Siemens MCS Belt Manual Del Usuario página 12

Recommendation:
scale a minimum of two 45°, one 35°, and one 20° retreat idler away from the head
pulley.
35° idlers
Recommendation:
adjacent retreat idler is normally higher than acceptable for belt scale installations.
We therefore suggest that when you install the scale close to the head pulley, allow a
maximum of 13 mm (½") vertical displacement between the top of the head pulley and
the top of the center roll of the adjacent roll.
20° idler,
center roll
Page 10 Milltronics MCS Belt Scale – INSTRUCTION MANUAL
On conveyors with 45° trough idlers throughout, install the
minimum 5 idler spaces
45° idlers
belt scale
The vertical displacement of the head pulley relative to the
35° idler
head pulley
20°
head
idler
pulley
13 mm (1/2")
maximum
7ML19985HN63