2.2 How do I scan codes?
This section explains the best way to scan codes:
The scanner must be held at a slight angle to the
bar code. (Do not hold the scanner at a right angle
to the bar code.)
The red scanning pattern which serves as an
alignment aid should be positioned at the center of
the code. This ensures that the center point of the
camera is aligned with the code.
(The scanner will not be able to detect the label
correctly if it is not fully captured by the camera.)
The red scanning pattern is smaller when the
scanner is held closer to the code. Small codes
should be read at a smaller reading distance. With
larger codes, the reading distance must be large
enough so that the camera can capture the
complete code.
2.2.1
Testing the scanner
The adjacent bar code can be used for testing the scanner, the module
size is 0.5 mm (20 mil)
Code 39 bar code sample
Leuze electronic
IT1910i
7
