Answer / pk chakravarthy

pid tunning is very large topic to understand mostly gain
is adjusted and curve is checked

Answer / satyendra bhai patel

Dear sujit ,


in PID tunning we just try to minimise the band gap between
PV and SET value.

set P,I,D, value in real time

nothing elese....


just chilll....

when a magnet is heated?

0 Answers  

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What are the different modes of a contollogix family processor? How they work?

3 Answers   Honeywell, Siemens,

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How to work mass flow meter ?

1 Answers  

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how to calibrate transmitter online (in running plant)please explain correct procedure

4 Answers   Sabic,

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What is the potential contact / output??

1 Answers   Vasava Engineering Private Limited,

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What is transmitter

2 Answers   GNFC, QNFS,

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1 Answers   Reliance,

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What is protocol ?

3 Answers  

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3 Answers  

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Why any transmitter signal is 4-20 mA only Why is started from lower range 4 mA and upper range is 20mA.

5 Answers   Edac,

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I saw one P&ID 6" control valve has been connected with 8" process line, and 2" valve also connected in parallel with 6" valve. why the 2" valve connected in parallel, Is there any technical reason. please clarify. With Regards-Kittu

5 Answers   GNFC,

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I have observed in field instrumentation work... I remove the fuse of an analog transmitter then it shows 7.75 kg/sq cm (which is practically wrong value)in DCS and when put the fuse it shows 0 in dcs. Then cheach the field transmitter termination and found moister. clean that and then it shows 1.1 kg/ sq cm which is right value. Please describe the above phenomenon.

1 Answers  

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