I suggest you to use ultrasonics rather than radar or load cells. Radar are a very precise devices and are very expensive because of that. You said you don´t need it to be very much accurate. Load cells are good but the work for installation and tuning a load cell in a tank very big is also very...
Dear Finite:
Well, as some people has told in this forum there's a very explicit way to size a pump for any kind of fluid you are involved with. The case of pumping chocolate or cooca mass is not as particular as we can think. Chocolate is Bingham's type Fluid and below a shear stress it...