Answer / faiyaz

Micron

how we can calibrate level transmiiter in field?

6 Answers  

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what happens when the profibus fails while in operation (operation of a valve)?

5 Answers   L&T,

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In 2 wire transmitter 1 wire is used for power and other is used for signal( 4-20)ma In 4 wire transmitter 2 wires are used for power and 2 wires are used for signal (4-20)ma . but my question is "what is the criteria or parameters we have to consider while selecting these transmitters for eg( distance, safety zones etc.

1 Answers  

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for oil & gas industries which zone is normally preferred? why? give its example?

0 Answers  

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how to calculate temp.prapotional to mv in thermocoulpe.

2 Answers   Electronics, KNPC,

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How to calibrate a temperature transmitter & how a Cold junction Compensation will be carried out?

2 Answers   QAFCO,

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what is the reset offset and control system in instrumentation

0 Answers   ABB,

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In control valve there are two type of valve seat we can use metal to metal seat & soft seat.On this valve seat i have following doubt. 1)I have never seen practically the internal assembly of valve so my doubt is that basically weather the seat is soft seat or metal its basic MOC is same as valve body(SS or CS) only in soft seat we are using PTFE ring & place on valve seat & in metal this PTFE ring is not threr am i correct??????? 2)what are the common general rule for using metal to metal seat & soft seat,means its depend on process parameter like liquid,gas, steam & on valve leakage class.

1 Answers  

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why we are using negative range like -750 to 0 mmwc in closed tank?and what is the reason can you explain clear?

2 Answers   Aarvi Encon,

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how to calculate flow by dp transmitter?

4 Answers  

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what is the function of boiler in plant?

2 Answers   Maden,

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

0 Answers   Takreer,

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