Spectrum Two HATR User's Guide . 15
Figure 8 Alignment tool connected to EXT DETECTOR port
7.
Make sure that mirrors 1 and 4 (Figure 9) are against their alignment pins, using the
wrench supplied.
The top plate of the accessory can be removed to confirm this. Figure 9 shows the
mirrors and the corresponding adjustment nuts on the rear of the HATR are shown.
Mirror 1 should be rotated fully clockwise and mirror 4 should be rotated fully
counterclockwise, looking from the front of the sample compartment.
Figure 9 HATR with top plate removed (viewed from rear to show the adjustment
nuts)
Figure 10 shows the optical path of the accessory, viewed from the rear as in Figure 9.
Figure 10 Optical path of the accessory
Mirror 2
Mirror 4
Mirror 1
Mirror 3
Mirror 2
Crystal
Mirror 1
Mirror 3
Mirror 4
Alignment pin
Alignment pin
IR beam (from left of
sample compartment)
