Answer / jayesh sangani

cavitation is inlet of valve pressure is low of vapor pressure
is called cavitation. damage the control valve and high noise produce. hard trim material used.

suppose there is gas flow meter I want to know weather meter calibration is done at high pressure or low pressure? pls justify.

2 Answers   Siemens,

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To find closed tank level by DP transmitter , how to findout its range.and insomeplace they using range like - 1500 to +1500 mmwc why not 0 to 3000 mmwc. how they spilit they range for minus and plus.and why?

1 Answers   Kuwait Oil Company,

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Positioner usage.

0 Answers   CCIE,

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what is the difference between active and passive loop ?

8 Answers  

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Which softwere is required to communicate the S7-300 processor

4 Answers  

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Can we use thermocouple in generator of power station replace RTD(pt 100)? if we don't have any place for use RTD.

2 Answers  

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what is zenier barier and what means zone 1,zone 2,and zone 3

2 Answers   Bapco Bahrain Petroleum Company,

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Im having problems with interfase betwen SPI v7.0 and SPPID v5.05. Previous versions of Intools shoul be fixed with SPPIDproj.ocx file. It was necessary to replace this file with one that allows the connection between different versions of SPPID. It is necessary in the current version to do the same?Thanks

0 Answers  

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why used three wire in RTD.

8 Answers   BARC,

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How do you identify between actual alarm and false alarm in a Temperature Transmitter in SCADA based Control System

0 Answers  

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give me the formula for analog to digital converter and also d to a converter

0 Answers   ACC,

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hello can yoy pls send me previous papers of jindalpower and steel ltd.....'m from instrumentation..... mani1048@gmail.com

0 Answers  

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