Technical data

Settings

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5.5.6 – 5.5.6.1

5.5.6 Measurement parameters for printing plate

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The light trap effect will be corrected by using the Yule-Nielsen formula for the calculation of

the dot area of printing plate. The Yule-Nielsen coefficient has to be entered. On most printing

plates you achieve good results with coefficient values from 1.08 to 1.24 (typically 1.15).

You can also switch off the Yule-Nielsen-correction by setting the Y-N-coefficient to 1.0.

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5.5.6.1 Setting of the Yule-Nielsen coefficient for measuring printing plates

Procedure:

• Select the menu line Printing plate by turning the <Control ball> and confirm the selection by

pressing the <Measurement key>.

• Select the menu line Y-N coefficient with the <Control ball> and confirm the function by pressing

the <Measurement key>.

• The entry field for the Yule-Nielsen coefficient is shown on the display.

• Press the <Measurement key>; the Y-N coefficient is shown in reverse video on the display.

• Enter the Y-N coefficient with the <Control ball> and confirm the entry by pressing the

<Measurement key>.

• The display shows Return in reverse video.

• Terminate the entry by pressing the <Measurement key>.

• Select the menu line Return with the <Control ball>.

• Press the <Measurement key> several times to return to the main menu.