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.

can we replace a slot sensor (inductive type) with limit switch (potenial free contact / no-nc type).

0 Answers   Max India,

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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.

1 Answers  

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I want to install analog type, flange mounted gas flow meter (line size - 2"), for CNG flow measurement.Kindly give some details of flowmeter or suppler name, available in India.

1 Answers  

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Working principle capacitance type level transmitter

3 Answers  

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what is the use of glycol filling in seal pot (or) condensate pot in instrument impluse line?

7 Answers  

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WHAT IS THE DIFFERENCE B/W PLC and DCS

10 Answers   Bhel,

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Define all the process Variable and state their unit of measurement. ?

0 Answers  

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How to rerange a dp type level transmitter after installation?

1 Answers   NSH,

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What is principle of ultrasonic level transmitter?

3 Answers  

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can we use a control valve without positioner

19 Answers  

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What is difference between ESD and PLC please Explain me clearly.

0 Answers  

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what is commissioning & pre commissioning , explain with difination

2 Answers   Bapco Bahrain Petroleum Company, Shell,

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