AELAB AQMS-500 Sulfur Dioxide Analyzer – Accurate SO₂ Monitoring System

The AELAB AQMS-500 Sulfur Dioxide Analyzer provides accurate quantification of SO₂ concentrations in ambient or industrial air through UV fluorescence detection. This instrument is essential for continuous air quality monitoring, compliance with environmental emission standards, and analytical studies on sulfur oxide pollution. With precision in the sub-ppb range, the AQMS-500 ensures reliable and reproducible performance in regulatory and research environments.

⚙ Design & Construction

The AELAB AQMS-500 is designed with a corrosion-resistant enclosure and internal critical orifices for flow stability. A large digital display and user-friendly control interface allow real-time visualization of SO₂ levels and system parameters. The integrated temperature and pressure compensation maintains data integrity under varying atmospheric conditions. Compact dimensions and modular components facilitate installation in both field stations and laboratory setups.

🔬 Working Principle / Testing Method

The AQMS-500 operates on the UV fluorescence principle. Sulfur dioxide molecules in the sampled air absorb ultraviolet radiation and subsequently emit fluorescence proportional to their concentration. This emitted light is detected and converted into an electrical signal by a photomultiplier tube (PMT). The microprocessor then calculates the corresponding SO₂ concentration, automatically correcting for background light, pressure, and temperature fluctuations to ensure consistent accuracy.

💡 Key Advantages

• Compliant with U.S. EPA reference methods for sulfur dioxide monitoring.
• Ultra-low detection limit of 0.5 ppb ensures sensitivity for trace-level analysis.
• Multi-tasking software enables simultaneous operation and data viewing.
• Critical orifices ensure stable sample flow and long-term reliability.
• Built-in data logging for intervals from 1 minute to 365 days.
• Multiple digital and analog outputs for versatile system integration.
• Automatic temperature and pressure compensation for consistent measurement.

🔗 Connectivity & Integration

The AELAB AQMS-500 offers comprehensive connectivity through RS232, RS485, and Ethernet interfaces. These outputs enable integration with air quality monitoring networks, SCADA systems, and LIMS databases. Real-time data can be transmitted remotely for centralized analysis and compliance documentation. The analyzer supports analog outputs and relay alarms for control automation and safety protocols.

🧠 Model Insight

The AQMS-500 series is engineered for long-term ambient and industrial SO₂ monitoring. Optional configurations include extended data storage and advanced communication modules for networked systems. Its high-precision optical chamber and robust photomultiplier system deliver dependable readings in diverse environmental conditions. AELAB’s quality assurance ensures that each AQMS-500 unit performs consistently across field deployments.

🧪 Testing Applications

• Governmental and NGO air quality monitoring stations.
• Industrial emission control in power generation and refining plants.
• Chemical and petrochemical process monitoring for SO₂ release tracking.
• Environmental research laboratories performing atmospheric pollution studies.
• Educational institutions teaching environmental and analytical chemistry.

Compliance & Quality Assurance

The AELAB AQMS-500 Sulfur Dioxide Analyzer meets ISO 9001 and EPA reference method requirements for ambient SO₂ monitoring. Each analyzer is factory-calibrated and traceable to certified gas standards, ensuring data accuracy and reproducibility. The instrument undergoes full functional testing prior to dispatch and complies with GLP and CE safety standards for laboratory and field operation.