Ammonia gas online monitoring system

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The ammonia gas online monitoring system is an integrated product based on Tunable Diode Laser Absorption Spectroscopy (TDLAS) technology. It is suitable for continuous online sampling and monitoring of ammonia gas in various industrial environments such as thermal power generation, building materials production, the chemical industry, metallurgy, and waste treatment. It provides accurate and reliable data for optimizing process control as well as for achieving energy savings and emission reduction. ● Using TDLAS technology, it is unaffected by background gases, dust, vibrations, etc. ● A proximal sampling method with full-length heating is employed to effectively control the sampling distance and the heating temperature, thereby preventing ammonia loss. ● A multiple reflection cell design is employed, with an effective optical path length of >13m, to improve the system’s detection limit. ● Optical devices are easy to maintain. ● Integrated structural design for easy installation. ● An intuitive user interface with a touchscreen design for easy operation and querying. ● It has an instrument self-check function. Measurement principle: Tunable Diode Laser Absorption Spectroscopy (TDLAS). Components measured: NH3 (CO, O2, HCl, etc. can also be measured). Range: 0–50 ppm (other ranges can be customized). Reading error: ≤±2% of full scale. Repeatability: ≤2%. Zero drift: ≤±2% of full scale. Range drift: ≤±2% of full scale. Response time: ≤3 seconds