Instrument Principle
This instrument adopts the ultraviolet absorption method. The basic working principle is: ozone can absorb ultraviolet light at a certain wavelength (254nm), and the strength of absorption is related to its concentration. Detection method: ultraviolet light at 254nm wavelength irradiates the reaction chamber. Using a photoelectric detector, the light intensity of the sample gas (atmosphere containing ozone) and reference gas (atmosphere with ozone removed) passing through the reaction chamber is measured respectively. The light intensity ratio of the two is calculated, and the concentration of O₃ in the sample gas is obtained using the Lambert-Beer law.
Instrument Features
• Adopts 7-inch full-touch color screen, monitoring values can be switched freely between ppb, ppm, μg/m³, mg/m³;
• Chinese and English menu-style operation interface, easy to operate;
• With automatic range switching function;
• Monitoring values can be displayed graphically, and graphic curves can be freely zoomed;
• With automatic temperature and pressure compensation function;
• Adopts adaptive optimization algorithm to achieve optimal response time and signal-to-noise ratio;
• Supports remote calibration and remote diagnosis of internal working parameters;
• Massive historical data storage, query and output functions (one record every 5 minutes);
• With multi-parameter alarm function;
• All valves and fittings are made of TEFLON to minimize impact on measurement results;
• AC/DC dual power supply, one charge can be used for more than 10 hours;
• Can be preheated in advance, ready for rapid monitoring upon arrival at the site;
• Suitable for emergency monitoring and comparison monitoring.
