Answer / goutammishra

For sinking connection we are usinf -24vdc in plc

If a control valve is hunting means means if we are giving 50% to the cv, the cv will open at 51% then slowly slwoly it will reaches 49% , so what to do for solve this problem. The cv is double acting and mounted for anti surge operation, it having 4 nos. volume booster, one sov, one positioner, etc..?

0 Answers   QAFCO,

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How earthing can be checked????

0 Answers  

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Hot calibrate a level transmitter (wet & dry legs)?

1 Answers   Honeywell, IEC,

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What is the use of each wire in three wire RTD

0 Answers   GSPC,

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how 3 out of 2 Logic/interlocks works? give brief explanation with help of diagram.

0 Answers   Adani Power,

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In Safe Guarding test what means by "Failed to Danger" ?

0 Answers   Optimal,

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why use 4-20mA in the field of instrumentation?

8 Answers  

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what is Best Among SINK Or SOURCE Type Design In Digital Signal, Either Iput Or Output? WHY?Can any one..

0 Answers   Accer, Reliance,

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can you tell me how many stages in steam turbine of 10 MW power plant

2 Answers  

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draw shematic diagram of c/v positioner(smart type)?

0 Answers   Coromandel,

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In a ball valve which require 24v dc supply to operate, whose solenoid valve doesn't have any + or - indication, how can we make wiring connectionto solenoid valve?

1 Answers   Process Control Technologies,

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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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