I'm using a pressure transmitter and ADC16 with Windows 95 to collect data on liquid level rising in a tube in a lab. After the fact I go back and use Excel to calculate the flowrate of liquid into the tube from the increase in level per time.
What hardware and software would I need to do this calculation online (while measuring it) and then output an analog signal (preferably 4-20 mA) to feed into a separate process controller? I haven't been able to find a standalone flow transmitter for this very low flow (5 mL/minute) of a corrosive liquid (it would dissolve stainless steel in a matter of hours). I assume I'd have to write some software to do this, but am not experienced in this area, so the simpler, the better.