what is start up vent valve ? why it is used in boiler?

8 Answers   ACC, Bhushan Power Steel,

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What is Cu-100 and Cu-1000 ? and tell me its application ?

2 Answers  

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what is the meaning of GK value(fullform) in flowmeter ?

3 Answers   Essar,

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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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how to measure level under ground tank ? which type of transmitter very accuracy ?

3 Answers   Biocon,

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Isometric drawings are generated during _________________ phase of a project

0 Answers  

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Coal mill Instruments Equipments for cement plant And process diagram ?

0 Answers  

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Why we are using PLC instand of DCS in ESD System? can u explain any one?

2 Answers  

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How can we check Zero of DP type Level Transmitter onside?

7 Answers   Birla,

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What is Positive Calibration and Negative Calibration?

0 Answers   SA Kent,

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what is the function of a diaphragm?

1 Answers  

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what is a boiler tube leakage detector? ... what is the working principle ?

1 Answers  

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