Datalogic Matrix 220, Руководство по продукции

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SOFTWARE CONFIGURATION
138
MATRIX 220
Illumination Examples for DPM Applications
The following images have been captured by a Matrix 220 DPM model reader to demon-
strate positioning and contrast considerations for DPM applications.
Code Positioning with Respect to Illumination
Since the various internal illuminators on the DPM models are located above or below
the sensor, the light emitted from them can cause glare in the respective area of the
image. If this glare covers the code, the reader will not be able to see it and therefore
cannot decode it (see the first image in the table below).
Application Characteristics Non Polarized Polarized Diffused
Reading a Data Matrix code etched
on a metal surface (can lid)
Code at FoV center
No Read OK OK
Reading a Data Matrix code etched
on a metal surface (can lid)
Code at FoV top
OK OK OK
Reading a Data Matrix code etched
on a metal surface (can lid)
Code at FoV bottom
OK OK OK
Reading a Data Matrix code etched
on a metal surface (can lid)
Code at FoV right
OK OK OK
Reading a Data Matrix code etched
on a metal surface (can lid)
Code at FoV left
OK OK OK