Answer / bunny

A closed control loop in a very basic manner consists of
sensor, transmitter, controller,signal converters and final
control elements.Actually in a practical loop there will be
many other instruments apart from this to support the
working of above mentioned instruments.

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

0 Answers  

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In control valve there are two type of valve seat we can use metal to metal seat & soft seat.On this valve seat i have following doubt. 1)I have never seen practically the internal assembly of valve so my doubt is that basically weather the seat is soft seat or metal its basic MOC is same as valve body(SS or CS) only in soft seat we are using PTFE ring & place on valve seat & in metal this PTFE ring is not threr am i correct??????? 2)what are the common general rule for using metal to metal seat & soft seat,means its depend on process parameter like liquid,gas, steam & on valve leakage class.

1 Answers  

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State four different types of flow measurement, for gas flow measurement MMSCFD is the common unit expand the unit and specify significance of word S in the unit.

0 Answers   ADMA OPCO,

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what is a device net.

1 Answers  

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if we put any thermocouple on a table in a room without any connection,what temperature should it show.

3 Answers  

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Please asked me How calculate DCS controller memory.

0 Answers   Yokogawa,

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what is thermopile?

1 Answers   HNG,

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how can loop single 4-20 ma to two isolation amplifier? i mean i have two isolation amplifier with 4-20 ma input and 1-5 v output.can i done series connection ?

1 Answers  

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what is dc moter.

0 Answers   Jindal Steel and Power, Lupin,

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How a oxygen sensor & analyzer work at boiler or furnace, what’s the principle & science is beyond this, How O2 sensor scene & convert signal & move toward analyzer & analyzer show reading in percent?

1 Answers   GS Engineering Construction, KNIC,

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How many types of sensors are used in instrumentation & what are names

1 Answers   CTC,

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i have 20 kw motor & my vfd drive capcity is 18 kw if possible to use 20kw motor on this vfd?

4 Answers  

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