4-20ma testers4 - 20 ma tester4-20ma tester4-20ma loop teste

[saeed_pk]

4-20 ma current loop

Dear All;
I have a wind sensor i need to interface it with a logger whose input is 4-20 mA type. my sensor gives 0-10 v o/p i want to convert it to 4-20 mA loop so it can be interfaced with my system.


Please Help in this regard.

 

[IanP]

0-1 ma and 4-20 ma input circuit

Have a look at the attached circuit ..
All what you have to do is to reduce the input signal (2-resistor voltage divider) from 0-10 to 0-1, or change the resistor ratio in the first stage ..

Rgds,
IanP

 

[xxtigerxx]

4-20ma current loop

Dear saeed the above circuit works fine..

i have test my self..

 

[ZEALOD]

4-20 ma current loop test circuit

Take a look of AD694. https://www.analog.com/en/amplifier...tation-amplifiers/ad694/products/product.html
I think that this is the easiest way -only one IC and little external components.