38 Analyzer Description
CFPP Process Analyzer CFPP-4.2 03/2016
5.4 Control box
Fig. 5.5: Typical example of a control box
The pressurized control box contains all necessary electrical and electronic components for
controlling the analyzer. These are, for example:
• Industry standard PC (Analyzer Control Unit) running the PACS
software, which provides the user interface, controls and monitors all
processes, and handles external communication.
• Components for the overpressure control system of the housing
• I/O board for processing internal and external digital and analog inputs
and outputs
• Power supply units
• Transformers to adapt the power supply voltage for the analyzer
• Control components for the Chiller for Liquids
• Automatic circuit breakers, motor protection switches and error relays,
filters, and contactors
• Measuring transmitters and amplifiers, switching amplifiers
• Cooler for the housing (optional)
Note: The description given here refers to the standard system. The construction of
your control box may be different from the one described here.
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