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 interlock system and why we use of this?

1 Answers  

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While giving Power Supply of 24 VDC to a Transmitter,why Shield Terminal is connected either at Transmitter or at ISB.Why not Shield Terminal connected at both ends.If the Reason is to avoid Noise interference,which type of noice that is interfering.Is the Noice from the 24 VDC supply terminals or from any external source.

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Is SmartPlant Instrumentation taking advantage of the quality assurance procedures within Intergraph?

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IF I WANT TO BUY A THERMOCOUPLE THEN WITCH PARAMETER I LOOK

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how can calibrate transmitter online

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Explain the usage of the PLC system?

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1 Answers  

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Q- What are the application in which PNP transistor is preferred over NPN ?

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Functions of electropneumatic valve positioner:

4 Answers  

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Whatis the reset ofset and control system in instrumentation

1 Answers   Asyad International Company, CAE, Sugar Factory,

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1 Answers   Jubilant,

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