why thermocouple called thermocouple?

4 Answers  

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when the operation engineer told you that he gives the control valve order to open but there is no response ! what will you do ? and if you found that there is astuck , what will you do ? (note : it is apanumatic valve )

5 Answers  

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what is basic difference between motion balance and force balance in pneumatic instrument?

0 Answers   Sterlite, TCL,

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what is modbus?and why use it?what benifit

2 Answers  

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What is sensitivity of K type thermocouple? Is polarity important in thermocouple connections?

3 Answers   Honeywell,

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i want to know for good instrument engineer or success how many software knowledage required & from which university

0 Answers  

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Transducer Input 0 to 230 v ac Output-0 to 10vdc Receiver Input 0 to 10 vdc and Output 4 to 20 ma How?

1 Answers  

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Why do we use 24V DC supply in instrumentation? What are its merits and demerits??

1 Answers   JSW, MJPRU,

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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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is fan is a transducer or inverse transducer?

5 Answers  

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What is the function of a diaphagram

5 Answers  

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where i can get training in INTOOLS and PDMS in Delhi-NCR OR north part of India. please reply with ur ans. at arunsamkaria@ymail.com

0 Answers  

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