In this video, Brooks Instrument proudly presents the theory of operation behind our pressure-based mass flow controller (P-MFC), from our GP200 series. This P-MFC has a unique design approach for enhanced process performance without the limitations of today's traditional P-MFCs. A traditional P-MFC approach includes an upstream pressure transducer, an upstream control valve, two individual pressure transducers, and laminar flow element. The use of an upstream valve has many disadvantages. This design requires high pressure making it sub-optimal for critical low pressure gases and low full scale flow rate. This also means that the two individual pressure transducers must be perfectly matched. We can do better! To address the disadvantages, Brooks Instrument designed a patented integrated differential pressure transducer, GP200 P-MFC. The GP200 has one true differential transducer, instead of two, eliminating the need to match the two individual pressure transducers. This greatly reduces measurement uncertainty and improves accuracy particularly for critical low vapor pressure process gases. It's downstream valve architecture will operate at much lower inlet pressures and across a wider range of pressures. The downstream valve also minimizes the bleed down effect and ensures that the device is insensitivity to dynamic outlet conditions. Check out the Brooks Instrument GP200 experience.bro...