Key Features

• UV-DOAS measurement technology: Uses Ultraviolet Differential Optical Absorption Spectroscopy for continuous SO₂ measurement.
• PLS and chemometric analysis: Uses Partial Least Squares and spectral algorithms to improve gas concentration calculation in complex gas mixtures.
• High measurement accuracy: Provides accurate and reliable SO₂ concentration measurement for industrial emission and process monitoring.
• Fast response: The UV platform provides rapid response to concentration changes, supporting real-time monitoring. The UV-GAS-100M module specifies a response time below 25 seconds, while configured UV-GAS-500 systems vary by range and application.
• Wide measurement range: Supports standard, low-emission, and ultra-low-emission SO₂ ranges. ESEGAS lists ranges from 0–50 ppm for ultra-low-emission applications up to several thousand ppm for standard industrial monitoring.
• Multi-gas capability: The UV optical platform can measure SO₂ together with gases such as NO, NO₂, NH₃, Cl₂, O₃, and H₂S, depending on the configuration.
• Low detection limit: Long optical-path and UV absorption technology support low-concentration SO₂ measurement.
• Low temperature drift: ESEGAS highlights small temperature drift and stable measurement performance in its UV-DOAS platform.
• Reduced water and dust interference: ESEGAS states that its UV absorption and chemometric approach reduces the influence of water vapor and dust on measurement accuracy.
• High reliability: The optical platform has no moving optical parts in the UV sensor module, helping improve long-term reliability and maintenance performance.
• Continuous online monitoring: Provides real-time SO₂ concentration data for emission control, environmental monitoring, and industrial process optimization.
• CEMS integration: Suitable for Continuous Emission Monitoring Systems in power plants, industrial combustion, and waste incineration.
• DeSOx process monitoring: Can be used for desulfurization process control by continuously measuring SO₂ and, in configured systems, O₂.
• Sulfur recovery monitoring: Suitable for sulfur recovery process gas analysis, including SO₂ and H₂S measurement.
• Air quality monitoring: Can be configured for online monitoring of SO₂, NO₂, O₃, and other UV-absorbing gases.
• Wide industrial applications: Suitable for power plants, waste incineration, sulfur recovery, industrial emission monitoring, and ambient air monitoring.

Industry

SO2 analyzers are essential tools for environmental monitoring, emissions control, and occupational safety. We provide them in various industries, including power plants, refineries, chemical manufacturing, and air quality monitoring stations. By providing accurate and real-time measurements of SO2 concentrations, these analyzers help ensure regulatory compliance, assess pollution levels, and enable the implementation of effective control measures to reduce sulfur dioxide emissions.

Our model UV-GAS-500 model can measure SO2 based on DOAS and PLS,able to measure the concentration of gases including SO2, NO2, NO, NH3, Cl2, O3, H2S, etc.It has features of high measurement accuracy,outstanding,reliablility,fast response time and wide applicable scope

Applications:

☑ Flue gas continuous emission monitoring (CEMS) for the power plants

☑ DeSOx process monitoring (analyze SO2 and O2)

☑ Waste incineration flue gas continuous emission monitoring (analyze SO2, NO, NO2 and O2)

☑ Sulfur recovery process gas analysis (analyze SO2 and H2S)

☑ On-line air monitoring (analyze SO2,NO2 and O3)

Importance of SO2 gas analyzer 

Environmental Monitoring : Sulfur dioxide (SO2) is a major air pollutant emitted from various industrial processes, power plants, and combustion of fossil fuels. It contributes to the formation of acid rain, smog, and particulate matter, which have detrimental effects on ecosystems and human health. An SO2 gas analyzer plays a vital role in monitoring and assessing ambient air quality to ensure compliance with environmental regulations and identify areas that require pollution control measures.

Health Impact Assessment : Exposure to high levels of SO2 can have severe health effects on humans. It can irritate the respiratory system, leading to breathing difficulties, exacerbation of asthma, and other respiratory ailments. Long-term exposure to elevated SO2 levels has been linked to chronic rIespiratory diseases and cardiovascular problems. By accurately measuring SO2 concentrations, gas analyzers help assess potential health risks and provide valuable data for public health officials and policymakers.

Emissions Control : Industries that emit sulfur dioxide are often subject to regulatory limits on their emissions. SO2 gas analyzers enable real-time monitoring of emissions from power plants, industrial facilities, and other sources. By providing accurate and timely measurements, these analyzers help industries ensure compliance with emission standards, optimize combustion processes, and implement effective pollution control measures such as scrubbers, catalytic converters, and flue gas desulfurization systems.

Process Optimization : In industrial processes where SO2 is involved, such as sulfuric acid production and metal smelting, the accurate measurement of SO2 concentrations is essential for process optimization. By continuously monitoring SO2 levels, gas analyzers help maintain process efficiency, minimize waste, and improve overall productivity.

Occupational Safety : Workers in industries where SO2 may be present, such as mining, chemical manufacturing, and refining, face potential health risks. An SO2 gas analyzer enables the monitoring of SO2 levels in work environments, ensuring that exposure remains within safe limits. This information helps employers implement proper ventilation systems, personal protective equipment (PPE), and other safety measures to protect workers’ health and well-being.

Overall, an SO2 gas analyzer is important for environmental protection, public health, regulatory compliance, and workplace safety. It enables the monitoring and control of sulfur dioxide emissions, facilitates the assessment of health risks, and aids in the optimization of industrial processes to minimize environmental impact and protect human health.