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KF100 DOAS UV Flue Gas Analyzer

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The analyzer based on UV absorption spectroscopy and chemometric algorithms to measure SO2, NOx, O2, NH3, Cl2, O3, H2S and other gases concentration, with high ...
  • KF100
  • KELISAIKE
  • KF100-UV
Quantity:

Product Description

KF100 series Flue Gas Ultraviolet Analyzer


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The analyzer based on UV absorption spectroscopy and chemometric algorithms to measure 

SO2, NOx, O2, CO and other gases concentration, with high accuracy, high reliability, fast response time, 

wide application and other characteristics, the indicators have reached or exceeded similar products, 

it can be widely used in environmental online monitoring, industrial control, security monitoring and other occasions.


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>>>Key Features

 

 

Full spectrum measurement and DOAS (Differential Optical Absorption

Spectroscopy) algorithm, excelling in accuracy,  repeatability and anti-interference with moisture, dust.

Modular design and no moving parts, higher reliability and easier maintenance. Pulse Xenon Lamp used as light source with over 10-year lifetime.

The adoption of diode array sensor enables instant spectrum acquisition and rapid response


>>> Features and Benefits

 

 

1. Analyzer uses the following optical technology platform to get the UV absorption spectrum, the technology platform consists of light source, gas chamber, fiber optics and spectroscopy (including the diaphragm, holographic gratings, linear array detector) and other optical components.

 

2. UV-visible light emitted by the optical window into the gas chamber, is absorbed by the sample gas flowing through the measured gas chamber, carrying the tested sample gas absorbs light through the lens after gathering information coupled into optical fiber through the optical fiber transmission into the spectrometer splitting, sampling, to obtain the absorption spectrum of the gas.


3. Use DOAS technology spectrum analysis, can analyze the concentration of the gas in the relevant component.

 

>>> Measuring principle

 

1) The light source emits ultraviolet beam which transfers to gas cell through optical fiber.

2) After absorption by measuring gas, the light beam transfers through optical fiber to spectrometer.

3) Being dispersed through the grating, dispersed spectral optical signals are converted into electric signal by the CCD array sensor. By DOAS the continuous absorption spectrum of obtained measuring gas is thereafter used to get a plurality of kinds of gases(such as SO2 NO) at the same time.


>>>Technology Comparison


Project

Indicators

SO2 Detection range

0~20ppm  , 0~200ppm,  0~3000ppm

NO Detection range

0~20ppm  , 0~200ppm,  0~3000ppm

O2 Detection range

0-25%, Electrochemical or zirconia

Linearity

≤±2F.S.

Repeatability

2

Zero drift

≤±2F.S./ week

Span drift

≤±2F.S./week

Ambient temperature

545

Response time(T90)

60s

Size

19 *3U*320mm

Analog interface

3-way 4-20mA output,100Ω load; 2-way 4-20mA

output;4-way 4-20mA output, Maxi. Load<800Ω

Data interface

4-way switch input; 8-way relay output, DC32V/2A

Communication Interface

1-way RS-232,1-way RS-485(Supports Mod-bus protocol), measurement data can be sent to the control panel 1000m

away.

Power

220VAC/50Hz 100W

Protection grade

IP42

Sample gas input and output

interface

Ø6 Tube Fittings


Item

UV Hot-Wet   Method

NDIR

 

 

 

Spectral Range

 

Complete and   continuous absorption spectra obtained through holographic grating and diode   array detection

Non

Dispersive,   characteristic absorption spectra obtained through band-pass filter

 

 

Linear Response

 

High wavelength   resolution secures linear response

band-pass   filtration compromises linear

response

 

SO2    Loss

 

Hot-wet   prohibits SO2     dissolution

Condensation   inevitably

causes SO2     loss

 

 

Sampling

System

 

 

Heat tracing.   Requests only dust filtration, simple and no corrosive

Cold-dry.   Requests dust filtration, condensation, water removal and corrosion

proof

Zero Calibration

Period

 

Long (DOAS   algorithm)

 

Short

 

 

 

Anti-Interference

The combination   of complete & continuous absorption spectra, high wavelength resolution,   DAOS algorithm erases interference from

dust, moisture and background gases

 

 

 

Vulnerable to   moisture interference

 

Gas Cell

Connected by optical fiber,   easy to

replace and low maintenance cost

Complex to replace

and   maintenance

Reliability

No moving parts

Moving parts   existed


>>>Technical Specifications



SO2, NOx Analyzer

 

Technical   Principle

 

UV-DOAS

 

Installation   type

 

Hot-wet   Extractive

 

Measurement   Range

 

0~200ppm,    0~1000ppm, 0~3000ppm

 

Zero  Drift

 

 ±2%F.S.

 

Span  Drift

 

 ±2%F.S.

 

Accuracy

 

 ±1%

 

Response  Time(T90)

 

 60s

 

Linearity

 

 ±1%F.S.

 

O2   Analyzer

 

Technical   Principle

 

Zirconia/Electrochemical

 

Measurement   Range

 

0~25%

 

Response   Time(T90)

 

 60s

 

Linearity

 

 ±2%F.S.

 

CO, CO2   Analyzer

 

Technical   Principle

 

NDIR

 

Installation   type

 

Extractive

 

CO   Measurement Range

 

0~1000    ppm

 

CO2   Measurement Range

 

0~20%

 

Zero   Drift

 

 ±2%F.S.

 

Span   Drift

 

 ±2%F.S.

 

Accuracy

 

 ±1%

 

Response   Time(T90)

 

 60s

 

Linearity

 

 ±2%F.S.



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