Please why do we use 4-20ma in instrumentation engineering

1 Answers  

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what is the working principle of vortex flowmeter

9 Answers   Essar,

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I am going to attend a recruitment drive by Schneider in 2 weeks. They have a technical test in the beginning. I would like to know what are the areas i should concentrate on while preparing for the test. My major is Electronics and Instrumentation.

1 Answers  

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What is Droop? What is Step/Gradient Limiter in Turbine Governor control?

0 Answers  

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How to calculate 47Liter H2 Gas cyilnder consumtion? Cylinder inlet Pressure is 200bar and Discharge pressure is 6.0bar. Flow is 100ml/min.For the above condition how many days one cylinder can be used?

1 Answers  

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what is proportional & what is proportional band

1 Answers   Nimir,

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what is the diffrence between LCN and UCN

2 Answers  

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The DCS has the following signal type:

3 Answers  

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How much voltage we get between two wire of 4 to 20 ma output? Is this voltage up or down respectvice to 4 - 20 ma ?

9 Answers  

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why in vortex flow transmitter dcs range is configuring less than sensor range. eg (sensor range 500-25000 kg/hr and dcs range 0-24000 kg/hr).

1 Answers   Daelim,

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Senior engineer's please help me, what is Loop Checking and Loop test? and write difference also? soon urgent

0 Answers   Kentz,

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what is the usage of QDV & VOLUME BOOSTER.

2 Answers   ADMA OPCO,

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