X - R i t e e X a c t 2
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Averaging
Used to set the number of measurements required to obtain an average. The
number of measurements can be set from 2 to 5 and Off. The number of
measurements taken in the sequence is displayed (1) in the bottom left side during
the measurement. In this example, averaging is set to an average out of 3
measurements. The user has taken 1 out of 3 measurements.
Tap the Check symbol if you are satisfied with the measurements before all the
required samples have been measured. The average is now calculated from the measurements that are done.
Function Settings
Used to set the parameters for the various press functions.
Density Display Settings
: Used to configure which color responses are shown. Auto color picks the
dominant color response and also displays the last measurements for the other colors (C, M, Y, and K). Spot
color picks the dominant spectral density wavelength.
All Densities Display Settings:
Used to select what density values the device displays. Options are: CMYK
and CMYK+SPOT.
Tone Value Formula:
Used to set the tone value formula for dot calculation. The formulas are individually
configurable for C, M, Y, K and Spot Colors. Spot Color Tone Value (SCTV) provides tone values of colors
that correlate well with visual appearance. If a tone ramp is printed with visually equidistant steps the
corresponding SCTV values should have approximately equidistant percentages from 0 to 100%. For the
Murray-Davies formula, the degree of light optical absorption is predefined. For Yule-Nielsen formula, this
can be adapted for different conditions. When Yule-Nielsen formula is selected for the color, you set the
coefficient. Options are: Murray-Davies, Yule-Nielsen, or SCTV (ISO 20654).
Tint Patch Percents:
Used to enter up to five tint patch percentages for tint patch measurements. Tap the
switch icon
to turn on the individual tint patches.
Printing Plate Yule-Nielsen Factor:
Used to set the factor that is used to calculate the physical dot area
coverage of your printing plate. The factory default value is set at 1.15. The numeric value can range from
0.50 to 9.90.
Printing Plate Type:
Used to set the printing plate type used. Options are: Positive and Negative.
TV/TVI Preferences:
Used to set how you want to calculate tone value. Options are: TV (tone value) and
TVI (tone value increase).
Density White Base
Used to set a paper or absolute requirement for various density functions. If you select Minus Paper, as white
base, all subsequent measurements will refer exclusively to the printed ink layer, while the paper color effect will
not be included. If you select Absolute the measurements will also include the paper effect.
To make sure that a paper measurement is takes for all densitometric functions, select Minus Paper. If paper
measurements are not a requirement, select Absolute.
The functions include Density, All Densities, Density Trend, and Hue Error & Grayness. Some functions require
a paper measurement and some may not.
Density Status
Used to select the status for all densitometric functions. Options are: ISO Status A, E, I, T, and G.
Density Measurement Condition
Used to select the measurement condition for densitometric (e.g. Density, TVI, Trapping, etc.) functions. Options
are:
M0(No) – No Filter
M1(D50)
M2(UVC) – UV Cut Filter
M3(Pol) – Polarization Filter (not in eXact 2 Xp).
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Summary of Contents for X-Rite eXact 2
Page 1: ...User Guide ...
Page 2: ......
