what is difference between hart signal and analog signal (4 to 20 ma)

2 Answers   Takreer,

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why is an oxygen sensor used in a boiler stack

2 Answers   HCL,

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hw to calibration a control valve?

3 Answers  

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where can i find a flameproof hmi unit?

1 Answers  

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What is instrumentation measurement?

0 Answers  

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what is the working principle of ABB gas analyser of kiln in cement industries

4 Answers  

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Lux meter is the measuring device to measure the lux level of lighting fixture. in industrial sector two types of lighting fixture is being used as street lighting purpose 1. HPSV (Sodium) and 2. HPMV (Mercury). HPMV having white light which is an combination of red, blue and yellow colour, while HPSV haivng Yellow lighting. in HPSV red & blue colour will be absent. during measurement of the lux level of HPSV and HPMV fixture. 1. Lux meter can measure the actual lux level of both fixture? 2. or it will show false reading for HPSV fixture light as it has only yellow light present. please give me answer

0 Answers   Ace Info,

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What should be the stanchan Height for installation of Smoke detector & toxic gas detector in field,according to qatar standard

2 Answers  

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What s PDS & PDMS tools ?its role in instrumentation?

1 Answers  

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In field side transmitter voltage droping here no loose connection then what will happen?

2 Answers   Edac,

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If the average power during generation is zero, why do the analog meters have + and - ?

1 Answers   Siemens,

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EXPLAIN NETWORK COMMUNICATION ON DCS?

0 Answers  

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