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 do we go for 4-20mA? why not other standara?

Answer Posted / jb

In long distance wire if some wire are broken then at the
receiver end there will be current value 0. If we take 0-20
standard in that case it will be difficult to know that the
current value is actually 0 or its 0 because of broken wire.
but in case of 4-20 it the the signal is in off state then
at the receiver end we will have current value 4 and in
case of broken wore we will have current value 0.

Is This Answer Correct ?    17 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How to change dcs card in online. (Dsc is maxdna)

2709


Emergency Shutdown Systems/ Plant Shutdown System.

2246


what is diffrance between FF & SMART, explain with difination

3192


Can I calibrate the Electromagnetic Flow Meter on line and How.

1946


PT RTD Range: -200 to 500 degree celsius If I configured in DCS Lower range and Upper range . In face plate it shows red colour due to overa range how was the characteristics look If the temperature is more than operating range. how was the characteristics look . whether its in Resistance vs Temperature curve is Linear or Non linear

1942


How we calculate orifice plat size???

1515


What is the cascade control

1402


I WANT SECURITY PAPER MILL, HOSHANGABAD TEST PAPER.KINDLY SEND TO MY MAIL ID

2778


what is the procedure of belt scale calibration?

2415


what is the process to make control schematic ?

2236


Name different types of bourdon tubes.

1120


Can please tell mi about SIOS, PRM, SERVER, and what is the diference between PIN LAN, PCS LAN,APC Server, and please send the Doc if possible for referance,mail id patil_amit17@yahoo.com

1957


Can anybody please let me know Orifice plate sizing calculation formula and step by step procedure

1983


key phaser where is use and work

1954


what is the vital subject for scoring bhel exam&what is the question pattern

2382