If the Barrier Fails during online then What will be the control valve position in field or Positioner action in the field.

3 Answers  

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Drum level tx with GP4 with zero elevation:7300mmh20 on HP and 8050mmh2o on LP as range but on commissioning the tx readiing is max,Why this reading?

0 Answers  

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what happen if i install my pressure transmitter below the elevation of pipe in natural gas service. Also support your answer

3 Answers   C2C,

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how to make temperature closed loop

1 Answers  

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What is Positive Calibration and Negative Calibration?

0 Answers   SA Kent,

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please give me combustion cntrl interlock details? if possidle drawing also?for this one is there any website ?

1 Answers  

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list of flame proof certification ?

1 Answers   TATA,

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how to design orifice plate?what is the equation?

0 Answers   REL,

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units of pressure,flow, level,temperature? principle of pressure gauge? calibration of pressure tx., level tx., temperature tx.flow tx.? description of two wire ,three wire and four wire R.T.D.? WHAT IS INPUT AND OUTPUT OF TX.? WHAT IS INPUT AND OUTPUT OF R.T.D. AND THERMOCOUPLE? WHAT IS HOT LOOP AND COLD LOOP? WHAT IS INPUT AND OUT PUT AND OUTPUT OF D.C.S. AND P.L.C.? PRINCIPLE AND WORKING OF HART? WHAT IS PNP AND NPN PROXY? CALIBRATION OF PRESSURE ,LEVEL ,FLOW SWITCH? DESCRIPTION OF FIELDBUS FOUNDATION? WORKING OF SOV.?

2 Answers  

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what is LAS in foundation fieldbus protocol?

1 Answers  

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calculate the rane of level use of this values, h=3 meter density=0.9 , whats the rang?

2 Answers  

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The DCS has the following signal type:

3 Answers  

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