Answer / rajeev

4-20ma is bcoz in older transmiter ckt 3ma is use for it self to ckt operation & 20ma is for saftey purpose bcoz 30ma is dangerous for life.

any questions on motor and energy conversions machines?

0 Answers   ABB,

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send me last 5 years questions asked in rrb chennai, for section engineer

0 Answers   RRB,

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What unit is used for measuring comp. outlet flow. it is CFM, M3/hr or NM3/hr. ?

5 Answers   Jk Tyres,

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why use MMWC unit

9 Answers   Praxair, Saipem,

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A valve in series with an orifice plate (DP transmitter), is aligned for constant pressure in the pipeline, if there is an error dx, How to align it in process.

0 Answers  

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Dear Sir/Madam,im going to attend Hpcl written exams on feb 17th in instrumentation stream..can anyone send me the HPCL model papers and pattern of HPCL ....i ve not yet attended anything in HPCL...so i dont know how it comes...so just i need some model test papers and pattern ..pls help me friends...

0 Answers  

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please tell me how maintainence person shifted to good epc company/design company

0 Answers  

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whats the working principle of level transmeter?

6 Answers  

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What is loop1 and loop2 in MTS LT?

0 Answers  

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What are the automatic controller MODES?

2 Answers   DEWA,

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I m appointed as an automation trainee engineer in small firm in that I am only the one , my company give me a project on s7-200 as i m beginner I don't know how to program so please send me the helpful site so that I complete my project before deadline....please help me out in this critical situation.

0 Answers  

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Transducer Input 0 to 230 v ac Output-0 to 10vdc Receiver Input 0 to 10 vdc and Output 4 to 20 ma How?

1 Answers  

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