how flame detectors sense the flame.

3 Answers  

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generally transmitter power supply having some range(12v to 35v) but the out put(4-20 mA) must same for given input.If we vary the power supply voltage then output mA also to be change according to V=IR. Is there any voltage regulator in the transmitter ?

2 Answers  

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how to define range of dp level xmeter in open tank

1 Answers  

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What is close loop ?

1 Answers   College School Exams Tests, GMR,

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what is the equation for gas flowmetering? whic includes gas flow, pressure, and temperature.

2 Answers  

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how to calculate flow by dp transmitter?

4 Answers  

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What is cable size for intrenal wiring in DCS or PLC ,from any card to Terminal amd Why

2 Answers  

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how we can measure the interface level?is it possible to measure interface level with dp or pressure transmitter?

2 Answers  

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when the force applied on load cell the ohms will be varriying .and how its convert ohms to mv generate and have any formulae?

1 Answers   UETCL Uganda Electricity Transmission Company Limited,

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Can any one tell me what type of question asked for instrumentation and control interview panel??? pls mail ramashankar.goel@gmail.com

0 Answers  

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If a control valve is hunting means means if we are giving 50% to the cv, the cv will open at 51% then slowly slwoly it will reaches 49% , so what to do for solve this problem. The cv is double acting and mounted for anti surge operation, it having 4 nos. volume booster, one sov, one positioner, etc..?

0 Answers   QAFCO,

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what is use single seated and double seated valve?

2 Answers   Doha Petroleum Construction DOPET,

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