EM-5 Flue Gas Analyzer

Overview Of EM-5 continuous flue gas analyzer
EM-5 series continuous flue online gas analyzer is a series of self-developed gas analysis products for online gas analysis of domestic as well as foreign environmental protection and industrial control. Based on UV Differential Optical Absorption Spectroscopy (DOAS) technology and chemometrics algorithm (PLS), it is able to measure the gas concentration of SO2, NO, NO2, O2, NH3, Cl2, O3, H2S, Ch3 and etc.
FeaturesTechnical ParameterApplication
Features Of EM-5 Flue Gas Analyzer

Our EM-5 continuous flue online gas analyser has high measurement accuracy
Our EM-5 continuousfluegas analyzer has minimum detection limit of SO2, NO, NO2 can reach 1mg/m3 (15m optical path)
Our EM-5 online gas analyser'sultraviolet has no moisture absorption, undisturbed by moisture and dust
Our EM-5 continuous flue online gas analyser has no cross interference between measured gases (refer to table 1)
Our EM-5 continuousfluegas analyzer can measure NO and NO2 simultaneously without converter
Our EM-5online gas analyser has low detection limit for online gas analysis
Measuring gas
Interference SO2 NO NO2 O2
SO2 (500ppm) / <1ppm no no
NO (500ppm) no / no no
NO2 (500ppm) no <1ppm / no
H2O (no dew) no no no no
CO (1000ppm) no no no no
CO2 (20%) no no no no
O2 (21%) no no no /

Our EM-5 continuous flue online gas analyser hashigh reliability
Our EM-5 continuousfluegas analyzer hassmall zero drift and span drift
Our EM-5online gas analyser can do modular design
Our EM-5 continuous flue online gas analyser hasno optical moving parts, without vibration influence
Our EM-5 continuousfluegas analyzerhas strong gas chamber, low cost
Our EM-5 continuousfluegas analyzer has automatic adjustment spectrum technology, long maintenance-free period
Our EM-5online gas analyser canadopt pulse light source with 10-year service life

Technical Parameter Of EM-5 Flue Gas Analyzer

Measurement Principle UV-DOAS＋PLS
Versions Regular range Low range Ultra-low range
Ranges Min range Max range Min range Max range Min range Max range
Component SO2 0-300ppm 0-3000ppm 0-100ppm 0-300ppm 0-50ppm 0-100ppm
NO 0-300ppm 0-3000ppm 0-100ppm 0-300ppm 0-50ppm 0-100ppm
NO2 0-500ppm 0-4000pp 0-300ppm 0-1000ppm 0-100ppm 0-200ppm
O2 (ECD or ZrO2) 0-5% 0-25% 0-5% 0-25% 0-5% 0-25%
Linearity ≤¯3%F.S.
Repeatability ≤2%
Zero Drift ≤¯2%F.S./7d
Span Drift ≤¯2%F.S./7d
Response Time(T90) ≤50s
Working Temperature －20℃～＋50℃
Preheating Time No preheating 20min 40min
Sample Gas Interface Φ6 Bi-Lok
Sample Gas Flow Range: (0.5～2)L/min, fluctuation＜25%
Sample Gas Pressure Current ambient pressure ¯0.1Bar
Sample Gas Temp. 0℃～＋50℃
Sample Gas Humidity No condensation (under sample gas temperature)
4-20mA Input 3 , configurable, 100Ω load
4-20mA Output 5, output content can be configured, maximum load capacity ≤800Ω
Switching value Input 6 , configurable
Relay Output 14, output content can be configured. DC30V2A
Digital I/O 1×Rs232, 1×Rs485 (Support Modbus protocol)
Installation Method 19’ panel
Supply Voltage 220VAC¯10%
Rated Power About 100W About 120W

Application Of EM-5 Flue Gas Analyzer

Coal-fired power plant
Cement plant
Industrial furnace
DeSOX process monitoring
DeNOX process monitoring
Waste incineration plant
PVC process in chlor-alkali plant
Titanium dioxide production process
Sulfur recovery process
Natural gas purification process
Methyl iodide analysis for the online gas analysis in coal chemical industry
On-line air monitoring

With features of high measurement accuracy, high reliability, fast response time, wide application scope, it can be widely applied in occasions of environment online monitoring, industrial process control, safety monitoring and etc.

Depended on years of laser gas analyzer and flue gas analyzer research experience and combined with practical experience of thousands of successful application cases, analyzers provided by continuous emission monitoring system suppliers like ZETIAN have derived multiple types (standard type, low emission type, ultra-low emission type, and customized type) to meet different index requirements in different working condition.

UV DOAS technology. The optical technology platform consists of a light source, gas chamber, optical fiber and spectrograph (including the diaphragm, a holographic grating, linear array detector) and other optical components.

Ultraviolet light emitted by light source enters the gas chamber by an optical window and absorbed by measured sample gas flowed through the gas chamber. The light carrying sample absorption information will be gathered by the lens and coupled into an optical fiber and then transmits into spectrometer through fiber. After light splitting and photo-voltaic conversion, the gas absorption spectrum is obtained.

The corresponding component concentration in the gas can be calculated by analyzing the spectrum.

Note: the difference among standard analyzer, low emission analyzer, and ultra-low analyzer is the different optical path length of gas chamber; for standard online gas analyser, it adopts dual lens collimation system with 0.25m optical path; for low emission analyzer, it adopts multiple return structure with 1m optical path; for ultra-low emission analyzer, it uses white cell structure.

Zetian Group has high-quality continuous gas analyzer for sale, contact us now.

HANGZHOU ZETIAN TECHNOLOGY is a professional air pollution monitoring instruments manufacturers, we provide Air Quality Monitor, Water Quality Analyzers, Continuous Emission Monitoring & Process Control, Gas Analysis Modules,online flue gas analyzer, water quality testing and etc. Want to know about flue gas analyser working principle? Please contact us.