The Datapaq Furnace Tracker automatically generates CQI-9 and AMS 2750E reports for aluminum vacuum brazing furnaces. The data logger traces product temperature profiles via 10 thermocouples throughout all process phases. Thermal protection is provided by a phase-change heat sink and a thermal barrier consisting of nine stainless steel and aluminum reflective plates with a ceramic outer coating. The Datapaq VB1150 vacuum barrier protects the logger for 3.5 hours at 1112°F (600°C), and the maximum operating temperature is 1292°F (700°C). After only 45 minutes of cooling down, the system is ready to be reused.