HunterLab SpectraTrend HT, User Manual

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SpectraTrend HT User’s Guide 3.2
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Figure 67. Entering CMC Parameters (Page 3)
Belt Distance, Height, Color Tracking
Select PAGE 4 to enter the information on the HEIGHT and BELT DISTANCE . BELT DISTANCE is
defined as the distance from the front surface of the sensor window to the selected
background. Since the SpectraTrend HT measures height by detecting the angle of the light
reflected to the sensor, height is not measured absolutely, and all heights are relative.
Therefore, the background distance cannot be determined with a ruler. Instead, perform the
BACKGROUND HEIGHT DETERMINATION procedure using the DISTANCE SENSOR in the
DIAGNOSTIC MENU and enter the value in the setup.
PRODUCT SETUP, (TAB) PAGE 4: MIN HEIGHT
The MINIMUM HEIGHT distance is defined as a distance measured from the Belt
Distance in the height units selected. Any product or background located beyond the
MIN HEIGHT distance will not be included in measurement. However, since the
SpectraTrend HT measures height by detecting the angle of the light reflected to the
sensor, height is not measured absolutely, and all heights are relative. Therefore, the
MIN HEIGHT distance cannot be determined with a ruler. Instead, perform the MIN
HEIGHT DETERMINATION procedure using the DISTANCE SENSOR in the DIAGNOSTIC
MENU and enter the value obtained as this parameter in the setup. As a general rule,
the MIN HEIGHT should be one-half the actual product height.
PRODUCT SETUP, (TAB) PAGE 4: MAX HEIGHT
The MAX HEIGHT distance is defined as a distance measured from the Belt Distance in
the height units selected. Any product or background located beyond the MAX HEIGHT
distance will not be included in measurements. However, since the SpectraTrend HT