why 4 to 20 ma used at 0 set

2 Answers   Borouge, Yokogawa,

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what is a instrumentation ?

10 Answers  

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how we calculate the range of flow from a dp?i mean if we have a dp,3810mm h2o.how much flow ranges we can use for this DP?

1 Answers  

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in transmiters(rose mount) how to check output 4-20ma ? and input 24v? i need exact explanation?

2 Answers   Adhunik,

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whats diffeence between dcs & scada operation.

3 Answers   Orchid, Reliance,

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Explain about the leakage class of the control valves

0 Answers   CCIE,

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Can we measure pressure using differential pressure transmitter? If yes then how?

5 Answers   Reliance,

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what is diff between sensors and transducers.explain with ex?

15 Answers  

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How oil line flow measured?eplain about instruments used and working principle?

0 Answers  

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How does work A temperature valve or fv control valve in process plz brief me

0 Answers   Jindal,

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why we use only 4-20 ma signal as AI and not 0-20 ma?

2 Answers   Honeywell, Oil and Gas Jobs,

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In a gas over oil actuator, after the opening/closing of valve, how the gas is vented out? How does the hydraulic/gas circuit function?

0 Answers   Reliance,

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