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ebby
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Join Date: Jun 2014
Posts: 1

Doubt - Transmitter

06/17/2014 12:10 PM

I got transmitter to change the lrv and urv lrv to set 0 inh20 and urv to set 66.8inh20 and iset with rosemount field communicator and I got 0 inh20 4ma and 66.8inh20 20ma in between readings is not linear and I applied pressure 4.20inh20 I got 8ma and applied 25% igot the op is 50% and I appled 50% igot 70% what is the calculation of in betwwen 4-20ma
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Anonymous Poster #1
#1

Re: Doubt - Transmitter

06/17/2014 4:11 PM

I got hdch frm rdg ur pst. I will take 2 aspn and call dr in mng.
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bigg
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Join Date: Jun 2010
Posts: 1296
Good Answers: 104
#2

Re: Doubt - Transmitter

06/17/2014 4:13 PM

Sounds like you have the transmitter set to square root mode. What make and model are you working with?
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Iris
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Join Date: Jul 2010
Posts: 669
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#3

Re: Doubt - Transmitter

06/17/2014 11:58 PM

GA Mr. Bigg.

The function is termed transfer function or output (characterization). Depends on brand and model.
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Vulcan
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Philippines - Member - New Member Engineering Fields - Instrumentation Engineering - New Member Engineering Fields - Control Engineering - Who am I?

Join Date: Oct 2006
Location: Northern Mindanao, Philippines
Posts: 2147
Good Answers: 53
#4

Re: Doubt - Transmitter

08/27/2014 9:45 AM

I'm feeling kind today. Here's a graph of a square root function for your particular transmitter along with the formula. Enjoy.

regards,

Vulcan

__________________
 Miscommunication: when what people heard you say differs from what you said. Make yourself understood.
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