Proportional Controller Principle
If the outflow (Qo) increases then the level in the tank will fall. The pressure sensed by the level transmitter, which is representative of the level in the tank, will also fall...
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Why Offset in Proportional Controller ?
Proportional controller: With proportional band, the controller output changes in “proportion” to the error between process variable and set point. The amplitude of the change is adjustable from 1% to...