Answer / m m chotrani

Yes we can measure interface level by purge method.you can
use two purges (sensors of ss pipe generally 1/4"NB).Now
for interface measurement two liquids of different
densities should be there. suppose the interphase takes
place between 300 and 450 mm height from the bottom of the
tank.now the interface be 50%. height difference (probe
distance is 150 mm. multiply 150 withe density of 1st
liquid say 0.8 gm/cc.which will be 120mm. and multiply 150
with the density of another liquid with the density say 1.2
gm/cc which is 180 mm.So your transmitter range is 120-180
mm of water column. calibrate the transmitter for this
range and connect both the probes to HP and LP connections
of transmitters

Answer / ikarous

No,its not possible
you can use the level displacement transmitter which acts
according to buoyancy law

what is the difference between(Flame proof/Explosion proof)& Fire proof instruments.Both are same or different & if different in which way because the transmitter which have approved ATEX flame proof enclouser but it use PTPE O ring & PTFE Head Gasket,so its (fire safe/fire proof)????????

4 Answers  

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what is the primary sensing element in flow or pressureand level transmitter?

5 Answers   Power Grid,

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with the help of suitable diagrams different types of control valves

1 Answers  

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Actual using of tube bender to bend 2 opposite 90 deg at correct measurement center to center of tubing.

0 Answers   CCIE,

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when the operation engineer told you that he gives the control valve order to open but there is no response ! what will you do ? and if you found that there is astuck , what will you do ? (note : it is apanumatic valve )

5 Answers  

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How to convert mA into Percentage?

4 Answers   KNPC,

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my temperature transmitter in field showing 700 degree , whereas in dcs showing 459 degree, how to resolve this?

4 Answers   ONGC,

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What is safety barrier and how it is work

2 Answers   IOCL,

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how can i calibrate I/P converter

4 Answers  

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Ple give me "INDUSTRIAL INSTRUMENTATION AND CONTROL S.k. Singh 3th edition" Solution manual to self-Check Quiz and chapter-wise PowerPoint Slides. Home web-site not available... Ple Ple Ple Ple Ple Ple Ple Ple Ple Ple Ple Ple Ple Ple Ple Thanks for all...

0 Answers  

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Explain bernoulli’s theorem.

0 Answers  

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Dear sir I am MD.zafar eqbal. I have taken this id from allinterwiev .com I have qustion if you dont mind. 1.what is the maximum operating temprature in instrumentation. 2. I want know about viberation i mean wahat types of sensor used in viberation And what types of trabsmitter used.and hiw to control it and wher is used of viberation transmitter and finally how to control it and what types of fault come. Sorry for disturbing you. I know you have no reason for help me. Because you dont know about me.but i request you please help me these question are very usefull for my feauture.plz sir Thanking you. Sent from Yahoo! Mail on Android

4 Answers  

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