iCPlate2
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3.6.2 Calibration
As the iCPlate2 calibration is done automatically, no calibration
or “zeroing” on the plate is needed. After inputting into the
device the appropriate settings, measurements can be executed
without any further calibration.
A zeroing on the plate is however required for the “Visual
Coverage” value. This zeroing is done by a measurement on the
medium (e.g. plate ground).
To check the absolute accuracy of the iCPlate2, X-Rite
offers the iCPlate2 Target. With the help of this tool, the device can
be checked and calibrated (see section 2.6.2).
3.6.3 Measuring standard plates
Standard plates and polyester plates are measured with a red LED.
Use of the blue LED or green LED is only recommended
when the coloring of the plate has a strong proportion of light
pink hues (e.g. AGFA N90A), as little image contrast is obtained
with red illumination.
Important:
As the measurement algorithm is designed and optimized for finding dots in a
picture, measuring a 0% patch or a 100% patch can be difficult since the
software is designed for having the best possible performance for dot measure-
ments. For this reason, and in certain cases only, the displayed measurement
value for the 0% or the 100% may not be correct. The measuring range for full
precise readings is limited to 1% to 99%.
Therefore, incorrect 0% or 100% patch measurement result that may occur in
certain cases do not indicate that the instrument is functioning poorly. Please
use the iCPlate2 Target to check the accuracy of the device (see chapter 2.6.2).
3
iCPlate2
3•Operation
Summary of Contents for iCPlate2
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