Answer / nikunj

Cryogenic means to work in lower temperature range (-50 and
below than that).

Nikunj

Answer / afsar mumtaz

very low temperature like liquid nitrogen and liquid helium
:-156 to -2560 degree.

what is dry leg and what is wet leg?

3 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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what is the diffirence between Earth and Neutral

4 Answers  

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What is the formula to convert mv to temperature in k type thermocouple?pls simply elaborate? I got one ans.it is Temp=mv×25°+atmospheric temp,but here what is 25°,i confusef ,so pls????

2 Answers   HPCL,

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How I identify to solonied coil which is 24v or 230v In our lab.because there is no tag.

1 Answers   MRPL Mangalore Refinery and Petrochemicals Limited,

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What is derating factor in Motor?

1 Answers  

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My flow transmitter range is 0-1000mmwc.DCS range is 0- 100m3/hr.What is correspond out put in terms of milliamps if my flow is 65m3/hr

4 Answers  

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What are different types of valves?

0 Answers  

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What is cv of control valve

4 Answers   Cadila,

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I m appointed as an automation trainee engineer in small firm in that I am only the one , my company give me a project on s7-200 as i m beginner I don't know how to program so please send me the helpful site so that I complete my project before deadline....please help me out in this critical situation.

0 Answers  

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send me HPCL paper

6 Answers   HPCL, Shuiba Hotel,

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What is frequency factor in massflow meter? When using frequency output?

0 Answers   PCMIL,

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