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Question
What is "Hunting" and "Overshooting"?
Answer
ON/OFF control action often involves the waveform shown in the following diagram. A temperature rise that exceeds the set point after temperature control starts is called overshooting. Temperature oscillation near the set point is called hunting. Improved temperature control is to be expected if the degree of overshooting and hunting are low.
Hunting and Overshooting in ON/OFF Control Action
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