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 are use only 4 to 20ma. signal.

Answer Posted / nagarajan audaiyarpatti

In the fault or open condition we cannot find the 0mA as 0
sothat the 4 mA consider as a zero and 20mA as a span ,in
this condition we can maintain 250mohms in the loop,sothat
we use usually 4 to 20 mA instead of 0 to 20mA in the
transmitter for measuring all the parameter such as
pressure ,temperature ,level,flow.

Is This Answer Correct ?    3 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Why plc require in analog input 4-20amp & 0-10 volt?

1076


what is diffrance between FF & SMART, explain with difination

3136


how do u calibrate the vacuum transmitter if it shows more reading

1990


Hi Friends i am going to write BARC written test by this month 20th (20-5-2008). So please if any body knows the details about this or having previous question papers pls mail me to kkumarei@gmail.com. For Suggestions give one message to 9962122264

2351


pls suggest suitable MOC of diaphragm for pressure measurement of UREA grade solution service fluid.

3073


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

2239


Coal mill Instruments Equipments for cement plant And process diagram ?

2873


How to calculate P,I&D value in PID controller ?

2080


The company where I am working, their is rosemount 5400 series radar type level transmitter, it is meant to show level of filled tank, but along with the level it is showing temperature also, so my question is how a onon-contact type radar type level transmitter can show temperature even if it does not have any contact with the fluid?

2214


Which is the best field foundation bus. ( FF ) Yokogawa, Honeywell or others ?

1747


what is the diffrence between pressure safety valve & pressure relief valve....pls

2132


what is performance test.need defination

1662


how can be calibrate flow indication transmitter (rosemount) it shows excess milli amps nearly about 24 ma on full scale, but its scale was set on 20ma on full scale..???how can be simiulate..???

2362


What happen if we install my pressure transmitter below the elevation of pipe in natural gas service?

993


how u choose thermowell lenght n pnumatic C/v size?

2050