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FITZ
Member

Join Date: Oct 2008
Posts: 7

Level transmitters

10/25/2008 12:15 AM

Would like information on the calibration of a magnetrol level transmitter

following info

model xese kq7b es9

used for interface control.Range 813 mm of displacer chamber

upper fluid sg .767 lower fluid.938

I was going to calibrate it doing 813mm x .767sg for 4 ma LRV and 813mm x .938 for 20 ma for URV using water as the calibration medium.There is also a setting in the hart communicator for SG.It is presently set to 1 but it can be changed.Any ideas on this?Also any comments good or bad on this specific instrument.

Many thanks
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wrenchpuller
Commentator

Join Date: Dec 2007
Location: texas
Posts: 92
Good Answers: 8
#1

Re: Level transmitters

10/25/2008 1:10 AM

<>Hi,Fitz the calibration formulas you described are right.The way we do it where I work right or wrong, fill the chamber with the upper fluid and if the output of the transmitter is not zero % (4mA) zero it with your communicator, next fill the chamber with the lower fluid to make sure the output is 100 %(20mA).To me using the process fluids to calibrate the transmitter is a very reliable method.This is my OPINION only I am sure like in my past answers somebody will criticize me in a negative way so I want to make sure that you know that this answer is ONLY my opinion and may not be the best nor I claim to be the best answer it is just the way we do it in the oil refinery where I work.. Thank you

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FITZ
Member

Join Date: Oct 2008
Posts: 7
#2
In reply to #1

Re: Level transmitters

10/25/2008 11:05 PM

Thanks for the information
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