what does a positioner in control valve ?

11 Answers  

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What is possitive and negative feedback?

3 Answers   KNPC,

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Why Ma signal is using for control system?

1 Answers   Petrofac,

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How do understand by hart protocol?

4 Answers   BW Instrumentation Electrical,

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Where & Why we are using SURGE PROTECTION ?

4 Answers   IOCL,

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In turbine, what does term CDP, NI, NH, HSSOC, means

0 Answers   ADMA OPCO,

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if change the pid in D value so what action.

2 Answers   Siemens,

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define SIMULATION a and what is the need of it

3 Answers   Siemens,

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i have an interview in Qatar Petroleum. So please provide the all details abt fire & gas systems

1 Answers   Qatar Petroleums,

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What are the different types of thermistors used in industries? How to the operation of typical thermistor?

0 Answers  

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how u calculate ai/di/ao/do capacity in ur dcs?

1 Answers  

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Why 250 or 500 ohm load resistance is use in any transmitter

2 Answers  

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