Running The Green Tile Test - HunterLab LabScan XE User Manual

Running the Green Tile Test

The green tile is not used during the standardization process. Instead, the green tile is used to verify the
long-term performance of your instrument. Read the green tile once a week and keep records of the
readings. You may want to create a color data view and trend plot specifically for display of green tile
data. You can then recall and display all green tile readings periodically and see any trends that develop
over time.
The LabScan XE should be in its standard configuration, with the 2-inch port plate installed and the UV
filter nominal, when these readings are made. The illuminant and observer used in your display must
match those on the green tile.
The green tile reading should vary by no more than 0.15 XYZ units from the values given on the tile.
If your reading is out of this specification, first clean the standard tiles. Then standardize and measure
the green tile again. If the reading still does not meet this specification, contact HunterLab Technical
Support for assistance. Please read "When You Need Assistance" prior to contacting HunterLab.
5-2 Maintenance and Testing 01/03
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