Method and sampling device for automatic sampling from liquids and level detection device for detecting changes in the level of the liquid

摘要

The invention relates to a level switch for liquids in which the suction end is installed at the level to be detected via a hose or a pipe, by pumping out air from this hose or pipe when the liquid level has reached or exceeded the suction end, which leads to the fact that Liquid is sucked into the hose or tube and the resulting negative pressure in the hose or tube can be determined by a suitable measuring device and can be used as a switching value for reaching the specific liquid level.