Previous in Forum: Guage   Next in Forum: Progressive Casecade Split Range Valve Sequence
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
5 comments
Rate Comments: Nested
A Saleem
Active Contributor

Join Date: Oct 2010
Posts: 16

Transmitter Calibration

04/16/2011 2:44 PM

in a pressure transmitter ,range is 0 to 25 bar, if I getting the 7 ma in series connection how I can calculate the pressure. Pls explain to me with example .
Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
lyn
Guru

Join Date: Oct 2008
Posts: 42355
Good Answers: 1693
#1

Re: transmitter calibration

04/16/2011 2:52 PM

0-25 bar=4-20mA.

0bar=4mA: 25 Bar=20 mA.

No examples.
Register to Reply
Anonymous Poster #1
#2
In reply to #1

Re: transmitter calibration

04/16/2011 10:57 PM

Hi,

If you are working in calibration workshop, you may ask you superior/co worker they will help you more.

If this is homework then do research.

0~25 Bar = 4~20mA = 0~100%

0bar=4mA=0% : 25bar=20mA=100%
Register to Reply
Phaddy
Power-User

Join Date: Jun 2010
Posts: 344
Good Answers: 17
#3

Re: transmitter calibration

04/17/2011 4:48 AM

The relevant equation is y = mx +c, where m (bars per ma) and c are constants, x is ma and y is bars, y goes from 0 to 25, and x goes from 5 to 20. Now back to your coordinate geometry textbook.
Register to Reply
Grand Poobah
Power-User

Join Date: Oct 2010
Location: OZ, otherwise known as Oklahoma were the wind comes sweeping down the plains.
Posts: 159
Good Answers: 4
#4

Re: Transmitter Calibration

04/18/2011 3:19 PM

25/16*(7-4)=4.6875
Register to Reply
blu pye
Participant

Join Date: Apr 2011
Posts: 1
#5

Re: Transmitter Calibration

04/19/2011 8:43 AM

good formula for ya

Amount = %span + lower

7=%(16) + 4

3/16 = 18.8%

now to find out pressure at this current

Amount = 18.8%(25) + lower

Amount = 4.69 bar at 7ma
Register to Reply
Register to Reply
Have a Different Question?
5 comments
Copy to Clipboard

Users who posted comments:

Anonymous Poster (1); blu pye (1); Grand Poobah (1); lyn (1); Phaddy (1)

Previous in Forum: Guage   Next in Forum: Progressive Casecade Split Range Valve Sequence

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Instrumentation:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (73 right now)
Show Members
Advertisement