what is zero and span ?

0 Answers  

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What is the difference between Pressure Safety Valve and Pressure Relieve Valve, in what condition we prefer choose Pressure Safety Valve rather than Pressure Relieve Valve? and vice versa

2 Answers   Vedanta,

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what is the difference betwwen the 2wire level transmitter and 4wire level transmitter??and their applications also??

2 Answers  

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Do you have reference list?

0 Answers  

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

0 Answers  

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why 8bit microprocessor referred as 2^16?

2 Answers  

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how radio frequency level probes works with its controller ? what is its principle ? pls give me brief explanation?

0 Answers  

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we callculat main steam flow by D.P. but where is H.P. & L.P. IN Orfics?

3 Answers  

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please can anyone tell me in detail, what's mean by open loop and close loop?

6 Answers  

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control valve in manual/auto mode huntting checked spring tention also it is ok.positioner also good condition & incoming inst air line also constant pr.kindly give us correct answer?

5 Answers   Madhu Power,

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what is modbus?and why use it?what benifit

2 Answers  

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why we use -ve voltages in vibration prob?

1 Answers  

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