The Sigma Air Manager (SAM) 4.0 (photo) is a core control component of a blower station and enables users to take advantage of Industry 4.0 services. It acts as the central controller and controls individual machines with maximum efficiency while precisely adjusting the flow capacity to match flowrate demand. The only required input from the process control system is the desired differential pressure value — the SAM 4.0 then ensures optimal control of all blowers. Partial-load bridging and individual solutions are therefore obsolete, along with complicated setups. Now, all applications are supplied by one central blower station with a master controller that analyses operating data in seconds and simulates various scenarios in order to select the most efficient solution. — Kaeser Kompressoren SE, Coburg, Germany