INFICON MDC-260 Thin Film Deposition Controller - Manual (Page 116)

MDC-260 DEPOSITION CONTROLLER
SYSTEM INSTALLATION 9-4
3. Install a new crystal in the drawer. Observe its orientation. The pattern
electrode should face upward as shown in Figure 9-2.
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 9-2. Never push down (or pull up) on the contact spring, doing so
may permanently damage it.
5. Inspect the whole assembly. The retainer should lie evenly and engage the
drawer at all of the four corners.