If we increase only P what will be controller action ?

0 Answers   IMECO,

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What output voltage the proximity switch shows when it is in open enviornment?

1 Answers  

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what is shutoff dp? why is it important for selection of a control valve?

1 Answers  

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what is difference b/w the solinoid volve and autodrain?

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 are de-saturators?

0 Answers  

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what is input and output cards of plc needs to be hot swappable mean

1 Answers  

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TRANSDUSER MOSTLY CONVERT WHICH ENERGY INTO ENERGY ?

6 Answers   DVC,

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In control engg. : Differences b/w 1st order & 2nd order system, graphically & theoretically ?

0 Answers  

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I was working on calibrating turbidity transmitters endress+hauser at effluent polishing plant.We calibrated using NTU buffers.What happened is that when we immersed the sensor, everytime we raise and lower the sensor gradually, the reading will vary.my question is that is there any specifications on what is the required distance from the bottom of the container with buffer to the face of the sensor?Is it ok to install the sensor in a medium which has turbulence specially if bubbles are present?

0 Answers  

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Can a Differential Pressure Transmitter be used as a normal pressure transmitter??

3 Answers  

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what is piezoelectric transducer?give an example in power plant n state its principle?

0 Answers   Jindal,

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