These are highly automated units with capacity to control and monitor in real time the fusion process of one or two samples simultaneously thanks to its exclusive constant temperature check system using optical pyrometers. The heating by electric induction in the F series represents a major technological progress in fusion units, as it is more precise, quicker, cleaner, and more reliable. It enables the user to reach high temperatures in just a few seconds and to effectively control the fusion temperature. A stirring system keeps the sample in continuous motion during the heating process to ensure an excellent homogenization of the same. The units have got 50 fusion and oxidation programs, all customizable, two cooling systems, one magnetic stirring system to stir solutions, and a gas extraction system. One or several units can be controlled from the same control unit.