Interested to Buy Any Domain ? << Click Here >> for more details...
why using 4-20ma not using 0-20or why not using 1-
20ma???????
- 7 Answers
- 8974 Views
- I also Faced
- E-Mail Answers
Answer Posted / srinivasan narayanan
Most of the Transmitters output used 4 -20mA. This is because to identify whether the transmitters are live or not
if the Transmitter shows 4 mA it's a live Zero
if the Transmitter Shows 0 mA it's a Dead Zero
| Is This Answer Correct ? | 6 Yes | 1 No |
Post New Answer View All Answers
what is the current pay package for an instrumentation engineer having 2 years of experience in cryogenic technology???????
How many interlocks at turbine? Plz explain briefly
For what reason would you possibly be compelled to make use of a Smith Predictor. Explain the idea behind the operation of this device.
where proximity sensor installed on tank in loading arm application
when the instrument tapping on pipe line is located below and transmitter is located above the tapping point for liquid service transmitter, what should we do, is there any additional drain valve is required??
in valve is constructed as per SME B 16.34, then which standard is used for fire testing of valve?.
please send me the inteview questions in IOCL
send me model hpcl questions pleas..........my mail id mohideen.dharvesh@gmail.com
Draw block digram for well head from well to shipping pump?
What is solenoid valve? Where it is used?
What is standard of DCS panel design?and what is step of DCS panel design?wiring and type of connector(screw or DB connector)
I am teja. I am studying Msc(tech) Electronics and Instrumentation (3years course) in Andhra university. But my course is not recognised by UGC and AICTE. Please tell me the job opportunities after this course. And i fineshed PLC course in IGIAT ,Vizag.Also complted my short term coure in SCADA, Seimans WinCC in ATI,Hyd.After Msc can i join Mtech for good job? or phd. How i can get good job in INdustrial Automation Side. Please give replay.Because this is my life matter.
What is zero elevation and zero suppression?
Why 4-20 amps is being used in instruments? Why cant we use any other range instead of 4-20 amps? Why only 4 amps is taken as lower limit and why 20 amps is taken as the higher limit?
Punj lloyd is coming in our Jadavpur Universtiy campus for campus placement. Please send me some hints about the writtend exam. My email id is subratafriends@gmail.com
