Interested to Buy Any Domain ? << Click Here >> for more details...
Why 4-20mA SIGNAL IS PREFERRED OVEA A 0-10v signal?
- 5 Answers
- 12258 Views
- I also Faced
- E-Mail Answers
Answer Posted / priyabrata samanta
The reason is - if we use 0 to 10 volt range then even if
an error occur in the transmission line we will not be able
to identify it. As there will not be any way to compare this
state with zero signal.
Whereas in 4to 20 ma current range we will be able to
compare the fault in the transmission line with zero
signal(4 ma).
Another reason is that using voltage as a transmission
signal is unfaithful and erroneous. As there will be voltage
drop in the transmission line , and therefore true signal
will not be received at the receiving side. But if we use
current as the transmission signal then noise can effect the
transmission, but "current drop" will never happen.
| Is This Answer Correct ? | 9 Yes | 0 No |
Post New Answer View All Answers
Why humidity limit is 30 to 55 % for raw material storage?
What is zone,loop/fire alarm system?
why we are using digital signals for I/O & how to measure this signals is getting or not ?
why using negative supply for bentley nevada vibration system ?
what are the different types of Protocols? & their applications.
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
we have level transmitter for h2s04 storage tank capacity 10k ,always there are failure of transmitter due to failure of magnetic floats ,please come up with solutions at the earliest.
What is standard procedure of manual mapping in Radar type level transmitter?
what is stroke check for field instument transmetter's & AOV's
In a gas over oil actuator, after the opening/closing of valve, how the gas is vented out? How does the hydraulic/gas circuit function?
What is stripper & spilitter ? Diffrence in this.?
principle of automatic votage regulator
Explain the working of rota meter.
what is the importance of CV in the control valves? how it is calculated?
anybody having Qatar Petroleum questions for instrument Technician offshore ....please send me
