without a positionar can a control valve operate? give the difference of operating with positionar and without positionar?

5 Answers   IOCL,

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what are the inputs (drawings) we need to prepare loop schematics??

1 Answers  

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how to make a calliberation for deffirential pressure

3 Answers  

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How does work A temperature valve or fv control valve in process plz brief me

0 Answers   Jindal,

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A DP transmitter is used to measure the level of an open tank. The drain line of the tank is connected to a control valve, and is configured as, if the level of the tank is 90% the valve should get open 10%. And if the tank level is 10%, the valve should get open 90%. Draw wiring diagram and explain how to configure DP transmitter and control valve using HART communicator. If the span error at output is 1%, what will be the %opening of the control valve at 60% level of the tank?

0 Answers  

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i want interview questions about PROCESS CONTROL INSTRUMENTATION , SENSORS AND TRANSDUCERS IF ANY BADY KNOW ABOUT THAT PLEASE SEND TO MY MAIL karumudi1003@gmail.com

8 Answers   Honeywell, Reliance,

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i need some objective type questions in instrumentation

0 Answers  

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What are the cable come out from the paddle type flow sensor.and how is further connections

1 Answers  

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what is full form of NAK?

1 Answers  

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what is HVAC?

1 Answers  

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what is the input to be given digital temp controller during the the calibration time?

2 Answers  

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how to wire from pressure transmitter to marshalling panel and panel to controller and controller to dcs plz give the answer with example .

2 Answers  

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