Answer / elangovan

Please Join chemical industry.....6 years of experince in
tire industry cannot compared to chemaicl indutry in
instrumentation filed...continue to be in the chemial for a
long time..then you cna try for DOW chemicals ..or any
other bigger indutry in india or abroad..oppurtunites are
more in chemical industry for instrumentation enigneers....

What is a PID?

6 Answers  

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In 2 wire transmitter 1 wire is used for power and other is used for signal( 4-20)ma In 4 wire transmitter 2 wires are used for power and 2 wires are used for signal (4-20)ma . but my question is "what is the criteria or parameters we have to consider while selecting these transmitters for eg( distance, safety zones etc.

1 Answers  

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tell me the temp range of rtd?

8 Answers  

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Hello Friends do you know this answer of this Question? Which color you would use when there is Somthing not correct or need to change In P&ID? i mean color that use for highlight that need to update in P&ID. Yellow Highlighter ? Red color ? Blue Color ? Appreciate for your answer. Thanks Blue Color

2 Answers  

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How a rtd work, and what volts/current goes to a RTD to measure the resistence?

1 Answers   DVC,

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

1 Answers  

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what is droop mode n frequency mode in wood ward governor?

1 Answers   TATA,

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What is shriking and swell effect for a boiler ?

1 Answers  

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what is span adjusment of transmitter? what is the function of positioner/

2 Answers   Kent,

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What is difference between profibus and modbus communication

2 Answers   GMR,

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draw the block diagram of a level transmitter ?

1 Answers   Hira Group, Samsung,

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selection of the zener barrier for the hazardeous area zone 0

1 Answers   Siemens,

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