Answer / praveen kumar

Governor input is RPM....and based on setpoint it give 20-200ma to servo actuator, it increase actuator open or closing based on the setpoint and process variable(rpm) errors...its a simple controller oly...but the output range was changed....

I have transmitter of range -20 to -5 kpa.if it is possible to zero trim with atmospheric pressure,means HP and lp having no pressure...what will get after zero trim and it is the right way.....plz give me reply ....

3 Answers   KOC,

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I want to know if flowrate increases in 16' pipe line what will happen to upstream pressure and why?

1 Answers  

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What is difference between Ionization heat and bimetallic heat

0 Answers   KOC,

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why we use only 4-20 ma signal as AI and not 0-20 ma?

2 Answers   Honeywell, Oil and Gas Jobs,

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what is Pre- commissioning.

5 Answers   Saipem, Takreer,

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Please send the all question with answer related for interview.

1 Answers  

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types of cable..? Use of every types of cable..?

0 Answers   Hindustan Zinc,

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i have one absolute pressure transmitter for the range is -400mmhg to 400mmhg. If i do the zero trim at atmosphere the transmitter should be give 4ma or 12ma? which one is correct?

2 Answers  

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How we can check the 2 wire proxy switch? & how it is connected to DI MODULE OF PLC?

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What is critcal speed. what is resonant frequency. why we want to cross crtcal speed on higher RPM (early).

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how to calculate static pressure in a pipe line,when we know the DP(differential pressure) in the line, area of the pipe? please any one tell me the relation between them..?

2 Answers  

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what is weighfeeder

2 Answers  

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