Operating Manual
Page 43 / 116
Copyright © REA Elektronik
REA ScanCheck 3n
V 1.2.0 24/02/2020
REA
VERIFIER
3.12 MAC addresses:
Every network-capable device receives a hardware address, or hardware serial number, which is
unique worldwide. This number is also called a MAC address.
Unlike the IP addresses, this number is permanently programmed in a network card or a network-
capable device. This is also the case for the network-capable REA verifiers. In a network
environment in practice, there are constellations that filter out the MAC addresses for security
reasons and integrate only those devices that have a known MAC address in the network. With
such a constellation, the MAC address of the REA device used must be entered in the filter table.
This must be done by a user with administrator rights, e.g. the IT network administration.
4 Adjustment and calibration
4.1 General information on adjustment and calibration
The basic adjustment of the verifier is carried out by the manufacturer in the test field. The
respective setting values are stored in the device.
The terms “adjustment and calibration” are used in accordance with the definition of Standard DIN
1319-1 and the ISO document JCGM 200.
Attention:
In normal operation, the REA ScanCheck 3n should be adjusted and subsequently
calibrated at regular intervals of around 4 weeks. If the light conditions change significantly
(different location), adjustment should take place again. Adjustment, calibration and/or
measurement under the influence of direct sunlight or directional light sources lead to
incorrect measurement results.
It is possible to check whether renewed adjustment is necessary with a change in location. For this
purpose, adjustment is carried out at the main location of the REA ScanCheck 3n. This is followed
by calibration, to ensure that the adjustment has been performed correctly. Calibration should then
take place at the individual locations in which measurement is to be carried out. If all results of all
calibration checks show compliance with the permissible tolerances then it is not necessary to
perform renewed adjustment with a change in location.
Calibration is frequently required before renewed adjustment. This is necessary, in order to detect
an excessive deviation before the device is correctly set by means of adjustment. If excessive
deviations are detected, the selected adjustment and calibration interval must be reduced.
Adjustment of the REA ScanCheck 3 can take place either via the menu guidance of the REA
TransWin32 program, or via the menu guidance on the device itself.
The calibration card supplied is used for adjustment and calibration. If the card is damaged or
soiled, an immediate replacement is required. It is not permissible to use a photocopy of the original
to perform adjustment or calibration. Copying changes the metric and reflection characteristics. For
the same reason, a laminate covering must not be applied to the calibration card.
The card should not remain unused and stored for more than one year. The minimum usability
period of the card is 2 years after first use. A storage time that exceeds 1 year reduces this usability
period. If the card is used for longer than two years, it is necessary to ensure, e.g. through
