General Information Cha
ter Three: Overview
34
A Typical Control System
The 640 Series Pressure Controllers are used in a wide variety of control systems, most of which
share several characteristics. Typically, a control system consists of four basic parts:
•
Pressure transducer
•
Control electronics
•
Control valve
•
Pressure system (whose pressure is being controlled)
The 640 Series Pressure Controller provides the first three components.
•
The pressure transducer is an MKS Baratron capacitance manometer.
•
The 640 Series unit contains the electronics necessary for pressure control.
•
The control valve included in the 640 controller is a proportional control valve.
•
The pressure system can be any process requiring pressure control.
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