Answer / nodoginthishunt

Read the debate about ABB's PPA HMI here:

http://www.control.com/thread/1026243614

If a control valve is hunting means means if we are giving 50% to the cv, the cv will open at 51% then slowly slwoly it will reaches 49% , so what to do for solve this problem. The cv is double acting and mounted for anti surge operation, it having 4 nos. volume booster, one sov, one positioner, etc..?

0 Answers   QAFCO,

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how we can calibrate level transmiiter in field?

6 Answers  

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how to calibrate displacer type level transmitter by dry weight method please mention formula for weight calculation

1 Answers  

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What is 3 element control system

0 Answers  

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Sir , i have completed my M.Sc In Instrumentation and presently working in Maintenance department 3 yrs Exp , is there is any possible for work in offshore ..

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What is meant by Fail Safe Condition in PLC?

4 Answers  

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different between calibration range and instrument range ?

2 Answers  

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why we use -ve voltages in vibration prob?

1 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 diff between the motor and pump

10 Answers   HCL,

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I saw one P&ID 6" control valve has been connected with 8" process line, and 2" valve also connected in parallel with 6" valve. why the 2" valve connected in parallel, Is there any technical reason. please clarify. With Regards-Kittu

5 Answers   GNFC,

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can anyone tell free downloads website for fundamentals and principle of basic pressur,temperature,level and flow

2 Answers  

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