INFICON Cygnus 2 Thin Film Deposition Controller - Manual (Page 42)

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Cygnus 2 Operating Manual
2.1.3 Cygnus 2 Installation
The Cygnus 2 is designed to be rack mounted. It may be also used on a table. The
Cygnus 2 is forced-air cooled, with the air flow exiting the rear of the Cygnus 2 for
clean room convenience.
It is generally advisable to centrally locate the Cygnus 2, minimizing the length of
external cabling. The cable from the instrument to the XIU is typically fifteen feet.
Thirty, fifty and one hundred foot cables are available.
2.2 Avoiding Electrical Interference
Careful consideration of simple electrical guidelines during installation will avoid
many problems caused by electrical noise.
To maintain the required shielding and internal grounding and ensure safe and
proper operation, the Cygnus 2 must be operated with all enclosure covers,
sub-panels and braces in place and fully secured with the screws and fasteners
provided.
CAUTION
When using the Cygnus 2 with an RF sputtering system,
the cable between the Cygnus 2 and oscillator should be
kept as far away from the RF transmission cable as
possible. Interference from the RF transmission cable
may cause an erroneous crystal fail.
2.2.1 Verifying/Establishing Earth Ground
If a ground must be established, the following procedure is recommended:
 Where soil conditions allow, drive two ten foot copper clad steel rods into the
ground six feet apart. Pour a copper sulfate or a salt solution around each rod
to improve the ground’s conduction. A near zero resistance measurement
indicates earth ground is achieved.
 Keep connections to this grounding network as short as possible.