AO to DI converter for pressure measurement

[skatta3]

 I purchased a Digital Input module NI 9422 for measuring pressure using pressure transducer. However, as I understand pressure transducer generate a 4-20 mA analog output , I cannot use DI input module. Is there any way that I can use a AI to DI converter and still use the module?

[mikeporter]

No clean way. You could see if NI would let you exchange the card.

Mike...

[GerdW]

Hi skatta,

why do you bought that DI module at all?

While it is better to exchange this module to an AI module you could grab your soldering iron, a little standard pcb and a cheap 8bit ADC IC like the AD670. That way you can still use your NI9422 module to read in the pressure value…