How much liquid CO2 is consumed by Gerstel PTV (Programmed Temperature Vaporizer) just to cool the inlet to -20C?

We recently purchased a Gerstel PTV (Programmed Temperature Vaporizer with septum head and Liquid CO2 cooling). I am trying to use an application on page A -19 of the Gerstel application notes...

09 September 2013 7,239 2 View