Technical data

Settings
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5.6 – 5.6.1
B
C
M
Y
white
DENSITY CALIBRATION REFERENCE
Paper Absolute
Type:
Density Standard:
Filter:
Part Number:
Serial Number:
Expiration Date:
color
Part Number 34.17.73
0.00
0.00
0.00
0.00
color
2.03
1.55
1.56
1.26
0.08
0.08
0.08
0.03
2.06
1.63
1.64
1.26
47B/P
DIN 16536
Polarized
34.19.12
10002
5.6 Calibration
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The unit can be calibrated with paper white base or with absolute white base.
The desired white base, paper white or absolute white, can be selected in the menu Settings
k Measurement parameters k White base.
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Measuring with paper white base is the preferred operating mode in the graphic industry.
All measurement results are related to paper white.
The calibration is to be checked once a month and the unit recalibrated if necessary.
Measurements with absolute white base are required for applications which specifically call for
absolute white as white base, e.g. the ANSI-T reference and photofinishing or where no paper white
is available.
All measurement results are related to absolute white.
With this operating mode, the calibration is to be checked once a week, or whenever the ambient
temperature has changed by more than 10° C, and the unit recalibrated if necessary.
5.6.1 GretagMacbeth calibration cards
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The expiration date of the density calibration reference is printed on the card.
The GretagMacbeth calibration card must be kept in its protective cover in a dry place.
The calibration fields must not be scratched or soiled.
The calibration fields must only be cleaned with a soft cloth.
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