The main four process variables encountered in the field of Instrumentation and Control are temperature, pressure, level and flow. However, none of these parameters provide qualitative information about the actual substance being measured and controlled. Process analyzers are used to determine qualitative properties of a process parameter, such as impurities in water or moisture content of a gas. A technician may encounter various types of analyzers depending upon the industry and specific parameters of concern within the process.
"State the reasons for using process analyzers.
Describe the components of process analyzer systems."
You will not be required to pass the knowledge check questions to move on to the next lesson. These will not be counted as a grade, but each question gives you insight into what you should have learned and the sorts of things you'll need to remember moving forward.
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