up to the initial position. The main achievement of the new device is both determination of the possible displacement of the target point against its initial position in the zero cycle and elevation (the difference between target points) in each specific cycle of measurement beginning from zero one.
