AQ-00275-000, Rev. 3
16
reflectance port. To mount a sample at 8°, you must use the 8° wedge. Flip the clamp 180°, as
shown in Figure 7, and slip the sample between the clamp and 8° wedge.
The 8
°
wedge should be installed at the sample reflectance port when taking 8
°
hemispherical
reflectance measurements. The 0
°
wedge should be used in all other cases. Figure 8 describes the
proper way to load the sample holder. When mounting a sample or reflectance standard at any port,
you should make sure the reflecting surface lies flat against the wedge and completely fills the port
surface area.
In some instances, you may need to load a light trap at the reference or sample reflectance port. A
light trap is included with your accessory as a standard component. The light trap can be loaded at
either reference or sample reflectance port and using either wedge.
The metal cover to both reference and sample reflectance ports should be installed when taking
measurements.
0 End
8 End
Figure 7. The sample holder setup for
8° incidence.
8 Wedge
Dovetail
Sample Clamp
Reference or Sample
Reflectance Port
Reflectance Standard
Figure 8. Loading a standard or sample into the sample
holder.