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Color iQC Help - X-Rite

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For more information about using the colored check tile option, see<br />

Calibrating with a <strong>Color</strong>ed Check Tile.<br />

Calibrating the UV Filter<br />

Some intruments have the capability to filter the ultra-violet portion of the<br />

spectrum for use when calculating the Whiteness Index of a particular standard<br />

or sample. For instruments so equipped, <strong>Color</strong> iControl has a routine which<br />

allows the filter to be calibrated. This requires a GANZ Whiteness standard or a<br />

CIE Whiteness standard, both of which should have been provided with the<br />

instrument. For more information, see UV Calibration Dialog.<br />

Calibrating with a <strong>Color</strong>ed Check Tile<br />

<strong>Color</strong> iControl has the ability to calibrate with a colored check tile.<br />

GretagMacbeth recommends using a third colored tile in addition to the light trap<br />

and white tile when calibrating the sensor. If the instrument fails when reading<br />

the colored tile, the calibration fails and no measurements can be taken. This<br />

helps to ensure that measurements made by the spectro are uniform, accurate,<br />

and stable over time. In addition, the check tile's measurements are stored in a<br />

file so that an historical record of the instrument's performance is maintained.<br />

This record can be of significant help when attempting to analyze problematic<br />

measurements or troubleshoot the instrument.<br />

Jumps are provided below to topics containing instructions for using or<br />

disabling this option.<br />

Setting Up the <strong>Color</strong>ed Check Tile Option ? Using the <strong>Color</strong>ed Check Tile During<br />

Calibration ? Disabling the <strong>Color</strong>ed Check Tile Calibration Option<br />

Setting Up the <strong>Color</strong>ed Check Tile Option<br />

GretagMacbeth recommends using a colored check tile as part of your<br />

routine calibration procedure. You may select to enable the colored check tile for<br />

all modes or for only Mode 0. (See checkbox options in the image below.) This is<br />

done through the Sensor Properties box accessed through Sensor Management.<br />

The system will automatically use the name and serial number entered during the<br />

spectro installation process to construct a name for the check tile file using the<br />

form, "sensorname_serial#_0.job". Of course, the final element, "_0", will vary<br />

depending on the number of the mode you are creating the check tile file for. This<br />

filename will be displayed in the Sensor Properties dialog box in the field<br />

provided for it (see image below). However, at this point, only the filename has<br />

been created; the file itself still does not yet exist.<br />

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