SYSTEM DESCRIPTION
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8020065-ZLP4/2017-08-10|SICK
Subject to change without notice
O P E R A T I N G I N S T R U C T I O N S | Master Data Analyzer
The horizontal light grid’s is mounted on the frame underneath the glass plate with the
receiver above it. This minimizes any interference caused by ambient light or dirt. The
beam from the lower light grid passes through the glass plate to the upper light grid. The
vertical light grid’s sender is secured to the frame with two handles.
Fig. 7: Measurement gantry with light grids
A wire draw encoder mounted in the housing interior supplies the positional data of the
light grids above the object which is required for measuring lengths. The encoder
transfers the linear movement obtained from the path of the measurement gantry into a
rotational movement. The drum rotation, which is proportional to the length, is output to
the controller via corresponding incremental signals regarding the exact positioning of the
light grids.
Fig. 8: Wire draw encoder
Wire draw encoder
