2 - 6
PN 074-550-P1D
SQC-310 Operating Manual
2.5 Ground Requirements
Low impedance wires or straps must be used to connect the chassis of all control
components to a common ground point connected to earth ground (see section
2.5.1 for the earth ground requirement).
Solid copper straps at least 12.7 mm (0.5 in.) wide and approximately 0.56 mm
(0.022 in.) thick (as short as possible) are recommended where RF is present. This
is particularly important in high-noise e-beam systems (see Figure 2-4 for the
recommended grounding method).
The oscillator is grounded through the BNC cables, and the crystal sensor is
typically grounded to the wall of the vacuum system. If the sensor feedthrough is
not properly grounded to the vacuum system, connect a copper strap between the
sensor feedthrough and the common ground point for the system components.
Figure 2-4 System grounding diagram
Earth
Vacuum System
Ground
Oscillator
Sensor
Feedthrough
SQC-310
3-Conductor
Copper Straps to
Common Ground
and Cables
Power Cable
To Next Page
Loading...
