How to calibration a control valve?

0 Answers  

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What are the interlocks we have to check during the start up of LP/HP compressor?

0 Answers   Hamsco,

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If fire would be inside the plant which fire detector is to detected the fire.

0 Answers   KOC,

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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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wht is Zero Elevation and Zero Suppression?

12 Answers  

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what are the use of belew gear in general ??

0 Answers  

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How do you measure g's?

5 Answers   Aramco, GNFC, HPCL, Polmon, Thermax,

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Related to control system, What is difference between 4-20 mA active & 4-20 mA pasive signal.

1 Answers  

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If an Instrument has 550 ohm internal resistance and the cable used for that instrument is 0.5 ohm per meter resistance. If the voltage is 12volt.How much length cable can be used? Please tell me its Calculation formula.

5 Answers   MOL,

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what is the difference b/w wet leg & dry leg level method

2 Answers  

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Why using negative voltage in vibration measurement?

2 Answers  

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Instrumentation Safe Guarding test. How to determine the interval time of the test. eg:Halfyearly,Every year,Every three years etc.

0 Answers  

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