The compact installation unit comprises a base plate and a top plate, a self-aligning bolt, two countersunk screws and overload protection.

The top plate is aligned and fixed above the base plate with the two countersunk screws. This results in a stable unit. The height of the top plate can be adjusted so that it is two millimeters above the installation height with load cell.

In this state the compact installation unit serves as an installation aid and can be used as a dummy for light installation jobs.

Prior to installation, the load cell is inserted with the self-aligning bolt into the compact installation unit. Then the complete unit is installed in the scales. As the result, the load bearing implement and the installation units are aligned. The load cells are not yet loaded.

Finally the load bearing implement is lowered by undoing two hex nuts under the top plate. The weight now rests on the load cells.

In this state the load cell and the pressure pieces together form a self-centering unit. The compact installation unit permits sideways displacement of the top plate, and hence of the load bearing implement, by up to 1.5 mm (0.06 in.).

The overload protection is set so that the load cell cannot be loaded beyond the limit load.