Answer / manomallik11

positioner sets the controlvalve stem % open or % close as per command and the position transmitter sends the feedback of % open or % close in control valve to the dcs

Answer / faiyaz ahmad

Positioner is device which is used to given the position of the control valve 25% 50% 75% 100% and Transmitter is send the feed back signal to the DCS.

what is isolation Transformer???...

3 Answers   Emerson,

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1 Answers  

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what is meaning of software redundency and hardware redundency?

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tell how to calibrate a magnetic flow tx, vortex flow tx,dp flow tx,nozzle flow tx and venturi flow tx?

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any body who gone thru recent iocl interview.INSTRUMENTATION questions. I need.

0 Answers   IOCL,

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a pressure transmitter with a range of 0 to 2500kpag has a specified accuracy of 0.5 % of span.It is to be calibrated using a comparison gauge to have an accuracy of 0.1% of span.The comparison gauge has a range of 0 to 3000kpag What is the accuracy ratio? is this ratio acceptable?

2 Answers  

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