Emerson’s New Gas Analyzer Offers Hybrid Device Certified for Hazardous Areas

Emerson announced the release of its Rosemount QX1400 Continuous Gas Analyzer 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 Analyzer, but is certified for 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 stringent performance requirements. O₂ detection is particularly important for LNG, carbon capture and underground storage (CCUS), ethylene purity, hydrogen purity and many other chemical and petrochemical applications and these applications often include many hazardous areas. This hybrid integration of different technologies and a modular approach provides a flexible, single-system solution tailored to diverse application needs. The Rosemount QX1400’s was designed with low maintenance requirements that also reduce lifecycle cost and downtime.

The certified Rosemount QX1400 can be installed in certain hazardous areas without additional protective measures, such as installation in explosion-proof or purged enclosures. This capability reduces the cost and design complexity and maximizes installation uptime and enhances safety. In some applications, it can be installed closer to the sampling point to reduce cost and provide more accurate measurements. Applications that often require gas analysis in hazardous areas include CEMS, liquified natural gas (LNG) facilities, chemical and petrochemical plants, and many others.

Leveraging the intrinsic high selectivity of laser-based measurement, this new analyzer 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. Measurement of additional gases, such as CH₄ and N₂O, is also available.

The Rosemount QX1400 expands Emerson’s QX analyzer portfolio with hazardous-area capability and flexible multicomponent measurement in a single platform. Learn more about the analyzer, available gas configurations and application options at Emerson.com/RosemountQX1400.