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Emerson and H+E in serie but the measures are different

Hello I have two coriolis meters one E+H and the other emerson, they are in serie, the first one installed was the E+H but our customer to be sure about the measures asked to put an the emerson one, the problem is that there is a difference in the output, the E+H measures 30,000 BPD while the Emerson One give 29, 300. Could anyone tell why this such difference? Or any clue?

Roy Integradores

• 14 Apr 2015 6:21 PM
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3 Replies

• Robert Ferris

  

  • 14 Apr 2015 7:34 PM

  Hello Roy,
  
  There are a lot of secondary effects that Micro Motion meters correct for to improve the measurement accuracy. This may be why your customer requested a MMI meter installation.
  To help you with your particular question: What are the two meter model numbers and the installation environment?
  Thank you,
  
  Robert Ferris, Ph.D.

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• Anonymous

  

  • 14 Apr 2015 9:45 PM

  Hello Roy ,
  I agree with Robert , we should know both model numbers and installation conditions to completely judge , but generally you can expect this difference or more , basically E+H meters are less accurate when measuring density , hence this gets worse when converting to volume , so this is expected. Anyways I'm curios to know, is this error repeatable or not? may be if you can provide more data we can help you better.
  I. Abdelaal, MSc

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• Niklas Flykt

  

  • 15 Apr 2015 6:10 AM

  Hi,

  did you calibrate the flow?

  You could test to see witch meter is better [;)]

  Niklas Flykt 

  Klinkmann Oy
  

  Key Account Manager safety products

  [email protected]

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