Marathon Monitors Inc., a member of United Process Controls (UPC), recently completed the installation of a new oxygen monitoring and controlling system for a Consteel® line in Knoxville, Tenn. This system replaces the existing system with state-of-the-art, real-time control capability. In-situ oxygen analyzers are used to measure and control the correct amount of air addition to the preheat section. Continuous oxygen monitoring improves the consistency of scrap throughput, helps in controlling the final temperature of the scrap, reduces emissions in the exhaust gas and reduces excessive maintenance costs.

While monitoring has its benefits, the true return on investment is realized when oxygen is accurately controlled for optimized combustion. UPC is an alliance of four companies – Furnace Control, Marathon Monitors, Process-Electronic and Waukee Engineering – all with a strong presence in heat treating and combustion.