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 preventive maintenance , explain with difination

1 Answers   Bapco Bahrain Petroleum Company,

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two common seiling liquid used in seal pots are:

1 Answers   Thermax,

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why cant we use mV instead of mA?

12 Answers   ABB, Power Grid, Qatar Gas, USW, Visa Steel,

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Which are all the commonly used Bordon tubes in the pressure gauges. Do any one use ASTM A 312 tubes for this purpose?

0 Answers  

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Foe selecting control valve if i have the min,normal & max data of flow rate,inlet pressure& outlet pressure,inlet tem.&density than how can i assure that these data are correct,pl. let me know if therew there is any method to check it.& also how we assure that the Cv we get from this data is suitable for valve for controlling require flow.

3 Answers   HPCL,

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generally for transmitter we are giving supply 24vlts?but we are getting output 4-20ma ? how it is possible? is there any operation inside the tx?pls give complete information?

3 Answers  

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Explain working principle of lvdt?

0 Answers  

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what is differance  between SOE an alarams

1 Answers   BMM,

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How to regulate the flow of Air in 4" line, with max flow of 330 nm3/hr and Pressure of 0.5 bar? please suggest the type of instrument required.

0 Answers  

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How to calibrate level switch?

2 Answers   Power Plant, Sabic,

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why twisted pair of wires is used in instrumentation ?

6 Answers   ONGC,

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what is the way of measuring air flow in air duct?explaim instruments used and DP creation in line?

3 Answers  

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