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Anonymous Poster

Dp type Steam drum level transmitter

01/10/2009 5:27 AM

why we select nigative range of callibration in DP type level transmitter used for steam drum level.
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Anonymous Poster
#1

Re: Dp type Steam drum level transmitter

01/10/2009 11:19 AM

Because the low pressure side of DP Tx has wet leg, when it is used for steam drum level.
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find2am
Commentator
India - Member - ADIL MOULA Engineering Fields - Instrumentation Engineering - Adil Moula

Join Date: Jun 2008
Location: India
Posts: 95
Good Answers: 1
#2

Re: Dp type Steam drum level transmitter

01/10/2009 1:29 PM

because the steam condensate will always fill the LP leg and when LP side goes hi dp transmitter goes negative, in order to remove this erratic reading .We always first fill with condensate on LP side and adjust zero supression and bring the signal to zero this is the LRV of the smart Xmtr and by giving pressure to HP side to the given height or span is the URV of the smart Xmtr .

hope you get the proper answer
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SSS1104
Participant

Join Date: Jan 2010
Posts: 4
#3
In reply to #2

Re: Dp type Steam drum level transmitter

01/18/2010 11:16 AM

I HAVE A CASE TO MEASURE LEVEL IN FORM OF DIFFERENTIAL PRESSURE

LEVEL TO BE MEASURE IS LOW 437 mm & HIGH 1190

FLUID IS WATER

WHAT SHOULD BE THE RANGE OF TRANSMITTER I SHOULD GO FOR?

i AM ASKED TO SELECT A ROSEMOUNT DP3051 MODEL

VESSEL OVERALL HEIGHT IS 1400
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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#4
In reply to #3

Re: Dp type Steam drum level transmitter

07/01/2024 7:24 AM

Absolutely fine. If that can take place WITHOUT SHOUTING then readers here trying to get some sleep will not be disturbed.

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Anonymous Poster (1); find2am (1); PWSlack (1); SSS1104 (1)

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