Answer / ayaz

this is a pressure transmitter loop for only monitoring pressure transmitter is primary element for monitoring on dcs is called pressure transmitter loop.

Answer / suresh agravst

First field transmitter to junction box than junction box to barrier than barrier to DCS or PLC in put card. Controller is integrate part of PLC than controller decode the input value and give order final control element through output card

Wht is Dry Leg Calibration and Wet Leg Calibration?

2 Answers  

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What is the use instrument barriers? Can you give me review materials about this?

1 Answers  

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What is diffrence between Transducer and Transmitter?

13 Answers   Ford,

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What is Vena contracta?

3 Answers   CCIE,

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why we are using -24 vdc in plc?

1 Answers   CGL,

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why we use by pas on a positioner? When can a by pass be not used on a positioner ?

1 Answers  

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WHICH INSTRUMENT USED TO CALIBRATE CONTROL VALVE?

23 Answers   Exxon Mobil, Honeywell,

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how to overhaul control valves.what are the proper procedures.

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why is negative range given to measure the steam drum level

2 Answers   Jindal,

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What is surge in compressors? How to detect and control it?

3 Answers   Kharafi National,

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why to use 3 wire at RTD ? what's the reason for common wire ?

4 Answers  

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what's the minimum level required of SIL (safety integrity level)to use fire and gas system?

2 Answers   L&T,

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