What are the different types of temperature sensors and the principle they work on?

1 Answers   GAIL,

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what r all the closed loop used in boiler? for this related tell some web address..

3 Answers  

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this site is owned by an nonsense

0 Answers   Bhel, Prolific,

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why OPC server is used in DCS?

2 Answers  

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If a control valve is hunting means means if we are giving 50% to the cv, the cv will open at 51% then slowly slwoly it will reaches 49% , so what to do for solve this problem. The cv is double acting and mounted for anti surge operation, it having 4 nos. volume booster, one sov, one positioner, etc..?

0 Answers   QAFCO,

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Please explain the difference between instrument range and calibration range in terms of pressure transmitter? line design pressure: 93 bar operating pressure : 82 bar press Transmitter Range? calibration range ?

3 Answers   L&T,

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Explain , how timer based pneumatic control valve will work ?

1 Answers  

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Wht is Dry Leg Calibration and Wet Leg Calibration?

2 Answers  

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1.In which princeple DP transmeter works? 2.Why UPS system is use for DCS? 3.How drum lvel controller works? 4.What is the difference between glob valve and gate valve? 5.How axial shift probe work & in which princeple it works?

1 Answers   Luberef, Qatar Gas, Reliance,

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What are the error values can accepted in flow transmitter calibration?could u give any formula for this?

0 Answers   Hamsco,

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How much voltage we are using at switches?

4 Answers   Edac,

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what is the analog input , analog output , digital output, digital input geven to the MSSV , CBD, IBD , START UP VENT , BOILER FEED PUMP , AOP, CEP , ETC

1 Answers   Bharat Biotech, TATA,

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