Explain about 4 wire instrument concept & tell about its wiring fron sensor in Field to PLC panel.Explain with an example?

3 Answers   IOCL,

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i want to measure temp of hot sand(welding flux) in closed chamber(around 150 deg C).Which is better thermocouple or thermometer?

1 Answers  

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How earthing can be checked????

0 Answers  

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What is the role of Integral in pid control?

6 Answers  

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temptrure me ketne frequiency hote hai

0 Answers   ME,

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Make Heater Process Logic.

0 Answers  

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What is the maximum distance limit of 4-20mA and 0-10V DC standard signal transmission ?

3 Answers   BARC, ME,

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can u briefly explain aboutan aryton shunt multirange DC ammeter?

0 Answers  

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What is the procedure of calibration of Load cell?

0 Answers  

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I want to know the questions asked in ONGC interview(after being selected in the written exam) for Instrumentation branch.Kindly help.

0 Answers  

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what is droop in governer ,type of droop ,how it work

0 Answers   TATA,

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why 4 to 20 ma? why cant some other range?

3 Answers  

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