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.

What is the role of P(Protional), I(Integral) and D (Derivative) in PID Controller?

9 Answers  

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how u calibrate sox nox co2 co in cemps?what is opacity n HPm?tell the standard parameters of cems?

0 Answers  

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What are the reliability data ,like failure rate etc,for bently nevada systems & vibration probes.

1 Answers  

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If i want use the 6 kg/cm2 pressure gauge then how to calculate its pressure gauge range?

1 Answers  

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what the differant between Wet Leg /Dry Leg

2 Answers   Sepam Group,

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what is the differnce between PLC & DCS

7 Answers   TVS,

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Shall we get the reading on level transmitter only by termination,without commissioning?

1 Answers  

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What should be the main consideration while starting the Rotating compressor when we dont know the cut in and the cut off pressure setting of the pressure switch

0 Answers  

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how to calibrate 0- 150 psi presure gauge by dead weght tester

0 Answers  

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Give an example where you had aproblem on the job, and tell me how you solved the problem. and the finalvoutcome.

0 Answers   American Steel,

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Explain Difference between Bech set and operating range of control valve

3 Answers  

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sir ,iam in dem urgent need of HPCL Paper of Instrumentation Branch plz send me at your earliest convenience at ujjwal_sharma1983@yahoo.com

0 Answers   ONGC,

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