Why do we go for 4-20mA? why not other standara?

6 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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can u please give the exact ckt explaination of AC Drive related to industries.

6 Answers  

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what is bevel? why bevel required in orifice plate?

2 Answers  

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what is interlock ckt? why it is necessary in industrial machines ?

2 Answers   IOCL,

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Explain pH, Conductivity.

0 Answers   CCIE,

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If range of 3-15 psi, a multiplying relay with a 1:2 ratio would give what output pressure for 6 psi input?

1 Answers  

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Working principle of vibration sensor?, Type of vibration sensor? , Can we use vertical instead of horizental or vice versa?, if not Reasons?

2 Answers  

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WHAT IS A SYMPTOM OF FAULT WITH THE SPAN OF AN INSTRUMENT? 1)ZERO-POINT AND 100% ARE CORRECT BUT NOT A MID-RANGE. 2)ZERO-POINT IS CORRECT ,BUT 1005 INPUT IS NOT GIVING 100% OUTPUT. 3)LINEARITY PRBS. 4)1005 O/p IS CORRECT BUT ZEO POINT IS WRONG.

1 Answers   Reliance,

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hi vishok this is noor plz tell me what type problems will occured i use T/C in the place of RTD in (FEED WATER TANK),plz send ur e-mail address to my ID (mail2noor.hyd@gmail.com)

6 Answers  

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transmitter in 3 connection +,-,And test mode so how Use To Test Mode

1 Answers   Essar,

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Explain level troll principle & interface level measurement.

1 Answers   ADMA OPCO,

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