Quiz 11

I/P transducers are commonly used in the process industry with _____ actuated valves.

Pneumatically

Calculate the span with an HRV of 150 psig and an LRV of 25 psig.

125

What output would a transmitter produce at 75% of scale?

16 mA

In order to increase production rate, a reactor set point was increased from 160 psig to 190 psig. The reactor pressure transmitter was recalibrated from 0-200 psig to 0-300 psig. What is the percent span for the new set points?

63%

The most common electronic instrument signal used in process industries is expressed in _____.

milliamps

In a standard I/P transducer, an 8 mA input corresponds to _____ of output?

6 psig

The primary role of a sensor in a control loop is to _____ the process variable.

detect

What is the term used to describe the condition where the zero value of a standard instrument signal is greater than true zero?

live zero

The D/P cell transmitter converts a process variable measurement into a standard instrument _____.

signal

In a process with a transmitter range of 0 - 1000 GPM, a flow of 150 GPM corresponds to what transmitter signal in mA

6.4

In a process with a transmitter range of 200-800 DegF, a 18 mA signal corresponds to what temperature in DegF

725

A differential pressure transmitter can be used to measure differential pressure as well as _____. (Select all that apply.)A) rhythmB) densityC) pressureD) flow rateE) temperature

B, C, D