X - R i t e e X a c t ™ I n s t r u m e n t
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7.
View measurement results.
Left Screen Side (Current)
The first value is the current Delta E of the sample to the current standard. The lower number
indicates the density response and value of the solid ink being measured. An arrow indicates
which direction the density should be adjusted (see right side).
Coated or Uncoated appear in the lower left corner depending on the function settings selected for
BestMatch. This affects the formula on how the corrections are estimated. It should be set based
on the substrate (paper type) being measured.
Right Screen Side (BestMatch)
The first value represents the estimated color difference after the suggested adjustment is made.
The second value is the suggested density adjustment, positive or negative. This value is useful
for offset printers that adjust the ink by thickness. For other type of presses (ie. Flexo), ink adjust
are done by concentration (third value).
NOTE
: The maximum permitted color difference
∆
E is determined for each print job. If the value
of
∆
E best is greater than the specified
∆
E, changing the density will not achieve the desired color
quality.
∆
E Trend Function
This function plots the Delta E (uses the active delta E method setting) value of the current and
past samples that have been measured to the current standard. The graph will show up to 10 of
the latest readings.
Color coding for bar graphs:
•
White: past sample to a standard that doesn’t have any active Pass/Fail tolerances
•
Blue: latest sample/reading. No pass/fail
•
Red: sample that failed the current standards Pass/Fail tolerance
•
Yellow: sample hasn’t failed, but has exceeded the action limit threshold
•
Green: pass
Search/Compare tools: Resets if the standard changes, even if the previous standard is returned
to. Readings will only be added to the graph if it is the current function on screen.
Job Tools: Track measurements for every patch for a particular Patch type. For example, if used
as part of the function list for solid patches, the graph will track any measurement made to any
of the solid patches the job template contains. The graph does not have to be on screen for it to
gather new readings made towards a solid patch.
∆
E Trend Measurement
The graph will show up to 10 of the latest readings. An overall average is shown at the top for all
readings taken in the trend graph (even if more than 10 readings are taken).
1.
Select
∆
E Trend function.
2.
Measure paper.
