REA ScanCheck 3n, Руководство пользователя

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Operating Manual Page 53 / 116 Copyright © REA Elektronik
REA ScanCheck 3n
V 1.2.0 24/02/2020
REA VERIFIER
Measuring tolerances, measurement head, for apertures of 20mil
Aperture
4
20 mil, 0.5 mm
Light source 670 nm at 45°
Symbol Passed 4.0
Code type REA test code
Code content 4008654123454
The following table lists the criteria to be verified in accordance with ISO/IEC 15426-1.
Measuring parameters Unit Tolerance Reference
Rmax (see histogram)
5
% +/- 5 Measurement
values on the
stamped
reference test
report
Rmin (see histogram)
6
% +/- 3
Decodability %* +/- 8
Defects %* +/- 8
*In standard ISO/IEC 15426-1 the values for defects and decodability are cited as absolute values
with reliable tolerances of +/-0.08. For improved comprehensibility, we refer to these two values on
the reference report as percentages. The corresponding tolerance values are the/- 8. In the
event that the tolerances for decodability and/or defects are exceeded, the device must be
inspected and serviced at the manufacturer.
Other test criteria:
Measuring
parameters Unit Tolerance Reference
Decode - No tolerance Measurement
values on the
stamped
reference test
report
Symbol contrast % +/- 8
Modulation % +/- 12
Module size (Z module) µm +/- 5
Average bar variance
(shown as mean value) µm +/- 15
Maximum bar variance
(shown as bar, two values
must be checked) µm +/- 20 Tolerance refers
to the mean
value on the
reference test
report
E-Value variance µm +/- 25 Tolerance refers
to 0
The terms “calibration” and “adjustment” are used in accordance with the definition of DIN 1319-1
and JCGM 200.
4
Aperture – the light point size in accordance with the definition of ISO/IEC 15416
5
Rmax – the maximum reflection in the symbol determined in accordance with ISO/IEC 15416
6
Rmin – the minimum reflection determined in accordance with ISO/IEC 15416