kurt.brinker
New Member
I am looking to create a variable 4-20mA signal using a 24V power supply. I figured that with a constant 24V, i would need 6000 ohms of resistance for 4mA,2000 ohms of resistance for 12mA and 1200 ohms of resistance for 20mA. I should be able to just use a variable resistor/trim pot to accomplish this right?
I did some searching and all of the schematics seem to have way more components than just a pot.
my question is will my way work and is there any reason not to do it this way. Its just for testing.
I did some searching and all of the schematics seem to have way more components than just a pot.
my question is will my way work and is there any reason not to do it this way. Its just for testing.