Answer / v.poornachandran

A distributed control system is computerized control system for a process or plant usually with a large number of loops,in which autonomous controllers are distributed throughout the system

How to work DCS? how to get the signal from Field Instruemtns to PIB to Console?

2 Answers   Alstom, Invensys,

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In turbine what does term CDP, NI, NH, HSSOC means.

0 Answers   ADMA OPCO,

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IS IT POSSIBLE TO CALIBRATE A LEVEL TRANSMITTER INDICATOR(ABB) USING HART COMMUNICATOR.? I MEAN TO CHANGE FROM ONE UNIT TO ANOTHER WITHIN INDICATOR (EG. INCH TO FEET)...? PLZ NOTE THAT I HAVE MADE THE UNIT CHANGE IN TRANSMITTER USING HART COMMUNICATOR..BUT WHAT ABOUT THE INDICATOR..?

2 Answers  

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What happens if the Displacer has fallen or has a hole in it?

1 Answers   CCIE,

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defination of plc

14 Answers   ABC, Sofcon,

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Draw a P& ID showing – orifice flange, plate, dp transmitter, isolation & bypass valves and tubing.

0 Answers   CCIE,

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What is mean by trim?

5 Answers  

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What is two wire system and how it work

2 Answers   Bhel, IFFCO,

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How to work temperature gauge?

0 Answers   KJS,

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what are the following documents comes under loopchecking

1 Answers   Heisco,

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How much voltage we get between two wire of 4 to 20 ma output? Is this voltage up or down respectvice to 4 - 20 ma ?

9 Answers  

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I am applied 100 % pressure on to the air to open control valve,but the valve is not fully closed..and 10-15% is open the valve. how to calibrate the control valve?

3 Answers   OPaL,

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