Answer / wael mohamed

yes,according to the frequencies of gas in different areas

How INtools is useful for routine Instrument maintenance?

0 Answers  

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why is the sleeve of the cable used for?

2 Answers   Jindal,

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Single acting ON-OFF valve. it is air to open. when sov energized , valve will be open, so during that if air fail then what will be the condition of valve ( open or close ) ???

4 Answers  

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In control valves (like feed water control valve) we will give 3 kg pressure and how it controls 110 kg of water pressure?

4 Answers   SSL,

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What is scale factor of proximitor & unit of the viabration.

2 Answers   Sabic,

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What are continuances of connecting earthing and shield of branch cables (instrument to Junction box), at the same earthing pot provided on JB? Is it ok, or may produce some problem? 

0 Answers   Process Control Technologies,

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Why any transmitter signal is 4-20 mA only Why is started from lower range 4 mA and upper range is 20mA.

5 Answers   Edac,

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What is Modbus communication

0 Answers  

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In oil & gas industries and petrochemical industries, there are classification of zones like zone 0, zone 1, zone 2. Is there any differences in voltages or power supply supplied for the process instruments, control instruments depending on the zones

1 Answers  

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Identification of control valve parts.

0 Answers   CCIE, Oil and Gas Jobs,

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why we use 250 ohms across HART CALIBRATOR DURING CALIBRATION OF TRANSMITTER

4 Answers  

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Describe all types and levels (4-20mA, 0-10V, mV, pulse, etc.)of analog and digital I/O used in process control application.

2 Answers   Jindal,

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