why we use negative 24vdc to a proximeter

4 Answers   KNPC,

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i have 20 kw motor & my vfd drive capcity is 18 kw if possible to use 20kw motor on this vfd?

4 Answers  

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generally for transmitter we are giving supply 24vlts?but we are getting output 4-20ma ? how it is possible? is there any operation inside the tx?pls give complete information?

3 Answers  

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what is dry leg and wet leg in transmeter calibration?

3 Answers  

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how to overhaul control valves.what are the proper procedures.

1 Answers   Jindal, QAFCO,

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what is the criteria to decide conductor size of a cable ?

0 Answers  

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What do you do as a Engineering person EPC for Sizing&Selecting Control Valve?

1 Answers  

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There is a problem with our HART475 it is not communicating with smart devices error becomes "NO DEVICE FOUND"we have insert 250ohm resistance as per requirement but invain plz tell me the solution?

1 Answers  

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What is the difference between relative vibration

4 Answers   Desein,

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what should be minimum length and size of impulse line for steam flow orifice and feed water orifice? asked by sanjay parihar

1 Answers   Birla,

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Explain bernoulli’s theorem.

0 Answers  

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on which principle control valve works?

3 Answers   Lupin, Reliance,

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