© REA Elektronik GmbH, Teichwiesenstraße 1 D-64367 Muehltal
REA VeriCube Operating Manual Version 2.16 – 11/2020
Page 37 of 119
5.
When determining the measuring area manually, the parallel alignment or the
90° angle must be observed. When the barcodes are positioned diagonally in
the field of view of the camera (when they are otherwise too wide), the
measuring area must be determined at an angle of 90° with respect to the
bars and not in parallel to the edges of the field of view.
Picture: Manual ROI at a more slanted position of the code
6.
It should not be measured in direct sunlight, under direct (spot) light rays or
close to infrared sources (heat emitters). Ambient light will lead to changes in
the measured results and the sunlight leads to unusable results
7.
The test sample must be positioned flat on the measurement surface. If this is
not observed, there are distortions in the measured picture level, which lead to
incorrect measurement results. The risk is particularly high in foils and labels,
which are processed as rolls. From the device position, the camera must
always record the code in perpendicular and the lighting must always be at an
angle of 45° (only the DPM measurements have particularities)
8.
The transparent materials must always be measured on a flat, unchanging and
impermeable black base (usually with a reflection of maximum 5%). When
different measurement bases are used, the measurement results are also not
comparable
9.
The synthetic aperture should always be in the range of about 80% of the
module width in order to obtain good decoded results. In case of 2D code
measurements according to ISO/IEC 15415 or DPM (ISO/IEC TR 29158), the
synthetic aperture is automatically determined
10.When there are several codes in the field of view and a code, which is not the
one centered in the middle, is recorded, the codes that are not required must
be covered.
11.The REA VeriCube must be regularly adjusted and has to be controlled with the
help of test equipment monitoring for measurement accuracy (calibrated)(see
sections 9 and 10)
