PerkinElmer Spotlight 200, User Manual, Page: 89 / 132

Techniques for Collecting Spectra . 89
Figure 36 The Automated ATR Crystal Assembly
6. Slide the crystal assembly into the holder.
You will feel it click into place as it comes into contact with a magnet inside the holder.
7. Rotate the crystal assembly until the alignment groove is in line with the sprung-loaded
ball bearing in the wall of the holder (Figure 37).
You will feel the ball bearing slide into the alignment groove and lock the crystal
assembly in position.
Figure 37 Crystal Assembly aligned in holder
8. Refit the height-adjustment nut.
Take care not to damage the crystal.
9. Refit the ATR crystal holder to the microscope, as described on page 81.
10. Align and adjust the ATR crystal holder, as described on page 84.
Alignment groove
Alignment groove
Ball bearing