Answer / sushil jambhulkar

IN OPEN LOOP INPUT & OUTPUT ARE INDEPENDENT.
IN CLOSE LOOP INPUT IS DEPEND UPON OUTPUT.

Answer / veera

*open loop for monitoring purpose, there is no control action taken place.
*closed loop for both monitoring and control purpose.

Answer / guest

close loop consist of final control element..example:contol
valve
open loop does not consist of final control element..
example: motor

What is the use of the shield wire and how is the connection at both the ends of a shield wire?

2 Answers   Samsung,

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what is thermopile?

1 Answers   HNG,

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the 3 most common transmitter protocol being in refinery or qatar gas and aramco.

0 Answers   Shell,

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How does your previous experience relate to the job you are applying for ?

0 Answers  

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how can i calibrate a smart temperature transmitter used by druck 720 process calibrator?

0 Answers   Texas,

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Why DP level transmitter preferred for closed vessels and Radar level transmitter for open tanks??

2 Answers  

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How to measure the vibration..?

1 Answers   Madhucon,

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Can we measure pressure using differential pressure transmitter? If yes then how?

5 Answers   Reliance,

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how pressure transmitter work, what is its principal to measure and how its generate signal. for pressure transmitterinstallation which precautions must be taken ??

0 Answers  

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What is Cavitation?

2 Answers   Gujarat Borosil,

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what is datum line?

4 Answers  

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Why Instrumentation Air Compressor called as Instrumentation Air compressor?pls dont just tell its trasferring IA to all transmitter,valves.I need exact reason, please......................

2 Answers  

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