Emerson has released the Rosemount QX1400 Continuous Gas Analyser for natural gas quality monitoring, continuous emissions monitoring system (CEMS), and other demanding applications
The Rosemount QX1400 uses the same hybrid laser-based and paramagnetic measurement technologies as the Rosemount QX1000 Continuous Gas Analyser and includes certifications that allow its use in hazardous areas. For Europe, these certifications include ATEX II 2G Ex d IIB H2 T4 and R.O.W: IECEx Ex db IIB+H2 T4 Gb. North American certification is expected by the end of 2026 for Class 1, Division 2, Groups B, C, D, T4.
The Rosemount QX1400 uses paramagnetic detection for O2 and quantum cascade laser direct absorption spectroscopy for all other gases to meet performance requirements. O2 detection is critical for LNG, carbon capture and underground storage (CCUS), ethylene, hydrogen purity, and other chemical and petrochemical applications.
This hybrid integration of different technologies and a modular approach provides a flexible, single-system solution for diverse application needs. The Rosemount QX1400’s robust design with low maintenance requirements also minimises lifecycle cost and downtime.
The Rosemount QX1400’s certifications enable installation in certain hazardous areas without protective measures such as explosion-proof or purged enclosures. This capability reduces design and installation cost and complexity, maximising uptime and enhancing safety. In some applications, it can be installed closer to the sampling point to reduce cost and improve measurement accuracy. Applications that often require gas analysis in hazardous areas include CEMS, liquefied natural gas (LNG) facilities, chemical and petrochemical plants, and more.
Dr Beth Livingstone, global product manager, Process Gas, said, “Gas analysis applications should not require users to choose between the measurement technology they need and the hazardous-area installation their site demands. The Rosemount QX1400 brings complementary technologies together in one certified platform to simplify system design, while providing the measurements required for critical emissions, quality and purity applications.”
Using the intrinsic selectivity of laser-based measurement, this new analyser provides precise monitoring of complex gas streams while delivering continuous, real-time data. Off the shelf, it supports multicomponent measurement of key regulatory gases, including CO, CO2, O2, NO, NO2, and SO2, with different configurations typically offering detection of one to four gases. It can also measure additional gases, such as CH4 and N2O.
The Rosemount QX1400 expands Emerson’s QX analyser portfolio with hazardous-area capability and flexible multicomponent measurement on a single platform.
