what is vfd(variable frequency drive)?type of vfd.

2 Answers  

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we re giviang 24v supply to transmitter and we getting output from tx?now my question is wht we call this complete proces?

2 Answers  

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Control valve question what is the meaning of cauge.?what is the use of cauge?

1 Answers  

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what is the principale of vortex flow meter.

7 Answers   Ambuja, India Glycols,

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how we will install a positioner ?

2 Answers   Descon,

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why twisted pair of wires is used in instrumentation ?

6 Answers   ONGC,

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Explain PID controller tuning & any one method used for it.

1 Answers   L&T, Oil India,

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what is written on orifice plate?

4 Answers  

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WHICH INSTRUMENT USED TO CALIBRATE CONTROL VALVE?

8 Answers  

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what is thermopile?

1 Answers   HNG,

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Thermocouples work as follow:

1 Answers   Dashen Brewery, Tata Power,

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please tell me how maintainence person shifted to good epc company/design company

0 Answers  

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