Extensive test series were done. It generally shows the influence of the bulk solid properties as
well as the influence of the most of handling parameter of the conveyor. The used measurement
equipment is shown in [4] and [5]. Due to the development of a new telemetric system it was possible
to measure the chain tractive force (CTF) out of the closed metallic sealed system (Faraday screen)
over the whole conveyor route. The diagrams in fig. 5a-f are showing the CTF in the horizontal and
vertical part, as well as in the tube bend.