This is a stepped Guide to help me level my Pinda Sensor up/down.

To Level it up just move it onto the 0 Plate, loosen it, move it onto the plate with the height difference you want to move up and screw tight again. To move down level it to one of the plates that has a difference you want to move it down, loosen it and drop it onto the 0 plate, tighten it and done.