First, let us understand the difference between grounding and earthing. Whenever the DCS or PLC systems are grounded, they still…
In this process, raw maple syrup is heated by steam to evaporate water and make it more concentrated. An analytical…
Since the outlet temperature of a heat exchanger can only change if there is an imbalance of inlet and outlet…
Since liquid level can only change in a vessel if there is an imbalance of inlet and outlet flow rates,…
PLC and DCS control systems Wiring Diagrams for Digital Input (DI), Digital Output (DO), Analog Input (AI), and Analog Output…
A variety of chemicals are added to raw water when treating it for human consumption, and also when treating water…
A byproduct of the kraft process used in the paper industry for turning wood chips into pulp is a liquid…
An operator tells you the stack temperature of this incinerator is running high as indicated by TIC-37. The setpoint is…
Suppose a chemical reactor is heated by steam. A temperature controller varies the amount of steam admitted to a “jacket”…
Explain how all valve positioners essentially act as cascade control systems in a loop, and why valve positioners generally improve…
