selection of the zener barrier for the hazardeous area zone 0

0 Answers   Siemens,

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WHY RESISTANCE TEMPERATURE DETECTOR IS AN ACTIVE DEVICE

2 Answers  

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When a field input to plc is coming from 400 to 600 meters and the input is in 24 V DC? So signal cable of which cross section i should select for proper signal to plc?

5 Answers   Exxon Mobil,

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What is the meaning of Dry contact and Wet Contact related to to sensors?

5 Answers   Emerson, Google,

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for what purpose strain guage is used?

5 Answers  

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What pressure results for a flow transmitter of range 0- 180t/h in the dcs and 0-301mbar in the field using square root extraction. Kindly also suggest formulae for the percentages 0,25,50,75,100?

0 Answers   Kentz,

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Whatis the reset ofset and control system in instrumentation

0 Answers   Asyad International Company, CAE, Sugar Factory,

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What is the principle of a Pressure gauge?

2 Answers   CCIE,

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why are set -10vdc in bently neveda vibration system.

4 Answers  

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Why we are using 4-20 mA as Analog signal transmission other than 3 to 19 or 2 to 18 or 6 to 22 like wise ? What is the reason behind using 4 & 20 mA? Can anyone give proper technical reply ?

5 Answers   Air Liquide,

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WHAT ARE MAIN DIFFERENCE BETWEEN DCS AND SCADA?

7 Answers   ABB, Gold Fields, Rand Water,

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In E&I diagram what is the meaning of rectangular box and circular box

3 Answers   L&T,

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