BME Systems doubled the number of fermentation units that could be analyzed by an industrial mass spectrometer using valves to multiplex off-gas streams that could be sampled at a lower rate. The valve sets, mass spectrometer and data routing are controlled by an existing SCADA (Supervisory Control and Data Acquisition) system with code additions.

 This solution was implemented at a third of the cost and half the space of an additional mass spectrometer.