Interested to Buy Any Domain ? << Click Here >> for more details...
why we used for range in pnumatic 3-15 psi and current 4-20
ma?
- 11 Answers
- 42021 Views
- Jindal, I also Faced
- E-Mail Answers
Answer Posted / pankaj kumar
because in b/n 3 to 15 psi the responce of actuator & control
valve is linear.before this hunting problem occurs.
we use 4 to 20 ma signal as standard signal because during
confurigation of hart 250ohm resistance or connected that is
easly converted in to voltage signal.(1v to 5v )......
instead of voltage signal current signal use because voltage
is pickup noise more as compare to current.
and in case of voltage signal chance of voltage
droff...............
| Is This Answer Correct ? | 19 Yes | 5 No |
Post New Answer View All Answers
what is interlock system and why we use of this?
key exchanges in wpa,wpa2,tls
What is the Working principle of Dozing valve?
How the sizing of the analog signal cable is calculate?
Describe a time when you anticipated potential problems and developed preventive measures.
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 to calibrate level transmitter with use of HART?
What is solenoid valve? Where it is used?
How to change dcs card in online. (Dsc is maxdna)
what should he know if he is an assitent engineer instrumentation in cement industries of experience of 10 - 15 year.
what is performance test.need defination
Which type of diaphragm use in costic line, dm water line, natural gas line, oil line?
Explain Gas Turbine startup and shutdown sequences
send me model hpcl questions pleas..........my mail id mohideen.dharvesh@gmail.com
what are the documents(Construction point of view for a process plant) submitted by contactor initially entering in to new site for client?
