# I&C Concepts

 The flashcards below were created by user ereim on FreezingBlue Flashcards. The degree to which the output of an instrument approaches an accepted standard or true value. Accuracy Increases the process signal to a usable magnitude Amplifier Senses the parameter being monitored and converts the magnitude of the parameter to a mechanical, electrical, or pneumatic signal. Detector A range in which the zero value of the measured variable is greater than the lower range value. Elevated-zero range The term used to describe the quantity, the property, or the condition that is measured. Measured variable The region between the limits within which a quantity is measured Range A number or quantity that defines the limits that errors will not exceed when the device is used under referenced conditions. Reference accuracy The algebraic difference between the upper and lower range values. Span A range in which the zero value of the measured variable is less than the lower range value. Suppressed zero range Converts the output signal of the detector to a signal that can be used easily. (If the detector signal can be used directly, this “conversion” step is not needed.) Transducer Transmits data from one instrument component to another when the components are physically separated. Transmitter DESCRIBE the two basic types of measurement Physical conditions, chemical properties and the quantity of a substance can be monitored by either direct or indirect measurements DRAW and LABEL a block diagram of a basic instrument channel DEFINE the following terms: a. Range b. Span c. Elevated Zero d. Suppressed Zero e. Accuracy Range is the extremes of the quantity being measured.Span is the difference between the upper and lower ranges.Suppressed Zero is when the range of an instrument is above zero.Elevated Zero is when the range of an instrument is below zero.Accuracy is how close the output is to the true value or accepted standard. Range -100 to -20Lower Range Value -100Upper Range Value -20Span 80 Basic Instrument Channel Authorereim ID31196 Card SetI&C Concepts DescriptionCH 1 Concepts Updated2010-08-31T18:04:23Z Show Answers