Instrumentation - Definitions

Process Control

A system that combines measuring and controlling into an arrangement capable of automatic remote control

Variable

Variable

Any Instrumentation Device

• Primary Element

• Control Element

• Final Element

Closed loop system

Full Scale

Accuracy - How close measured is to actual

Calibration - The Process of configuring an instrument to certify that is meets performance requirements

Primary Element: The smallest change that the Primary Element can detect

Primary Element

• The change is less then the sensitivity of the element

DeadBand

Control Element - the change of measurement is less then the Controllers ability to control

The ability of a measurement device to maintain correct display in spite of external influences