why are use only 4 to 20ma. signal.

Answer Posted / hari

In industry we using 4 to 20 MA b'cuz drop of voltage will
less ...the signal will transmit long distance ..so sme
kind of drop voltage will there ..

Is This Answer Correct ?    2 Yes 4 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

I want to know about DDCMIS in detail ? please explain it. Also give name of reference books in which it is explained in detail in very simple manner.

3299


in mass flow meter what is drive friquancy ?

1619


how works encoder in plc

1582


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

1978


How to measure the dust in chimney(spm)?

3614






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

732


where cascade loop use ?

1308


what is the electrical operation procedure for switching on 27.6MVA electric furnace.

1602


What is the procedure of calibration of Load cell?

1485


what should he know if he is an assitent engineer instrumentation in cement industries of experience of 10 - 15 year.

1619


Tell me the field calibration procedure step by step with diagram of pressure gauge, pressure switch, pressure transmitter, temperature switch, level switch, flow switch, flow transmitter.

2705


Please can anybody help for control valve sizing step by step procedure?

1635


Which products are available in the Mass Systemswitch and System Manager AC range?

1490


In a gas over oil actuator, after the opening/closing of valve, how the gas is vented out? How does the hydraulic/gas circuit function?

1376


What types of Instrumentation Related Questions can an Interviewer ask in a Telephonic Interview ?

2047