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....

what is meant by calibration

20 Answers   Exxon Mobil,

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dear sir we have insatlled positioner model no.sipart PS2 make Siemens at our control valves . now problem is if we want to increase the response of valve opening speedy /fast. what parameters do we change for positioner ? any idea. please guide us.

0 Answers   CPL,

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Q1]IF THE RANGE FOR FLOW IS -35 TO 125 WHAT WILL BE THE SPAN FOR ABSOLUTE AND FOR NORMAL? Q2]HOW TO CALIBRATE CAPILLARY TYPE LT? Q3]HOW MANY ERROR CALCULATIONS ARE THERE USED IN PROCESS INDUSTRIES? Q4]HOW TO CALIBRATE TEMPERATURE TRANSMITTER? Q5] HOW TO CALIBRATE LEVEL TROLL AND HOW TO CONNECT? Q6]PLEASE TELL ME THE BASIC FOR INSTRUMENTATION WHICH IS APPLIED FOR CALIBRATION AND FOR ALL? PLEASE MAIL THE ANSWER TO honest_yes@yahoo.in

0 Answers   Cegelec, Honeywell,

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can u plz send me technical questions asked in SCHNEIDER ELECTRICAL technical paper?

0 Answers   TCS,

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what is meant by nuclear power plant?

1 Answers  

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How to calculate flow of air bubbler type level transmiter  According hight and density 

2 Answers   Qatar Petroleums, RKS,

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How will you change the action of a control valve?

1 Answers   CCIE,

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DC motor and DC Drives working funda?

1 Answers  

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suggest a sensor to measure rapidly varying temperature?

1 Answers  

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what is diff between sensors and transducers.explain with ex?

15 Answers  

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what is zero and span ?

0 Answers  

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why we use the 4-20 mamp signal used for transmitter.

5 Answers   Tecnimont,

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