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0813 9929 1909 (Zulfikri)

0822 5870 6420 (Anto)

0821 1460 7782 (Faoji)

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+62-21 29563045







EM-5 Flue Gas Analyzer

EM-5 Flue Gas Analyzer



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Description

EM-5 series flue 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. 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 flue gas analyzer research experience and combined with practical experience of thousands of successful application cases, the analyzer has 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 analyzer, 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.
 

Feature

  • High measurement accuracy
  • Minimum detection limit of SO2, NO, NO2 can reach 1mg/m3  (15m optical path)
  • Ultraviolet has no moisture absorption, undisturbed by moisture and dust
  • No cross interference between measured gases ( refer to table 1)
  • Measure NO and NO2 simultaneously without converter
  • Low detection limit

 

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

/

 

  • High reliability
  • Small zero drift and span drift
  • Modular design
  • No optical moving parts, without vibration influence
  • Strong gas chamber, low cost
  • Automatic adjustment spectrum technology, long maintenance-free period
  • Adopt pulse light source with 10-year service life

Spesification

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

 -20oC~+50oC

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.

 0oC~+50oC

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