Description: Height of the liquid level on the outlet side of the system or in the center of the outlet manifold.; Name: plant outlet side height
Description: Height of the fluid level on the outlet side of the installation or in the centre of the outlet manifold; Name: Height of the outlet side of the installation
Description: variable quantity, which is not influenced by the control but is introduced into the control system from outside with the aim of making the final controlled variable follow it in a given relationship; Name: command variable