I have not read the other comments yet, so forgive me if this has been said but TSP have limit switches, encoders mounted to limit speed at differing heights. You need the Crown Handset to adjust these and calibrate them.
That is unless you have a news TSP 3000+ model that you can do this in the display panel.
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.