User`s manual

ROLL PARALLELISM
INTRODUCTION
The principle of roll parallelism measurement is to select a reference and
measure each roll in relation to this reference. The reference can be either
an existing floor reference line, running alongside the machine, or any of the
rolls. The laser beam is used to replace the reference and the Angular Prism
to transpose it to the roll to be measured. When you are taking readings on
the roll you are actually measuring the deviation in the distances between the
roll surface and the reference in two measure- ment points. The roll can be
adjusted directly or when all rolls have been measured. The adjustments are
made with real time values on the screen.
The procedure described in this chapter is for using a floor reference.
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