Optical Speed Measuring System - HBM T10FS Operating Manual

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4.9.2 Optical speed measuring system

Axial alignment
There are markers in the optical sensor for axial alignment (orientation lines).
When installed, the slotted disc should be exactly above these alignment
lines. Divergence of up to "2 mm is permissible in measuring mode (total of
static and dynamic shift).
Fig. 4.13: Position of the slotted disc in the speed sensor
HBM
Slotted disc
Alignment lines
T10FS
A0785-1.4 en