Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...

why we use only 4 to 20ma other than 0 to 16 ma

Answer Posted / vimal

Whether our instrument is in good condition or not, in order
to check that we are using 4ma as a low value. If we use 0
ma, We can't say that whether the problem is in instrument
or in supply panel.Normally, when we not give supply to the
instrument it will show 0 ma. for that, we use 4 ma as a low
value. Moreover we use 4 to 20 ma as a standard output
because to get linear graph. So, we prefer 4 to 20 ma
instead of 0 to 16 ma..

Is This Answer Correct ?    33 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

If we increase only P what will be controller action ?

2412


What is the use of control cable?

1091


Calibration procedure for Electro magnetic Flow meter

4434


in natural gas indirect water bath heater,how to prevent the problem of backfire from firetube during ignition...becoz of this backfire performance of wbh is going low.

2751


Q- Control problem are mainly classified in _____ types. a-)4 b-)3 c-)6 d-)nono of these Few of them i know is 1- regulator type problem (eg- Air conditioner) 2- tracking problem (eg missile trcking problem) 3- sybernatics 4- optimal control problem

2077


How to Calibrate Temperature Switch in field

1244


I have completed B.E. Instrumentation & control in 2009. i have 3 year industrial job experience in chemical plant.now, I want to join M.E. in external. so, Plese say easiet way and good institute name.

1859


Somebody can explain me about >Critical Loops, calibrations, ESD critical Loop checks, Logic Diagram / Cause & Effect checks for ESD loops,

1627


What do you know about gail?

2424


Explain bernoulli’s theorem.

1009


What is the difference bitween control net scaner and device net scaner

3526


How to calibrate Field bus transmitter? procedure ?

2279


How we can check the 2 wire proxy switch? & how it is connected to DI MODULE OF PLC?

2544


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?

1450


what is cold loop? difference between hot and cold loop?

2175