Answer / Siyaram

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why we use only 4 to 20ma other than 0 to 16 ma

5 Answers   Invensys, Systech,

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in split range control system we are using two control valves,but we have only one positioner and one feed back link.so how we use this one feed back link for two control valves?

2 Answers  

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what is controlling card in dcs? how u measure dcs memory?what is bus in dcs?how u know dcs speed n ehternet speed?

1 Answers  

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which transister (npn or pnp) is used in vibration monitoring for negative voltage? 

2 Answers  

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why do we use 4-20mA as o/p and why don't use 0-20mA or 5- 21mA?

3 Answers  

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What do you need to consider when installing a flowmeter

2 Answers  

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it is possible to check the fail safe condition in pressure transmitter. if possible how?

1 Answers  

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What is the working principle of sox, nox analyzer?(opacity monitor) Otherwise how to measure the sox,nox?

1 Answers   Thermax,

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Dear all... I have 1 0-400 duplex type RTD, I connected the A side to the temperature indicator and B side to the PLC panel, but when I have observed then found that The PLC side temp has the variation. and it was distub to other RTD temp also. so what can I do.pls help me

1 Answers   Worley Parsons,

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How to set up the various advanced process controllers, input the proper parameters, and tune those controllers given related control system information.

1 Answers   EID Parry,

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how to replace the smart transmitter software

1 Answers   L&T,

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is here anybody who knows how to calibrate the pressure transmitter? ONLINE

5 Answers  

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