INFICON XTC/3 Thin Film Deposition Controller Operating Manual - Manual (Page 182)

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XTC/3 Operating Manual
2 Hold the drawer by the handle and turn it upside down to remove
the spent crystal.
3 Install a new crystal in the drawer. Observe its orientation. The pattern
electrode should face upward as shown in
Figure 6-5 .
4 Hold the retainer by its sides. Align its orientation notch with the drawer then
gently and evenly push the retainer down until it snaps firmly into the drawer.
see
Figure 6-5 . Never push down (or pull up) on the contact spring, doing so
may permanently damage it.
Inspect the whole assembly. The retainer should be even and engage the drawer
at all four corners.
Figure 6-4 Cool drawer - removing the crystal
Figure 6-5 Cool drawer - replacing the crystal