While sintering an oxygen portion is desired that is as low as possible, with a concurrent presence of a certain C potential. Both may be realized on the oxygen partial pressure with a measurement of oxygen by the interpretation of the corresponding gas components, like H2,H2O, CO, CO2. With success this method is tested for years
For it both can be used, inline measurement and extractive measurement. Inline measurement is used for the high-temperature zone and extractive measurement is used for cooling zone and lock chamber.