What means zero and span in transmitter callibration.
Answer Posted / dhanavel prakash
For transmitter
1)4MA value is Low range value(ie zero percentage)
2)20MA value is upper range value(ie 100 percentage)
3)but span means the difference between the LRV and URV
Example for span
if the range 0 to 100 the span is 100 and the zero value =0.
if the range -100 to 100 the span is 200 and the zero value=-100.
if ok press yes not ok press no
Is This Answer Correct ? | 93 Yes | 14 No |
Post New Answer View All Answers
Can any body tell me about SAP MAINTINANCE MODULE. WHAT IS its function and application. And study material Source about it. I shall be very thankful.
What is the difference between conductive lined pipe and conductive unlined pipe? Why do we see that?
How d.p. Transmitter can be applied to close tank?
How will you calibrate an Absolute Pr.Transmitter of range 400mmHg absolute ?
draw shematic diagram of c/v positioner(smart type)?
What is the use of temprature compensation?
sir,would you please send me the Hindustan petroleum corporation limited papers(HPCL).my e-mail ID is ujjwal_sharma1983@yahoo.com
Sir,I am going to sit for IOCL written test exam. recently.Can anyone tell me the name of 'Objective type Question Book on Instrumentation Engineering ' which will help me. Pl. mail to bidyut_71@rediffmail.com / bidyut.saha2008@indiatimes.com / bidyut.saha09@yahoo.in
Pressure tx shows 1 mbar but we need 1000 mbar at this process condition .. how can we sort it out .
How does a single acting, spring return ball valve actually work? Does it require continuous air supply?
Why grounding is necessary? Give example with diagram.
How to Calibrate Level Troll in field
Do you have reference list?
What are primary elements of measuring pressure? Which type of pressure can be measured by these elements?
How to Calibrate Ultrasonic Level Transmitter in field