Where are oxygen analysers installed in cfbc boilers? What are their usual readings?

0 Answers  

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why we use by pas on a positioner? When can a by pass be not used on a positioner ?

1 Answers  

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what is meaning of static pressure

4 Answers   Ambuja,

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Pls.could any one Clarify the following with an example. 1.At What condition Close on Rise and Close on Fall Pressure Switch contacts are used. 2.If Pressure is abnormal as per set pressure,if connecting Terminal of pressure switch breaks,how the voltage extends to Relay base. 3.Are these contacts come under fail safe philasaphy.

1 Answers  

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List three types Level Switches with their working principles

0 Answers  

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what is the difference between RS 232,RS 485,RS 422, how they different from each other

15 Answers   TCS,

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why we are using pnp npn for sensors is there any other type?

1 Answers   CGL,

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why we should maintain neutral earth voltage below 1V while calibration? why cant it be 1.2V or 2V

0 Answers   Hospira,

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What is the standard height for stancion supports? and what is the standard mounting height for different transmitters?

11 Answers   Samsung,

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what is hart communicater? can u give brief explanation about this issue?

3 Answers  

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why do 4 mA serves as 0% not 0 mA?

10 Answers  

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how eddy current loss in probe and induced gap voltage accros probe trip and shaft

1 Answers   Reliance,

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