LY-DOAS Ultralow Concentration Ultraviolet Differential Gas Measurement Optical Module Introduction: The ultra-low concentration ultraviolet differential gas measurement optical module uses ultraviolet differential absorption spectroscopy (DOAS) technology to simultaneously measure harmful gases such as SO2 and NOx. It has many advantages such as high measurement accuracy, fast measurement speed, simultaneous detection of multiple components, strong anti-interference ability, and low detection limit. It can be widely used in fields such as fixed pollution source exhaust gas analysis, mobile pollution source exhaust gas analysis, industrial process gas analysis, and laboratory gas analysis. characteristic: 1. Using UV differential absorption spectroscopy to detect the concentration of gases such as SO2, NO, and NO2 in real-time, without interference from water vapor or dust 2. Adopting self-developed deep UV spectrometer to optimize UV spectral response performance 3. Adopting low-power pulse xenon lamp light source, low power consumption, long service life, and short preheating time 4. The gas chamber adopts constant temperature control to ensure the accuracy and stability of the detection results 5. Directly detect NO2 without the need for a conversion furnace 6. Customizable range 7. The mechanical structure can be customized according to needs Technical parameters: Measurement gas: SO2; NO； NO2 Range: 0-300mg/m3; 0-150mg/m3； 0-200mg/m3； Customizable according to user needs Indication error: ≤ ± 2% FS Detection limit: ≤ 1mg/m3 Repeatability: ≤ 1% FS Zero drift: ≤ ± 2% FS/24h Range drift: ≤ ± 2% FS/24h Calibration: Provide zero point calibration and range calibration Response time: T90 ≤ 30 s@1L /min Working temperature: (0-40) ℃ Relative humidity: ≤ 95% RH Output signal: concentration value/original AD value Communication interface: either RS232/RS485 Power supply: DC12V/24V Power: less than 100W (during startup and preheating); Rated power less than 15W (during stable operation) Mechanical size: 300mm × 135mm × 115mm Weight:<1.6Kg
Introduction: The ultra-low concentration ultraviolet differential gas measurement optical module uses ultraviolet differential absorption spectroscopy (DOAS) technology to simultaneously measure harmful gases such as SO2 and NOx. It has many advantages such as high measurement accuracy, fast measurement speed, simultaneous detection of multiple components, strong anti-interference ability, and low detection limit. It can be widely used in fields such as fixed pollution source exhaust gas analysis, mobile pollution source exhaust gas analysis, industrial process gas analysis, and laboratory gas analysis.
