Automation
Electronic Devices and Systems
Attention:
No button may be activated on the unit during the update process.
Pressing a button can disrupt the updating program and even cancel it. The existing operating
software may then be defective. If the unit no longer responds, it may need to be sent to the
manufacturer for repair.
Good to know
The unit has the standard factory settings again after an update.
All individual user settings must be made again.
3.9 Calibrating the REA ScanCheck 3n
Attention:
The REA ScanCheck 3n - like any other verification unit - should be recalibrated at regular
intervals of about 4 weeks. If the light conditions change severely, a recalibration must then
also be carried out immediately.
Calibration and measurement under the influence of direct sunlight leads to incorrect
measurement results.
In order to ensure that the unit operates properly and within its specifications, every 4 weeks:
1. carry out a white balance calibration with the white field of the calibration card and
2. measure the reference code (EAN Code 100 %) from the calibration card.
The individual results of the measurements must always lie within the specifications that are specified
in the conformity statement in the appendix of this documentation (see Chapter 3.9.3.1).
A stamped verification report of a measurement of the reference code with calibration card in new
condition is enclosed as a reference measurement. This measurement was created with a REA
reference verification unit: REA reference verification units are in turn regularly calibrated with external
reference standards for the contrast and metric values (by Applied Image, USA).
The calibration card should always be stored protected, may not be contaminated and should not be
touched on its surface. It should be replaced every 1 to 2 years by a new, original REA calibration card.
If the card was previously damaged or dirtied, immediate replacement is required.
Do not calibrate with a photocopy of the original calibration card because the metric and reflective
properties change due to the copying. For the same reason, the calibration card may also not be
laminated. Both would lead to false calibration and faulty measurement results.
Good to know
No extension plate may be installed on the REA ScanCheck 3n during calibration because these
restrict the reading field of the laser beam and falsify the reflection.
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