Perten Instruments offers a version of the Rapid Visco Analyser: the RVA 4800 with an extended temperature range up to 140°C.
The RVA 4800 instrument performs analyses for a variety of applications such as ingredient performance (e.g. starches and hydrocolloids) under conditions relevant to ultra-high-temperature (UHT) pasteurization of dairy and food products, retorting, pressure cooking, extrusion and other aseptic processing conditions. The RVA 4800 model can also perform all traditional RVA tests.
The RVA 4800 instrument measures ingredient and food performance. As with previous RVA models, temperature and stirring speed (shear) can be programmed to follow international standard methods or custom methods. It can also be used as a miniature pilot plant to mimic real-world manufacturing and preparation processes such as heating, cooling, and mixing. The RVA 4800 interfaces with a PC and Thermocline for Windows (TCW3) software for operation and data management and includes a library of methods for many applications. The RVA is a tool for research, product development, process monitoring, QC and QA to optimize ingredient use, product formulation, and monitoring processing conditions.