Device description
Leuze electronic GmbH + Co. KG
BCL 300
i
\ BCL 301
i
29
4.4.3 Raster scanner (raster line)
Multiple scan lines scan the label. Due to the optical opening angle, the reading field width is dependent
on the read distance. Provided the code is located in the reading field, it can be read during standstill. If
the code moves through the reading field, it is scanned by multiple scan lines.
The integrated code reconstruction technology permits twisting of the bar code (tilt angle) within certain
limits. These are dependent on the transport speed, the scanning rate of the scanner and the bar code
properties. In most cases, everywhere a line scanner is used, a raster scanner can be used.
Areas of application of the raster scanner:
The raster scanner is used:
• When the bars of the bar code are perpendicular to the conveying direction
(picket fence arrangement)
• With bar codes with low height displacement
• With very glossy bar codes
Figure 4.12: Deflection principle for the raster scanner
4.5
Stand-alone connection BCL 300
i
The BCL 300
i
bar code reader is operated as a "stand-alone" single device.
For the electrical connection of the supply voltage, the interface and the switching inputs/outputs, either
the MS 300 hood with integrated connectors, the MK 300 terminal hood or the KB 301-3000 cable hood
together with the MA 100 terminal box are available.
NOTE
With the raster scanner, there may not be two or more bar codes in the raster area of the BCL
at the same time.
