how ranges is decided for drum level or dearator level,in my pplant i have seen for boiler drum range is -1000 to 1000mmwc, while for dearator -2000 to 0 mmwc ,why they decided to take this range ?

2 Answers  

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what is see back effect?

9 Answers  

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what is reset windup in integral control?

6 Answers   Honeywell,

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in valve is constructed as per SME B 16.34, then which standard is used for fire testing of valve?.

0 Answers  

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control valve in manual/auto mode huntting checked spring tention also it is ok.positioner also good condition & incoming inst air line also constant pr.kindly give us correct answer?

5 Answers   Madhu Power,

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What is mean by analytical instrumentation?

0 Answers  

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what is stroke check for field instument transmetter's & AOV's

0 Answers  

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Identify the electrical variable that is either directly or inferentially used by various instruments to determine the value of a measured variable.

4 Answers  

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hii my name is sujith...i am preparing for HPVL GET 2010... so ,,,pls help me by send any previous questions or material to my site.....(Msujith_12@in.com) thank q

0 Answers  

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How to Calibrate Temperature Switch in field

0 Answers  

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why the output sugnal is 4-20 ma and not 4-25 ma?

5 Answers  

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when the instrument tapping on pipe line is located below and transmitter is located above the tapping point for liquid service transmitter, what should we do, is there any additional drain valve is required??

0 Answers  

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