Media Wedge - Techkon SpectroDens Manual

Media Wedge

The Ugra / Fogra Media Wedge CMYK is a control element for checking the color con-
sistency of digital proof systems issued by the printing institute Fogra. This practical
function is for measuring and analyzing the patches of this control element.
CHAPTER 2 – Measurement functions
First, a Color book has to be selected which
contains the Fogra reference data. If not
found in the device memory, the color book
which is valid for the paper class to be mea-
sured, can be uploaded from the Windows
software SpectroConnect.
Additional settings have to be made in the
Media Wedge Setup window. The settings
for ∆E*-tolerances are according to Fogra
specifications.
By activating Automatic Measurement the
device will make consecutive measurements
automatically with Measurement Interval to
be set. Starting and stopping a measurement
series is done by pressing the green measure-
ment button.
The reading of the media wedge is from left
to right and from first to second row. The
measurement begins with patch A1, then A2,
etc.. Wrong measurements can be corrected
by pressing the red escape button and re-
measuring.
After all measurements have been performed,
the total result will be displayed.
Media Wedges with separation bars can also
be measured by scanning. Just keep the
green start-button pressed during the whole
scanning procedure.
SpectroDens recognizes the version 2 as well
as the version 3 of the media wedge by the
different number of reference values. The
Windows software SpectroConnect allows
to analyze the measured data in detail and to
print a report (see p. 89 f.).
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