Answer Posted / ys

u can use this transmitter. but u should rerange the
transmitter.(ie if tank service is water and ur lt is dry
leg type,then LRV=0 and URV=1000MMH2O.. If ur lt is wet leg
calibrated, then LRV= -1000 AND URV=0 MMH2O)

IN CONTROL VALVE SPECIFICATIONS GENERALLY TERM " DE- 200" ."DM -400"USED,, WHAT IS DE/ DM STANDS FOR?

1768

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Why not come out analog output in ABB EL3020 when display show correct value

1274

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Which type of diaphragm use in costic line, dm water line, natural gas line, oil line?

707

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can we replace a slot sensor (inductive type) with limit switch (potenial free contact / no-nc type).

1607

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what is surge and how is it prevented, what is the purpose of bypass valve across AS valve.

1569

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Explain about the leakage class of the control valves

1599

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Draw a group of instruments interlocked to a Pump & Motor?

660

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Instrumentation Safe Guarding test. How to determine the interval time of the test. eg:Halfyearly,Every year,Every three years etc.

1651

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If we increase only P what will be controller action ?

1638

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What is the working principle of the magnetic meter?

633

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why we are not using the turbine flow meter in the steam service?

1714

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can anyone guide me how to get any of the previous year GAIL question papers? are they available? 0n 2nd august i have to take the written test.

1467

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POSSITIVE PULSE IS APPLIED TO AN INVERTER INPUT.THE TIME FROM THE LEADING EDGE OF THE INPUT TO THE LEADING EDGE OF THE OUTPUT IS 10 ns. THE TIME FROM THE TRAILING EDGE OF THE INPUT TO THE TRYLING EDGE OF THE OUTPUT IS 8 ns. WHAT ARE THE VALUES OF tPLH and tPHL?

1763

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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??

1720

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what is isloted barrier how it works and what are the main purpose.how it make safe area.

1602

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