Datalogic Lynx D, Instruction Manual

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LYNX™
8
1
The automatic mode provides three different options to get the best tuning of the
image to be captured:
-
Automatic based on entire image: camera control mode based on the analysis
of the whole image. This mode works well in most of standard applications. It is
the default setting.
- Automatic based on central image: camera control mode based on the analysis
of a restricted area positioned in the central zone of the image. This mode is
suggested when reading small codes positioned in a dark and extensive
background.
- Automatic for highly reflective surfaces: camera control mode allowing to read
codes on highly reflective surfaces. This mode is suggested, for example, when
reading codes positioned on plastic or metal surfaces.
The fixed mode is particularly suggested for expert users. It requires a camera
calibration to adjust the acquisition parameters to the ambient light conditions. The
defined values will always be used when working with a fixed exposure.
These values are permanently saved in the reader memory.
Refer to par. 2.8 for configuration barcodes.
Aiming System Calibration
The factory-defined Lynx™ aiming system is already correctly and precisely
calibrated to the Lynx™ focus distance and therefore works for the most typical
applications. However, it is possible to modify the aiming system precision for the
following condition:
when a fixed reading distance
different
from the Lynx™ focus distance is used.
The Lynx™ focus distance is 115 mm for Lynx™ D302 / Lynx™ D402 and 55 mm
for Lynx™ D302 E.
Refer to the VisualSetup software program for performing the aiming system
calibration.
1.8 DEFINING THE FORMAT
The string of a decoded code to be sent to the host may be formatted as follows:
•
defining a simple
data formatting
(see par. 2.7 );
•
defining an
advanced data formatting
giving a complete flexibility in changing
the format of data (see par. 2.13).
The codes to be sent to the host may be also selected or ordered depending on the
following two conditions:
•
one code per scan
: Lynx™ sends the code being closest to the image center. If
the "Central Code Transmission" command is enabled, only the code containing
the image center will be transmitted (see par. 2.11.2);