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Notice!
The beam exits the BCL
- line scanner parallel to the housing base
- oscillating mirror and deflection mirror perpendicular to the housing base
The black areas in figure 6.1 are the housing base. The best read results are obtained when:
• The BCL
dent on the barcode at an angle of inclination greater than ±10° ... 15° to vertical.
• The reading distance lies in the middle area of the reading field.
• The barcode labels are of good print quality and have good contrast ratios.
• You do not use high-gloss labels.
• There is no direct sunlight.
6.3.2
Avoiding total reflection – Line scanner
The barcode label must be positioned at an angle of inclination greater than ±10° ... 15°
from vertical in order to avoid total reflection of the laser beam (see figure 6.5)!
Total reflection occurs whenever the laser light of the barcode reader is directly incident on
the surface of the barcode at an angle of 90°. The light directly reflected by the barcode may
overload the barcode reader and thereby cause non-readings!
The BCL 500
that the scanning beam is incident on the barcode at an an-
gle of inclination greater than ±10° ... 15° to vertical.
Figure 6.5:
6.3.3
Avoiding total reflection – oscillating/deflection-mirror scanner
For the BCL 500
angle of 90° to vertical.
For the BCL 500
adjust the direction of the beam by ±10°.
For the BCL 500
devices with heating) is to be taken into account.
This means that in order to be on the safe side and to avoid total reflection, the
BCL 500
i
\ BCL 501
20° ... 30°!
Leuze electronic
500i
\ BCL
500i
\ BCL
501i
is mounted in such a way that the scanning beam is inci-
i
\ BCL 501
i
should be mounted in such a way
Total reflection – line scanner
i
i
\ BCL 501
with oscillating/deflection mirror, the laser beam exits at an
i
\ BCL 501
i
with deflection mirror, it is also possible to use software to
i
i
\ BCL 501
with oscillating mirror, the swivel range of ±20° (±12° for
i
with oscillating/deflection mirror must be inclined upward or downward
BCL 500
Installation and mounting
501i
as follows for the respective devices:
i
i
\ BCL 501
Barcode
67
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