what is the difference between RS 232,RS 485,RS 422, how they different from each other

15 Answers   TCS,

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How vortex sensor used for steam flow measurment can be checked on line i.e without taking out from process line.

0 Answers   Heisco,

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why we use 24 vdc in instruments mostly?

2 Answers  

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Q-Explain the different load conditions that will produced different offset which may or may not be acceptable to thhe control function

0 Answers   Reliance,

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why we are giving negative supply for vibration sensors?

3 Answers   Shell, Solex,

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What is Fieldbus?

3 Answers   NSL,

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Why in turbine used two critical speed band ?

1 Answers   Ankit Metal Power,

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what is corrective maintenance , explain with difination

1 Answers   Bapco Bahrain Petroleum Company,

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how can we calibate ph meter. how can we calibrat conductivimeter how can we calibrat massflowmeter & it s working.

1 Answers  

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what r all the closed loop used in boiler? for this related tell some web address..

3 Answers  

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can we use flow transmitter instead of level transmitter?

7 Answers  

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What is duty of as-built engineer.

2 Answers   Sofcon,

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