INFICON Composer Gas Concentration Controller - Manual (Page 33)

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Composer Operating Manual
1.10.3.2 Connections To Earth Ground
The ground connection on the Controller is a threaded stud with a hex nut. It is
convenient to connect a ring terminal to the ground strap, thus allowing a good
connection with easy removal and installation. The ground connection to the
Transducer may be made to any one of four 1/4"-20 mounting holes. See
Figure
1-3 for the suggested grounding scheme. This method ensures that no ground
potential may exist between the controller and the transducer. In many cases,
a braided ground strap is sufficient. However, there are cases when a solid
copper strap (0.030" thick X 1" wide) (0.08 cm x 2.5 cm) is more suitable
because of its lower RF impedance.
Figure 1-3 System Grounding Diagram
When used with RF powered systems, the grounding scheme may have to be
modified to optimize the specific situation.
CAUTION
An external ground connection is required to ensure
proper operation, especially in electrically noisy
environments.
Back Panel
Transducer
Ground
Stud
Earth Ground
Reactor
Any Mounting
Hole, 4 Available
1/4"-20