Answer / warren holden

Increasing P (proportional gain) will result in faster,
more aggressive, control dynamics with potentially more
overshoot and longer settling time to steady state
condition in the closed-loop response (assuming that I
(integral action time) and D (derivative action time)values
are held constant whilst P is increased).

what are the programming languages used in dcs

7 Answers  

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what is the importance of CV in the control valves? how it is calculated?

0 Answers  

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canu tell me why 4-20 ma and why not this 3-25ma?please give reason of this value.

6 Answers  

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there are two candidates p and q in an election.During the campaign,40% of the voters promised to vote for P ,and rest for Q.however, on the day of election 15% of the voter went back on their promise to vote for P and instead voted for Q. 25% of the voters went back on their promise to vote for Q and instead voted for P.suppose,P lost by two votes,then what was the total no. of voters.

4 Answers   GATE,

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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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DEAR SIR/MADAM MY NAME IS ARKAPROVA BHATTACHARYYA.I AM A FRESHER INSTRUMENTATION ENGINEER.CAN YOU PLEASE SEND SOME QUESTION PAPERS OF GRADUATE ENGINEER TRAINEE EXAM OF DVC(DAMODAR VALLY CORPORATION).MY EMAIL IDs ARE arka_aec@rediffmail.com.

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why we are using MARSHALLING PANEL? what is the role?

5 Answers  

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What is the difference between relative vibration

4 Answers   Desein,

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There are two chlorination tonners both are connected to two pressure swithes and the pressure switch is connected to SOV which operates the valve to changeover the tonner selection i.e if pressure one tonner goes low the other tonner should come in line if it is inautomatic selection design a circuit using relays ?

0 Answers  

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what is Automation?

3 Answers  

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how we convert Mili ampere to temp txt,level txt,flow txt,pressure txt range value

4 Answers   Saadi Cement,

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what is the Instrumentation?

9 Answers   Gulf,

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