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XTC/3 Operating Manual
Chapter 2
Installation and Interfaces
2.1 Location Guidelines
Before permanently installing XTC/3, read this entire chapter on Installation and
Interfaces. Follow its recommendations as closely as possible. Failure to adhere to
these practices may adversely affect the performance and longevity of XTC/3.
2.1.1 Sensor Types
The choice of sensor type is dictated by the process, the deposition material and
the physical characteristics of the process chamber. General guidelines for each
sensor type produced by INFICON are outlined in the Sensor Data Sheets on the
www.inficon.com
website.
For specific recommendations, consult your INFICON representative.
NOTE:
If the installation replaces an XTC/2 or XTC/C with a dual sensor, and
sensor type
CrystalTwo
is selected, PN 779-220-G1 (6 in. BNC Cables)
or PN 779-220-G2 (20 in. BNC Cables) and Xtal 2 (CrystalTwo) Switch is
required. XTC/3 uses only one Crystal Interface Unit (XIU) signal
connection at XTC/3 for the dual sensor. The Xtal 2 Switch is wired in
parallel with the solenoid valve (PN 750-420-G1) to route the XIU
connection from one to the other crystal at the same time that the shutter
is activated. If sensor type
Dual Head
is selected, two XIU packages are
required and connected to Sensors 1 and 2.
NOTE:
XTC/3 does not support CrystalSix sensor (PN 750-260-G1), which is no
longer produced. Current product CrystalSix (PN 750-446-G1) is fully
compatible with XTC/3.
CAUTION
The performance of XTC/3 depends on the careful installation
of the chosen sensor.
Improper installation will cause problems with deposition
repeatability, crystal life and rate stability.