CVMS °Climatic produces a 2-zone and a 3-zone thermal shock
chamber. The conventional 2-zone comprises a hot and a cold chamber with
the test item moving between the two by way of a mechanical lift. The
3-zone has the test item in a central ‘ambient’ chamber with the hot and cold
air generated and stored in adjacent chambers. At the appropriate time
the hot (or cold) air is directed into the ambient zone sequentially according
to the programme thus providing the thermal shock