INFICON SQC-222 Thin Film Deposition Controller - Manual (Page 69)

Chapter 4 Maintenance
4-3
4.3 Option Card Installation
The option card adds two additional sensor inputs, two control out puts, and 8 digital I/O
signals to the SQC-222. To install the option card follow these steps.
1. Unplug the SQC-222 from the main power!
2. Remove (and save) the eight screws securing the top cover. Remove the cover.
2. Remove the three screws securing the option cover plate to the back panel.
3. Remove the screws from the two 5/8” standoffs near the rear of the main PCB.
4. Plug the short ribbon cable into the connector on the main PCB.
5. Slide the option card PCB into the back panel.
6. Secure the option card PCB to the main PCB with two 2” screws and lockwashers.
7. Screws the four BNC hex nuts to the back panel.
8. Screw the two jack screws and washers into the back panel I/O connector.
9. Replace and attach with the eight screws saved in step 1.
10. At turn on the SQC-222 will now display four channels on the main display.
4.4 Half Rack Adapter Installation
The Half Rack Adapter option (PN 900-016) adapts the SQC-222 to many other 5 1/4”
high half rack instruments.
The option consists of two standard rack mount ears and an adapter bracket. Attach
one of the standard rack mount ears to the SQC-222 with the 10-32 flat head screws
supplied. Attach the adapter bracket to the other side of the SQC-222.
Place the other instrument so that its rack mount ear matches the two threaded 10-32
holes on the adapter bracket. Attach the other instrument to the adapter bracket with
two standard 10-32 rack mount screws (not supplied).