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2.5 Vacuum Pump
The pump provides a vacuum source for the transport and sample flow system. The pump
exhaust connects to the manufacturing facility central toxic exhaust system.
Note: The exhaust line from the VC4™ should not exceed 50 feet.
The pump is located in the VC4™ system cabinet. The cooling fan circulates air over the pump.
The VC4™ system draws cooling air in through a filter mounted on the front panel of the
cabinet.
2.6 Control Systems
The VC4™ control system consists of a central data acquisition computer (DAq), and an
analyzer module.
Following is a simplified block diagram of the communications path of the control system. The
analyzer module is microprocessor controlled and contain non-volatile memory.
VC4™
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User Manual
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