Automation
Electronic Devices and Systems
1. Introduction
The REA ScanCheck 3n is a mobile bar code verification unit for zero-contact inspection of the quality
of printed linear and stacked bar codes. It can be used in a portable manner on site for quick
evaluation. The verification result "good" or "error" is represented both by acoustic signals and visually
by means of multi-colored LED displays. The detailed measurement results can be stored in the
internal memory and shown on the color display. The evaluations can also be printed out with an
optionally available record printer. With the optional expansion, the ScanCheck3 can also be
connected to a PC with the REA TransWin32 software for remote control and evaluation via network
cable.
The important details of the evaluations can be read on the color display.
The arrow buttons can be used to page forward and back to additional menu fields or screen pages.
The additional detailed information can be provided via the printing of records. The unit is consequently
well suited for use in printing process control and quality control of codes on products in goods
receiving.
For evaluating film masters, applicability is limited to the reading and decoding of codes and
comparison of their content with a template.
All bar code evaluation units from REA Elektronik GmbH offer code evaluation according to the
ISO/IEC 15416 standard. The measurement and evaluation of additional, optional parameters is
additionally available. With these evaluation parameters (previously called traditional measurement
values), more detailed requirements can be evaluated, particularly for optimization of the printing
process.
Evaluations according to ISO/IEC 15416 are also known as CEN or ANSI evaluations and are also
described as ISO evaluations. In North America, the standard methods ANSI X3 182-1990 and
ANSI/UCC5 apply. The European standard EN 1635 has meanwhile been retracted (CEN evaluation).
The measurements, formerly called "traditional evaluation," are replaced by the optional parameters.
Optional parameters are based on the respective symbology standards. For EAN/UPC codes, for
example, this is the standard ISO/IEC 15420. The evaluation of optional parameters can be
categorized in classes, as in ISO/IEC 15416. This enables one to obtain a clear evaluation result,
based on previously specified, individual quality requirements.
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