any body tell me why 4-20 ma use as a current any reason for this amount why n

any body tell me why 4-20 ma use as a current any reason
for this amount why not 3-25 ma?

Question Posted / nstailor810

1 Answers
4479 Views
I also Faced
E-Mail Answers

any body tell me why 4-20 ma use as a current any reason for this amount why not 3-25 ma? ..

Answer / kiran

Normally all field instruments have 250 ohm resistance,
& operated this instruments on 1-5 volt.
Sothat @ 4mA the volt = 1 volt &
@ 20mA volt = 5V.

Hence it expressed in 4-20mA.

Is This Answer Correct ?

7 Yes

0 No

Post New Answer

More Industrial Engineering Interview Questions

How important are statistics in industrial engineering?

1 Answers

what is mean by parkerizing ?

1 Answers L&T,

how do you adjust pump impeller clearance?

1 Answers

why data registers are needed in PLC ?

1 Answers Samtel,

What is fauit level

1 Answers

How we install and terminate the wire of pressure transmitter and temprature transmitter. Give full explanation.

1 Answers

DRAW IN BRIEF THE ORGANISATION STRUCTURE OF THE COMPANY WHERE YOU ARE PRESENTLY EMPLOYED / LAST EMPLOYED, INDICATING TWO LEVELS ABOVE AND ONE LEVEL BELOW YOUR POSITION

2 Answers HDFC, MetLife, Shyam Indus Power,

why we use log files in QTP?

1 Answers

how to find rmc plant MD?

1 Answers UltraTech,

how the calculation of faut current level

1 Answers ABB,

what is PIV related to diode

1 Answers

how can LED bulb indication work correctly without CT OR PT for 3 phase indication if one is cut then it will show the correct indication?

1 Answers UltraTech,

For more Industrial Engineering Interview Questions Click Here