Installation
Leuze
electronic
34
BCL 40
Leuze electronic
6.2.2
Device Arrangement
Selecting a mounting location
In order to select the right mounting location, several factors must be considered:
• size, orientation, and position tolerance of the bar codes on the objects to be scanned
• the reading field of the BCL 40 in relation to the bar-code module width
• the resulting minimum and maximum reading distance from the respective reading
field
For specific information, please refer to chapter "Optical Data" on page 20.
Notice!
The best reading results are obtained when
• the bar code is moved in a plane that is parallel to the reading window
• the reading distance lies in the middle area of the reading field
• high gloss labels or labels made from thermopaper are not used.
The minimum reading distance of a bar code scanner is often decisive when using label or
packaging machines due to the proximity of the scanner and labels.
Zero-distance scanner
The BCL 40 M 100 is a "zero-distance" scanner, i.e. it already has a reading field width of
70 mm at a reading distance of 10 mm (module = 0.5). Labels are also read directly at the
scanner window. In practice, however, this can lead to scratching of the scanner window and
should be avoided.
Notice!
On the BCL 40, the beam is not emitted perpendicular to the cover of the housing, but with
an angle of 10° towards the top. This angle is intended in order to avoid a total reflection of
the laser in the case of glossy labels. For highly reflective surfaces, this angle may be
widened by tilting the BCL.
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