A flow rate by lose of mass (flow: g/min. or g/hours) with the balance reading?

[Raj RoH]

I am using a Mettler Toledo balances to feed a reactor. Balance vi gives me actual (current) weight. How do I get a flow rate by lose of mass (flow: g/min. or g/hours) with this balance reading?

[johnsold]

Put the current reading in a shift register. Subtract it from the previous reading. Divide by the time between the readings.

This type differentiation tends to be noisy so you may need to do some smooothing of the data.

Lynn