what is difference between hart signal and analog signal (4 to 20 ma)

2 Answers   Takreer,

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WHAT PRINCIPLE OF GAS ANALYSER( CO,CO2,N2)

2 Answers   Jubilant Organosys,

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in valve is constructed as per SME B 16.34, then which standard is used for fire testing of valve?.

0 Answers  

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What is derating factor in Motor?

1 Answers  

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What is the difference between floating and fixed voltage?

1 Answers  

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can i calibrate DP transmitter online (while Tx in Service) if yes ,how?

1 Answers   CEPC,

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can a control valve works without positioner?why need tunning of c/v?

4 Answers  

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why we use -ve voltages in vibration prob?

1 Answers  

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What is the difference between PLC-HMI and DCS as each function of DCS based system is possible in PLC ?

2 Answers   Lucky Cement,

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hi i am eswar i want to know the instrumentation interview questations for eil(engineers india ltd) i have applied for engineer post in eil please help in this.my mail id eswar310@gmail.com

0 Answers  

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Explain about P&ID diagram?

3 Answers   Technip, Toyo Denki,

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what is zenier barier and what means zone 1,zone 2,and zone 3

2 Answers   Bapco Bahrain Petroleum Company,

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