please send the hpcl (instrumentation) model placement papers to my mail....

9 Answers   HPCL, Invensys, IOCL, ONGC,

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what is Least Value of MICROMETER?

3 Answers  

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why 4-20 mA in covection system?

3 Answers  

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when we calibrate the DP transmitter at that time which matrial we used in pressure pump?

4 Answers  

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where we are used split range control

1 Answers   Borouge,

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Explain ratio control system.

1 Answers  

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Why we are using sqare root in flow?

4 Answers  

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Can SmartPlant Instrumentation be used in a concurrent engineering environment?

1 Answers  

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what is the meaning if the control valve CV is 27,in terms of selecting procedure?

2 Answers  

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What is scale factor of proximitor & unit of the viabration.

2 Answers   Sabic,

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generally transmitter power supply having some range(12v to 35v) but the out put(4-20 mA) must same for given input.If we vary the power supply voltage then output mA also to be change according to V=IR. Is there any voltage regulator in the transmitter ?

1 Answers  

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how to calibrate absolute pressure transmitter

7 Answers   ABB,

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