Tracking total consumed air based on litres per minute problem

[toweroak]

Hello

I require assistance

I'm reading a signal into my program which represents litres per minute (L/m) flowing past a flow sensor. I wish to have an output that tracks the current total air that has passed through the flow sensor.

Example: Flow is around 2 L/m after 4 minutes the output should show 8 litres.

I have a feeling that it has something to do with integating the signal but I can't seem to get it to work.

I tried using Integral x(t) PtbyPt.vi

x: Flow sensor signal

initial condition: 0

dt: 1

[clarkleach]

total = total + flow/(samples per minute) ?

[crossrulz]

What is your sample rate really?  If you are getting data once a minute, then you can just use the Sum PtByPt VI instead.