why we use only 4-20 ma signal as AI and not 0-20 ma?
Answer Posted / osagie
The 4mA is called a live Zero.
It make it possible for fault detection.
OSAGIE.
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
where proximity sensor installed on tank in loading arm application
which processor is used in dcs.
Im having problems with interfase betwen SPI v7.0 and SPPID v5.05. Previous versions of Intools shoul be fixed with SPPIDproj.ocx file. It was necessary to replace this file with one that allows the connection between different versions of SPPID. It is necessary in the current version to do the same?Thanks
Introduce yourself which is not present in your biodata?
how to convert cubic metre per hour to newton cubic metre per hour
how to calculate range of level transmitter?
How to convert milliampares into flow??
What you mean by multi stage control vavles?
any body who gone thru recent iocl interview.INSTRUMENTATION questions. I need.
which type of filter gives the constant phase characteristics?
why I need valve guard and whats different between guard and positioner ??
for oil & gas industries which zone is normally preferred? why? give its example?
i hav applied for the post of engg. in iocl so please require the past test papers fro instrumentation engg please please help me and send me the papers or tell me the pattern and type of ques asked in examination......
What is three element drum level control system why its better than single element?
Why all the drains(Gland sealing,ESV,Casing inlet etc) are directly connected to the flash tank instead of hotwell of the condensor in the power plant? My Email Id:naba02222@gmail.com