Hi all! I wonder if anyone knows of a simple way for me to convert the signal from one of our instruments (0-2 V, resolution of 1 mV) to a 4-20 mA signal so that we can use our current PLC configuration. (Modifying the PLC would be about $770 - cheap by some standards, but cheaper is better!) Input impedance must be 1 MegOhm at least.
I contacted a company who said they would be happy to make me a custom card for $1200 that would convert 0-2V to 0-20 mA but then I lose the bottom 20% of my data since the card wouldn't register anything below 4 mA!
Thanks for your help!
I contacted a company who said they would be happy to make me a custom card for $1200 that would convert 0-2V to 0-20 mA but then I lose the bottom 20% of my data since the card wouldn't register anything below 4 mA!
Thanks for your help!