Answer / winnie

The flow transmitter is installed before the control valve,reason being the transmitter reads the flow from orifice plate then from the output of flow transmitter to the final controller then to control valve.

why we use the 4-20 mamp signal used for transmitter.

5 Answers   Tecnimont,

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warning lamp does not light, but it does light when the wire from the lamp going to the sending unit is grounded (the part that plugs into the sending unit) what does this indicate)?

1 Answers  

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The wire is disconnected from the temperature sending unit (magnetic gauge). A voltmeter connected to the wire reads 0v. What does this indicate?

2 Answers  

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without color coding, without nameplate, without multimeter how can you find the type of thermocouple???

1 Answers   Sabic,

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What are continuances of connecting earthing and shield of branch cables (instrument to Junction box), at the same earthing pot provided on JB? Is it ok, or may produce some problem? 

0 Answers   Process Control Technologies,

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what is the difference between cold loop and hot loop

2 Answers  

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Dear Sir/Madam, I am attending an interview for ETs in BHEL. I have cleared my written test under Electronics (Instrumentation). This is the first time I am appearing for an interview. Can any one who has attended the interview earlier give me a clue to face the interview. With regards Sindhu

2 Answers   Siemens,

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what is ILD

1 Answers  

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difference between null and deflecting instrument.

5 Answers   ONGC,

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What is calibration?

6 Answers   Syscon,

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What is trim material . Why it is known as trim.

1 Answers   L&T, LNG,

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why orfice is not used for main steam flow calculation

0 Answers   OEG,

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