need instrumentation job completed 1 year trainee ship in mnc pesticide company. now in search of job

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Coriolis flow meter coil supply is 24vdc but why still we given 230ac for this transmitter let me explained detailed review please

1 Answers   Shell,

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How can we say that accuracy of measurement increases by using 3 or 4 wire RTD? because for example: If resistance of RTD element is say r ohms and Resistance of the cable from transmitter to RTD is R ohms And if 4 wire RTD is used, ____._____________________ R ohms | |_____._____________________ R ohms / \ / r ohms \ \ | |______.__________________ R Ohms | |_______._________________ R ohms Then the actual resistance measured will be: Total = r + R/2 + R/2 = r +R Ohms Note: r+R instead of r ohms. hence error

2 Answers  

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In power plant to measure vibration of a turbine we install sensors. Before install this sensor we have to set gap voltage. What is meant by gap voltage and its use?

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What is furnace draft control?

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whats diffeence between dcs & scada operation.

3 Answers   Orchid, Reliance,

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what are the different types of communication cables used in automation and what are the difference in the cables

1 Answers   KN,

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when the instrument tapping on pipe line is located below and transmitter is located above the tapping point for liquid service transmitter, what should we do, is there any additional drain valve is required??

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what is the procedure to callibrate temp controller ,pressure controller,etc. suppose a temp controller showing error 1.5 degree centigrate how can i minimize it.

0 Answers   Sabic, Saudi Aramco Shell Refinery Company SASREF,

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What is modbus?

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how to calculate orifice sizing? and tell me if pipe size bet 50mm t0 200mm then we can use pipe flange??? and above 250mm pipe size should i use D & D/2 Flange? is it right or wrong?

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Describe a time when you anticipated potential problems and developed preventive measures.

0 Answers   Hotel Management,

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