Interested to Buy Any Domain ? << Click Here >> for more details...
Why 4-20mA SIGNAL IS PREFERRED OVEA A 0-10v signal?
- 5 Answers
- 12116 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
what is basic difference between motion balance and force balance in pneumatic instrument?
what is RTV function in in process control?
I want to know about DDCMIS in detail ? please explain it. Also give name of reference books in which it is explained in detail in very simple manner.
How RAL(Rotary air lock)works in cement industry?
1)How many tpes of vibration probe and how many tpyes of vibration. 2)how we can calibrate a vibration probe with tk3 3)what is RMS value in vibration measuring application and how we calculate it.
i have done DAE in Instrumentation and Process Control. i have applied for an apprentice training in chemical company after three day my interview will be conduct but i need more information about industrial process control and controller. my e mail is imran_dilsetu@yahoo.com please tell me interview question relative to instrumentation ?
what are procedure of sox-nox calibration
what is the advantage of submersible level transmitter compare to ultrasonic level transmitter?
we have a s-5 simense plc having op7 .recently on op7 showing error 1.plc not present 2. DB error frequently. can u have any solution . please send me.
How is work 5/2 sov?
What are different types of valves?
State bernoulli’s application.
Which type of pressure can be measured by primary elements?
when a magnet is heated?
whats the abbreviation of IOP? is it instrument of power or input open problem?
