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How to get Cv of control valve having following parameter ,i.e inlet pressure 4.5kg/cm2 outlet pressure 1 kg/cm2 specific gravity 0.808
3 6745how radio frequency level probes works with its controller ? what is its principle ? pls give me brief explanation?
1887why generation of syncronized generator increases when frequency of grid is less then 50Hz & generation decreases when grid frequency goes up from 50 Hz, as comparision with set value entered in govering panel?
1 3842Hi..i am B.E. (elect.&comm.)..i m workini in a bio mass power plant as inst. Engg. I want 2 know about growth in big power plant sector..is this field is good 4 me ..i m electronics engg..? Plz plz reply..
2 5671how does we calibrate a square root flow transmitter ,give an example and explain it step by step like range calculation , calibration hook up series connection , zero check , and how to apply pressure , and if not geting proportional output then what should we do ?
5673In 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 2540In case of Transmitter's(e.g.Ultrasonic Flow meter ) we have an normal practise of selction of upstream and downstream distance such as (20D and 5D ).can anyone please let me know whow to calculate "D" ?? i guess it refers to pipe thickness is t right ?
2 4744a flow transmitter [range-0-400mbar] connected in process line. please explain me how to calibrate the flow transmitter , & how to do static error
L&T,
2281Post New Instrumentation Questions
what are the definitions of input, output, command & signal according to instruments controlled by PLC using DCS System?
Can Any body tell me about the Contact or Email id of any good Consultancy which help me to find a job in Instrumentation Field in India .I have Six years of Work Experience in the Same field.Please revert me back on shammi_gwalior@yahoo.com ?
what is the reason while warning lamp is on while the engine is cranking?
How to Calibrate Vortex Flow transmitter in field
What is the use of temprature compensation?
which type inter lock use in petrochemical refinery,and oil & gas?
flow transmitter formula?
sir, i preparing hpcl,ongc,barc,hal exams(instrumentation engg)pls send a placement papers
Why thermo wells are used? What materials are used in thermo wells?
1- Explain about HPM 2- What is the FSC and explain the configuration of FSC 3- explain the complete loop of vibration, how it works (field to control room) 4- What is the use of proxymitter? 5- During job your partner effected with H2S then what you have to do. 6- what type of gland packing uses when valve glind is leaking.
full process of gas turbin?
how to work MIL contol valve posistioner ?
What is the use of GMV in turbine?
what is wave length were using ?
With N nodes and B branches what will have a network ???
