List the instruments found in the processing industry.
What will be an ideal response?
There are hundreds of instruments used by the chemical processing industry. These are primarily used to illuminate the following variables; pressure, temperature, flow, level, and analytical variables. The basic instruments in a control loop include:
a. primary elements or sensors
b. transmitter
c. controller (DCS, PLC, or older style controller)
d. transducer
e. final control element
f. recorders
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What will be an ideal response?