what is mapping in instrumentation and control engineering

2 Answers  

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what is the difference between Cv and air consumption? why the customer needs Air consumption details?

0 Answers  

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HELLO FRIENDS PLZ EXPLAINE ME WHAT IS ORIFICE?AND HOW WE ARE USING IT IN INSTRUMENTATION

5 Answers   Wartsila,

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How do you measure g's?

5 Answers   Aramco, GNFC, HPCL, Polmon, Thermax,

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what is the principal of operatio of dc motor

1 Answers  

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I work on a electronic positioner transmitter 4211 at the field.I connect my multimeter in series to get the current output then I calibrate it to 4ma in 0% of position of the valve and 20ma in 100% position of the valve.My problem is in the field I get the correct output current based on my multimeter but in the dcs they only receive 40% in a output 20ma of this positioner.Then I try to simulate in this analog card and they receive the equivalent percent on the value that I simulated.Is ther any possibility to reset the zero and span of this positioner 4211 fisher.And what other possibility I can do to fixed this.This is my email add ( landicho_randy@yahoo.com )

4 Answers  

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how can we caliberate interface level troll

2 Answers   Grasim, IOCL, KOC, Sankyu,

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in mass flow meter what is drive friquancy ?

0 Answers  

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How to calculate P,I&D value in PID controller ?

0 Answers   Jindal Steel and Power, SAL Steel Power,

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why we cant transmit the dc current easily

1 Answers  

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what is Green field /brown field exposure in chemicals /oil /petrochemicals /refineries /paints /speciality chemicals /gas /FMCG /glass industry

1 Answers  

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control valve in manual/auto mode huntting checked spring tention also it is ok.positioner also good condition & incoming inst air line also constant pr.kindly give us correct answer?

5 Answers   Madhu Power,

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