hw to calibration a control valve?

3 Answers  

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what is protonics how it is differ from electronics

1 Answers  

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what is function of vibration, and how is it work, explain with difination

1 Answers   Bapco Bahrain Petroleum Company,

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What is the working principle of sox, nox analyzer?(opacity monitor) Otherwise how to measure the sox,nox?

1 Answers   Thermax,

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can any one give me the cost price of yokogawa & rosemount transmitters

4 Answers  

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Draw a simple circuit for a well head control panel used to protect the well against fire, leak, blockage, ESD, & controls the operation of one downhole & one surface safety valve. Explain the operation and controls

0 Answers  

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we want to control pump in let pressure and tank (for exp) our inlet line if water cam and pump will on and when our tank will full pump will off also if our inlet pressure low pump will off even tank not full.this pump i want to uses on our water supply line.

0 Answers  

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what is the difference between AUTOMATION AND INSTRUMENTATION?

7 Answers  

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What is the SCAN time of a DCS/PLC? What is the typical value for scan time of DCS and PLC?

6 Answers   Essar, Gasco, Siemens,

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How to work mass flow meter ?

1 Answers  

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It is desired to reduce effect of 50Hz pick up in a thermocouple measurement. If a third order LP filter is used for this, what should be its cut off frequency, if gain should be 0.001 at 50Hz.

1 Answers   Honeywell,

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use of split range ? where it is used ? in which control loop it is used ?

0 Answers  

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