An instrument loop that has no feedback and that cannot provide continuous.. adjustments to a process.

A control loop in which the controller receives continuous feedback.

The element in a control loop that detects changes in a process variable by direct contact with the process.

An instrument that converts one type of signal to a different type. A transducer is used to change electrical instrument signals to pneumatic signals.

An instrument that sends a measurement signal to other instruments on the control panel.

A recording instrument that uses an ink pen to keep a record of a process variable.

The instrument in a control loop that compares a process measurement to a desired set point and sends a corresponding correction signal.

-------------------------------- is a part final control device that causes a physical change in the final control device when signaled to do so.

----------------------the last link in the modern control loop and is the device that actually makes the change in the process.

The process variable that is held at set point by a control loop.

The desired measurement setting for a process variable.

Information that is returned to a loop controller to show the results of its corrective actions.

-----------is designed to prevent an error from occurring in the first place by changing the position of the final control element before the measured variable

Reacting in an opposite direction to an input signal. A reverse acting controller decreases its output signal when its input signal increases above set point.

To adjust or change. A control valve manipulates one process variable to keep the controlled variable on set point.

A 4-20 mA to 3-15 psi current to pneumatic (I/P) converter has 10 mA applied to its input. What should its output be in psi?