Interested to Buy Any Domain ? << Click Here >> for more details...
why we use 4-20 mA to do calibration of the instruments.why
we cant use 0-20 mA?
- 8 Answers
- 24271 Views
- Emerson, IEM, I also Faced
- E-Mail Answers
Answer Posted / ramu
For electronic Instruments operates with 24V(DC),will give
output 4-20MA and pnuematic Instruments operates with 20PSI
will output 3-15PSI.These instruments circuits are arranged
in such a manner that the out put should be as mentioned
above because you will get LENIERITY only in these
ranges.If you take 5-22 MA, you will not get lenier output
( 0%-4MA,25%-8MA,50%-12MA,75%-16MA and100%-20MA)
| Is This Answer Correct ? | 6 Yes | 3 No |
Post New Answer View All Answers
How to calibrate smoke Dectector
How the warning lamp of a charging-system is activated ?
What is solenoid valve? Where it is used?
What is the use of temperature compensation?
What is eddy current? Describe the operating principle of proximity probe.
Describe how to use megger to measure the earth resistance and insulation resistance
What is the main difference between Cavitation and Flashing?
How ejector(or)evactor air pump is working in thermal power plant?
what happen if i increase height of displacer type LT.accuracy or sensitivity are affected.why?
please tel me the calibration of pneumatic controler.
How to work togather like sov,limit switch,proxy switch and booster in xv
What is 3 element control system
need instrumentation job completed 1 year trainee ship in mnc pesticide company. now in search of job
what is effect of specific gravity in differential level transmitter , explain formula related with this .
What is loop1 and loop2 in MTS LT?
