George Buckbee presented an interesting discussion on some frequently quoted myths:
The Myths
"¢ Myth 1: Tuning is Everything
"¢ Myth 2: Averages are More Important Than Dynamics
"¢ Myth 3: There Isn't Time to Look at Everything
"¢ Myth 4: Each Unit Operation is an Island
"¢ Myth 5: Analog Instruments Can't Deliver Diagnostics
"¢ Myth 6: You Can't Show the Value in Dollars and Cents
Myth 1 debunked:
"¢ Tuning is One Piece of the Puzzle
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"¢ Equipment
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"¢ Operations
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"¢ Loop
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"¢ Identify the Problems
"¢ Software Tools
"¢ Focus Your Efforts
Causes of Inefficiency
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"¢ Process Upsets
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"¢ Controls
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"¢ Tuning
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"¢ Loop Interaction
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"¢ Equipment
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"¢ Valve Stiction
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"¢ Operator Response
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"¢ Overload, Confusion
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"¢ Right Information not Available
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"¢ Setpoint Not at Optimum
George went methodically through each myth, debunking them.
