in a electronic controller why we are using 250 ohm resistance in input signal?is i/p is necessary in control valve when we are using electronic controller give details?

3 Answers   IOCL,

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How to convert mmWc(mili meter water colam) to tph(ton per hour)?

0 Answers  

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how we convert Mili ampere to temp txt,level txt,flow txt,pressure txt range value

4 Answers   Saadi Cement,

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How we calculate orifice plat size???

0 Answers  

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in the boiler in the main steam line and its bypass line and the startup vent vales are only motorised valves why cant we use other types of valves such as pneumatic.

3 Answers  

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loop chech tools list

1 Answers   BAP,

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Operational amplifiers

0 Answers   CCIE,

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a pressure transmitter with a range of 0 to 2500kpag has a specified accuracy of 0.5 % of span.It is to be calibrated using a comparison gauge to have an accuracy of 0.1% of span.The comparison gauge has a range of 0 to 3000kpag What is the accuracy ratio? is this ratio acceptable?

1 Answers  

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WHAT DO WE MEANT BY INSTRUMENT MAINTENANCE IN SOFTWARE SIDE.

1 Answers  

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Flame scanner

1 Answers  

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can you provide me full detail about instrumentation in ONGC??

0 Answers   BRML, ONGC,

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How LVDT position transmitter works on DC supply(24vdc) from DCS, whereas transformer operates on AC supply? pls help..

1 Answers  

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