This paper presents several schemes proposed for the experimental installation (EI) for the preparation of under or over-oxygenated breathing gaseous mixtures, which underpin the completion of the functional modelling documentation for the EI, depending on the operational necessities imposed by the extensive diving processes (respectively: dives compression and decompression, processes executed during professional dives, in the hyperbaric chambers of the Hyperbaric Lab. of the Diving Center, or

more »

... real - in the marine environment). An equivalent scheme regarding the evolution of the parameters of the component pure gases for each plant branch are also presented. The installation can be used in unitary diving (with surface feed or local preparation of the breathing mixtures) or in system diving, inside the Hyperbaric Laboratory or on board of the diving vessels, during real or simulated diving for a continuous-flow preparation of the synthetic, under or over oxygenated, binary or ternary gas mixtures, specific to professional diving, in order to facilitate the team work which covers the surface or in order to increase the yield of diving.