why 4-20 mA signal is preferred over a 0-10V signal
Answer Posted / ibrahim s
0-10V :-
1. Voltage droup occurs.
2. Not able to find open circuit(Normally the circuit in
open condition o/p is "0", In 0-10V signal level starts
from 0V itself, so that can not able to find open circuit
easily)
3. Noise interference is high.
4-20mA :-
1. Easy to find the open circuit(because this signal level
starts from 4mA, if the circuit in open the output shows
0mA, so we can find easily the open circuit) .
2. Less noise interference.
3. Current measures remain same in any point of the signal
line.
So that 4-20mA is preferred over 0-10v
Is This Answer Correct ? | 86 Yes | 7 No |
Post New Answer View All Answers
Hi,can anyone help me out with PhD programs related to Instrumentation field?I have a degree in electronic Instrumentation?
why we use impulse line of flow transmitter at 45 deg. angle both side of orifice plate.
what is function of SCADA , and how is it work, explain with difination
what is function of sensor, and how is it work , explain with difination
sir i m preparing for BARC but i am not getting any papers to prepare for this exam so please send me some sample papers to my i.d for the preparation of barc.
we want to control pump in let pressure and tank (for exp) our inlet line if water cam and pump will on and when our tank will full pump will off also if our inlet pressure low pump will off even tank not full.this pump i want to uses on our water supply line.
Can Any body tell me about the Contact or Email id of any good Consultancy which help me to find a job in Instrumentation Field in India .I have Six years of Work Experience in the Same field.Please revert me back on shammi_gwalior@yahoo.com ?
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
Why thermo wells are used? What materials are used in thermo wells?
Explain why plc require in analog input 4-20amp & 0-10 volt?
what different types of problems do occur while doing instrumentation commisioning and how to solve them? please explain in detail
how to relay switch sense the fault?
How to calibrate capillary type level transmitter
for oil & gas industries which zone is normally preferred? why? give its example?
what is Best Among SINK Or SOURCE Type Design In Digital Signal, Either Iput Or Output? WHY?Can any one..