70
BCL 558
i
Leuze electronic
6.3
Device arrangement
6.3.1
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 558
i
in relation to the bar code module width.
• The resulting minimum and maximum reading distance from the respective reading
field (see chapter 5.5 "Reading field curves / optical data").
• The permissible cable lengths between the BCL 558
i
and the host system depending
on which interface is used.
• The correct time for data output. The BCL 558
i
should be positioned in such a way
that, taking into consideration the time required for data processing and the conveyor
belt speed, there is sufficient time to e.g. initiate sorting operations on the basis of the
read data.
• The display and control panel should be very visible and accessible.
• For configuring and commissioning with the webConfig tool, the USB interface should
be easily accessible.
For specific information, please refer to chapter 4.4.
Notice!
The beam exits the BCL 558
i
as follows for the respective devices:
- 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 558
i
is mounted in such a way that the scanning beam is incident on the bar
code at an angle of inclination greater than ±10° … 15° to vertical.
• The reading distance lies in the middle area of the reading field.
• The bar code labels are of good print quality and have good contrast ratios.
• You do not use high-gloss labels.
• There is no direct sunlight.
