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The LY-3023Y UV DOAS flue gas analyzer is an integrated high-precision environmental monitoring instrument developed with advanced UV differential absorption spectroscopy (DOAS) technology and full-process thermal wet measurement methodology. Purpose-built for industrial operators and environmental compliance teams, this analyzer delivers accurate on-site detection and quantitative analysis of multiple pollutant concentrations in stationary source emissions, including SO₂, NO, NO₂, NH₃, CO, CO₂ and O₂. It is uniquely optimized for flue gas component analysis and ammonia slip monitoring in high-humidity environments, making it ideal for low-concentration emission scenarios from boilers, flues and industrial kilns.
Leveraging industry-leading UV differential absorption spectroscopy technology, the analyzer delivers exceptional anti-interference performance, eliminating measurement deviations caused by flue gas moisture and dust. This ensures stable and reliable data even in harsh, high-particulate industrial environments.
Adopting full heat-tracing thermal wet method, the system avoids absorption loss of target gases by liquid water throughout the measurement process, drastically improving the accuracy of low-concentration flue gas monitoring in high-humidity working conditions. It also provides real-time flue gas humidity measurement, with simultaneous display and recording of both dry-base and wet-base concentration data.
The highly integrated all-in-one design eliminates complex pipeline connections, enabling rapid deployment in field testing scenarios. A built-in high-capacity lithium battery supports long-term on-site sampling, while an independent hand controller with wireless host control delivers enhanced portability and operational convenience.
The instrument is equipped with comprehensive fault detection and alarm functions, enabling real-time self-diagnosis to simplify routine maintenance and troubleshooting for on-site teams. It also supports synchronous measurement of flue gas dynamic pressure, static pressure, temperature and flow rate via a dedicated pressure pipe.
The LY-3023Y UV DOAS flue gas analyzer is officially selected into the National Encouraged Environmental Protection Equipment Catalogue 2025. It fully complies with national and international stationary source emission monitoring standards, including relevant USEPA methods and EN environmental monitoring specifications, ensuring full alignment with global industrial emission compliance requirements.
Main Parameter | Sub-item | Parameter Range |
Flue-gas Temperature | - | (0-500) ℃ (scalable) |
Flue gas Velocity | - | (1 ~45) m/s |
Vaporous Pneumatic Pressure | - | (0 ~2000) Pa |
Flue Gas Static Pressure | - | (-30 ~ +30) kPa |
Atmospheric Pressure | - | (50~130) kPa |
Flue Gas Concentration | SO2 | Low range: (0150) μmol/mol or (0430)mg/m³ |
Flue Gas Concentration | NO | (0~1000) μmol/mol or (01340)mg/m³ |
Flue Gas Concentration | NO2 | (0~500) μmol/mol or (01030)mg/m³ |
Flue Gas Concentration | O2 | (0 ~ 30)% |
Flue Gas Concentration | CO (optional) | (0~4000) μmol/mol or (05000)mg/m³ |
Flue Gas Concentration | CO2 (optional) | (0 ~ 20)% |
Flue Gas Concentration | NH3 (optional) | (0~263) μmol/mol or (0200)mg/m³ |
Flue Gas Concentration | H2S (optional) | (0~200) μmol/mol or (0300)mg/m³ |
- | Flue Humidity | (0~40) % |
Quantitative determination of emission concentration, standardized concentration and total emission of harmful gases (SO₂, NOₓ, etc.) from stationary pollution sources
Real-time monitoring of flue gas emission parameters, moisture content, oxygen content and excess air coefficient
Ammonia slip monitoring for denitrification systems
Accuracy evaluation and calibration of continuous flue gas monitoring systems (CEMS)
On-site environmental compliance inspection and emission verification
Thermal power generation, steel & metallurgy, petrochemical, cement manufacturing, waste incineration, non-ferrous metal processing, and third-party environmental testing service providers.
As a professional environmental monitoring solution provider, Lonying delivers end-to-end support for industrial and commercial clients. We offer a 12-month quality warranty for all standard products, with free repair and replacement for manufacturing defects. Standard models have a lead time of 10-20 business days, with flexible customization options for tailored project requirements. We also provide on-site case inspections and short-term trial testing for key projects, backed by a professional after-sales team with industry-leading maintenance expertise.
We provide a 12-month quality assurance period for standard products starting from the date of equipment acceptance. The warranty covers malfunctions caused by material or manufacturing defects, with free repair or replacement services provided.
Yes. The instrument adopts a full-process thermal wet measurement design with full heat tracing, which eliminates gas absorption loss caused by condensed water, ensuring high-precision measurement even in high-humidity, low-concentration emission scenarios.
For standard models, the delivery period is 10-20 business days, covering production, assembly, full-machine testing and calibration. Customized orders will have an adjusted timeline confirmed via formal contract.
