How does a single acting, spring return ball valve actually work? Does it require continuous air supply?
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a pressure transmitter with a range of 0 to 2500kpag has a specified accuracy of 0.5 % of span.It is to be calibrated using a comparison gauge to have an accuracy of 0.1% of span.The comparison gauge has a range of 0 to 3000kpag What is the accuracy ratio? is this ratio acceptable?
How will you calibrate an interface level trol/normal level trol in line and in w/s?
What are securities of turbine?
Is an analogue only transmitter as accurate as a smart transmitter?
I have one problem for masoneilan displacer type LT.I give some imformation in data shéet given for liquid level range 0 to 600 mm and sg .955 problem is 0% is ok 25%(23%) or 50%(48%)and 75%(73%) and 100% is ok this is up value and down value all ok so please halpe me
Why we are using 4-20 mA as Analog signal transmission other than 3 to 19 or 2 to 18 or 6 to 22 like wise ? What is the reason behind using 4 & 20 mA? Can anyone give proper technical reply ?
1)how can calibrate temperature transmitter? 2)how can calibrate flow transmitter? 3)how can calibrate level transmitter?
3 Answers ccic, Emerson, JK Pharma, NIGC, Rockwell, UltraTech,
What is pre-commissioning and commissioning ?
In apron feeder how TPH is calculated?
what is performance test.need defination
why we are using -24 vdc in plc?
Why shield is not connected at both end.
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