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3.1 Geometry
Use this menu option to select the scan angle for the measurements. Based on the
version of the TQC Sheen Glossmeter you are using, you can choose one, two or
three scan angles.
1. Select Setup in the main menu.
2. Select Geometry and press OK. The available scan angles display.
3. Use the arrow buttons to select the scan angle you want to activate and press
OK. The box to the right of the scan angle is checked. Press OK again to
deactivate the scan angle.
Geometry
Enable angle(s)
► 20° □
60° □
85° □
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Figure 3
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2 Setting scan angles
Note: A scan angle is specified for various surfaces. The 60º angle is the reference
angle and can be used for every surface, from matte to mirror finish. The 20º scan
angle achieves the best results on high-gloss surfaces (GU > 70 when measuring at
a 70º angle). The 85º scan angle achieves the best results on matte surfaces (GU <
10 when measuring at a 60º angle).
3.2 Calibration
Calibration consists of determining the glossmeter's metrological characteristics.
This is done by comparing the gloss values of black glass in the calibration holder.
You should check the condition of the calibration holder and the optical lenses
before calibrating the device.
The calibration holder and the optical lenses must be clean and in pristine
condition. Grease and dust can be removed with clean, dry air or the supplied
cleaning cloth. The device cannot measure surfaces accurately if the lenses are
permanently damaged. The TQC Sheen Glossmeter cannot be calibrated if the
calibration holder is damaged.
Procedure
1. Place the TQC Sheen Glossmeter in the calibration holder.
2. Select Setup in the main menu.
3. Select Calibration and press OK.
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