Why we use 4 to 20 mA, (This is International Standard)
instaed of this can we use 4-16, or 4-24 or 3- 15 or any
other range

Answer Posted / abdus sattar mollah

ALL ANSWERS ARE WRONG.....
4-20 is a standard because transistor which is the basic building block of any transmitter has a linear output charecteristics in 4-20ma range.

Is This Answer Correct ?    4 Yes 8 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is Erosion in a control valve?

1563


How signals can be taken through modbus?

683


can we replace a slot sensor (inductive type) with limit switch (potenial free contact / no-nc type).

1597


why orfice is not used for main steam flow calculation

1603


How can i copy program (parameter) from mm440 (V.F.D.) by using BOP?

2284






How earthing can be checked????

1968


Speedtronic system .

1533


how to calculate control valve bonnet size?? or how to select its material?

1953


Explain PID, ON/OFF, Controls

1581


How will you calibrate PID controller? explain with example.

1966


Please tell me details about Sox,Nox,SWAS analyser????

3279


Valve positioner and actuators in detail.

1385


Which type of pressure can be measured by primary elements?

610


i am preparing for BARC ,so plz mail me how to prepare for BARC. ALSO IF POSIBLE SOME RELATED QUESTIONS. MY MAIL ID IS khushi_4uall2003@yahoo.co.in

2552


In bently nevada vibration monitoring system,what is the reason to maintain the Resistance of the probe + extension cable equal to 95 ohm? If possible explain the basic principle of measurement with detail electronic circuits.

2484