What is the logic a Transmitter control a Control Valve? How the signal going to the Control valve? What are systems/Panels/cables/signal used to control valve from Transmitter?

3 Answers  

---

Sir i am preparing for PSU exam for ONGC but i am not able to get the appropriate syllabus and previous year question papers. Kindly send me the same, that will be a great help from ur side. OR if anyone can plz send me the papers and syllabus please.

11 Answers   Bhel, GAIL, IOCL, ISRO, NTPC, ONGC,

---

what is maximum temprature in instrumentation

1 Answers   Sabic,

---

what will be the principle & application of dissoled oxygen analyzer at wast water treatment plant at oxidation basin & how it work?

1 Answers  

---

How to consider the flow directions for control valve (Globe) Is the there any easy understanding in order to select the flow directions?

3 Answers  

---

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

3 Answers   C2C,

---

WHAT IS ANNUBAR?

7 Answers  

---

Hi Friends i need Electronics&Instrumentation Engg question papers for BARC written test by coming 20th May 2008 pls post ur use full info to kkumarei@gmail.com. Or for suggestions pls give one missed call to 9962122264

0 Answers   BARC, Wipro,

---

What is Difference between Bench Set & Operating Range of Control Valve?

1 Answers   AB Sugar,

---

when the instrument tapping on pipe line is located below and transmitter is located above the tapping point for liquid service transmitter, what should we do, is there any additional drain valve is required??

2 Answers  

---

Can any body help me,The GE Mark V control system is windows based or Dos based?

3 Answers  

---

how can I install "operating system " in may HART communicator? It is damaged, and it doesn't boot up.

1 Answers   ARPC,

---