GCEM40 Series In-Situ Flue Gas Analyser
Direct, Uncompromised Flue Gas Analysis in the Harshest Stack Environments
The GCEM40 series redefines continuous emissions monitoring by delivering highly accurate, multi-species infrared absorption analysis directly within the flue gas stream. Utilising a field-proven in-situ 316L stainless steel probe, this CEMS completely eliminates the maintenance headaches associated with heated sample lines and extractive conditioning systems.
Capable of performing in dust loads exceeding several grams/m³, the analyser leverages NDIR gas filter correlation to eliminate cross-sensitivity while measuring CO, NO, NO2, NOx, SO2, CH4, HCl, CO2, and H2O. Integral temperature and pressure sensors enable direct on-board data normalisation to mg/Nm³, ensuring rigorous compliance with EN15267 standards.
Industrial Applications of GCEM40
Expertly engineered for Large Combustion Plants, Power Generation, Renewable Energy, Flue-Gas Desulfurization (FGD), SCR and SNCR Processes, Energy From Waste, Steel Plants, Glass Manufacturing, and Chemical Plants.
- In-Situ 316L Stainless Steel Probe: Measures gases directly inside the stack, removing the need for costly heated sample lines, chillers, or sample pumps, even in high-dust applications.
- NDIR Gas Filter Correlation: Utilises advanced infrared spectroscopy to target specific gas species, entirely preventing false readings caused by cross-sensitivity to other flue gas contaminants.
- Automated Zero/Span Calibration: Injects dry compressed air automatically every 24 hours to verify zero calibration and clean the probe filters, drastically reducing scheduled maintenance hours.
- Integral Normalisation Sensors: Built-in probe temperature, pressure, and H2O sensors automatically calculate and output fully normalised environmental data in mg/Nm³.
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DCEM2100Frequently Asked Questions
Yes. The in-situ probe design enables accurate measurements even in very high dust levels exceeding several grams/m³. For constant dust loading over 400mg, an optional dust shield is available.
The analyser performs an automatic zero calibration every 24 hours by injecting clean, dry compressed air to verify the baseline and back-purge the probe filters. Span gas can also be injected via remotely mounted pneumatics to verify instrument response.
The GCEM40 system requires dry and oil-free compressed air. It uses 20 liters/min at 4 bar for calibration and back-purging sequences, and 2 liters/min at 4 bar during normal operation.
Yes. Because all models are fitted with a probe-mounted temperature sensor—and can optionally measure pressure, CO2, and H2O—the analyser performs on-board normalization to compute and output data directly in mg/Nm³.
The system mounts directly to the stack via a standard flange. Its in-situ design means there are no heated sample lines to route or separate gas conditioning cabinets to install, drastically simplifying integration.
