Answer / prabhakaran.k

1) Loop Check COver Sheet,
2) Punch list,
3) Cable meggering report,
4) Instrument Installation report,( Impluse tubing if
needed)
5) Instrument calibration report,(Impluse line testing)
6) Instrument Loop Diagram,
7) Piping & Instrument Diagaram,
8) Wiring Diagaram

what is ILD

1 Answers  

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A temperature sensor (RTD) connected via a temperature transmitter is adjusted to give an output of 4ma at 60 deg and 20 ma at 600 deg. This output (4-20ma) from the transmitter is connected to an IGBT-inverter to control a high speed (-12,000 to +12,000 RPM) DC motor. And in the inverter it is programmed as, for 4ma the motor speed will be -3,000 RPM and for 20ma the motor speed will be +10,000 RPM. The question is : If the motor speed is +5,500 (RPM), what will be the temperature? (-sign indicates that the motion is in reverse direction).

9 Answers  

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How to do calibration of magnetic flowmeter

1 Answers   Kharafi National,

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What is the difference between compensation and extension cable.

11 Answers   HPCL,

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WHAT IS THE DIFFERENCE BETWEEN DCS & PLC.

9 Answers   Reliance,

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what is meant by Hydroelectric powerplant?

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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Can be operate control valve without positioning if yes ? how and why?

4 Answers   Focus,

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what are the levels of automation?

1 Answers  

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what is flow

2 Answers  

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What is the difference between sdv and bdv ?

1 Answers  

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Why use ball valves on Gas pipelines instead of gate & or globe valves...means basic diffrence or use of these valves..how designers knows this type of valve with rating is required...

0 Answers   Adgas, GAIL, Oil India, ONGC,

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