Answer / sanjay goswami

Two probes are used to have a counter check on pulse
failure and to ensure pulse intregrity.Means if one probes
misses some pulses you can get an alarm or error message on
that

Answer / janes

Turbine Flowmeter is used for the Mass flow measurment. For
Massflow meter, temp and pressure data to be taken in
account to calculate the Massflow rate.

what is the difference between single and double compression cable gland

3 Answers   Petrofac,

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how we can check level probe and controller

2 Answers  

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what is the principal of flow transmeter,level trans meter,presser transmeter?

11 Answers   Nestle, Reliance,

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WHAT IS MEANT BY SUPERVISORY CONTROL?

3 Answers  

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what is the deferance between LCN and UCN.

1 Answers  

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Why using negative voltage in vibration measurement?

2 Answers  

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how to work static pressure sensore how to work dpt

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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why can't we use 5-20mA standard or some other instead of 4- 20mA?

6 Answers   Emerson,

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What is cold junction compensation in thermocouples? How is it achieved?

4 Answers   Honeywell,

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Differentiate between ultrasonic flowmeter and radar type flow meter

0 Answers  

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WHAT IS A CALLIBRATION? WHAT IS MEEAN BY LOOP CHECKING INCLUDES PRESURE, THERMOCOUPLE,TT,DT?

5 Answers  

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