Automation System
What is offset error?

the difference between the sensor input and the absolute sensed parameter.
All of these
the difference between the controller output and the setting of the manipulated variable.
the difference between the control setpoint value and the actual value.
None of these

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Automation System
An aneroid barometer

measures pressure by sensing deflection of an evacuated chambers.
can be used to measure gas or liquid flow rates
can measure only atmospheric pressure
None of these
is very unreliable

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