Online Ammonia Gas Analyzer
Measurement principle
The HH-5200 online ammonia gas analyzer (NH3, NO, O2) is based on the principles of Tunable Diode Laser Absorption Spectroscopy (TDLAS) and Ultraviolet Differential Optical Absorption Spectroscopy (DOAS).
- Product Introduction
Measurement principle
The HH-5200 online ammonia gas analyzer (NH3, NO, O2) is based on the principles of Tunable Diode Laser Absorption Spectroscopy (TDLAS) and Ultraviolet Differential Optical Absorption Spectroscopy (DOAS). The system consists of three main components: pretreatment, gas analysis module, and data processing and display. The measured gas undergoes dust and moisture removal via a high-temperature sampling probe, is transported through a heated pipeline, and enters the high-temperature gas analyzer module (TDLAS+DOAS) for analysis and measurement. This effectively addresses technical challenges such as ammonium salt crystallization blocking flow paths at low temperatures, measurement accuracy deviation caused by NH3 dissolution due to condensed water, and seamless measurement issues resulting from high dust attenuation in the optical path of in-situ systems.
Technical parameter
|
Measurement technology |
Tunable Diode Laser Absorption Spectroscopy (TDLAS); Ultraviolet Differential Optical Absorption Spectroscopy (DOAS); Zirconia Oxide |
||
|
Measurement range |
NH3：(0~10~1000)ppm; NO ：(0~50~1000_ppm;O2：(0~25)% |
||
|
Detection limit |
0.1ppm( 10m optical path length) |
Linear error |
≤±1%F.S. |
|
Repetitiveness |
≤ 1% |
Zero drift |
≤±1%F.S. /half a year |
|
Range drift |
≤±1%F.S./half a year |
Response time |
＜90s |
|
Analog output |
5 channels (4-20)mA output |
Analog input |
3 channels (4-20)mA input |
|
Digital communication |
RS485/RS232 |
Purge gas source |
(0.4 ~ 0.8) MPa purified instrument air |
Technical characteristics
1. Avoid background gas interference, low detection limit, and minimal range drift;
2. Maintain trace heating above 180 degrees to prevent ammonium salt crystallization and moisture absorption;
3. Compact mechanism, easy installation, and low maintenance cost;
4. Multi-parameter integration for measuring multiple components.
Application field
The online ammonia gas analyzer is suitable for ammonia slip emission monitoring and process control in SCR or SNCR denitrification devices, including coal-fired power plants, aluminum plants, steel plants, smelters, glass factories, waste-to-energy plants, etc.
Hot Tags: Online Ammonia Gas Analyzer, China Online Ammonia Gas Analyzer manufacturers, factory, respiratory gas analyzer, 5 gas analyzer, gas analyzer in cement plant, gas composition analyzer, hf analyzer, Cems Analyzer
