DX6220 CO2, CH4, CnHm NDIR Gas Analyzer

CO2, CH4 and CnHm Gas Sensing for Industrial and Environment Applications

DX6220 Series of Non-dispersive Infra-Red (NDIR) Gas Analyzers for Carbon Dioxide (CO2), Methane (CH4) and Hydrocarbons (CnHm) gases measurements has the differential double frequency optical scheme, that provides high accuracy in a wide range of humidity and temperature due to the internal thermal stabilization. The series consists of three models: from the simplest OEM version to the complete one with an LCD and a keypad. Each model is available in several options to measure concentration of different gases.

DX6220 OEM model is developed for applications where a gas analyzer needs to be integrated into a more complex system. OEM version of gas analyzer consists of a sampling cell and an electronic board (Mainboard). The electronic board is mounted directly onto the housing. Connection with a PC (RS232 interface), analog output and a power supply are provided by onboard SMD micro connectors of JST type.

DX6220 Mini model for measuring of Carbon Dioxide (CO2), Methane (CH4) and Hydrocarbons (CnHm) has the same architecture as the OEM model (the gas sampling cell and the main board). All is assembled into the solid metal housing. RS232 interface, Analog Output and the power supply are provided by LEMO connectors. DX6220 Mini is an intermediate solution between complete LCD and OEM versions of DX6220 NDIR Gas analyzers.

DX6220 LCD is the complete NDIR gas analyzer of the DX6220 series for Carbon Dioxide (CO2), Methane (CH4) and Hydrocarbons (CnHm) gases measuring. Additionally to the packaged DX6220 Mini design, this model contains a Control Board with an LCD display and a keypad. Besides the basic functions the device provides display of measurements, set of main parameters with a keypad, archive of measured results in the flash-memory chip, real time and date set.

- Cost-effective solution

- High Selectivity and Stability

- Wide range of concentrations

- Pressure measurements

- Temperature measurements

- Fast response

- Long service life

- No moving parts

- Miniature design

- Small weight

- Minimum power consumption

CO2, CH4, CnHm

- Laboratory Experiments

- Indoor Air Quality

- Greenhouse Applications

- OEM Biotech

- Agriculture Industry

- Metal Heat Treating Industry

- Hydrocarbons Exploration

- NAVY Applications

- Petrol Chemical Plants

English

日本語

DX6220 NDIR Gas Analyzers are distributed exclusively by

TEC Microsystems GmbH company

Schwarzschildstrasse 3, 12489 Berlin, Germany

Tel: +49 (0)30 6789 2881 Fax: +49 (0)30 6789 3315

VAT-ID: DE814802364 Register: AG Charlottenburg HRB 105977B

Dimensions are in mm

Legal Notice

The NDIR (Non-Dispersive Infra-Red Spectroscopy) measurement method is implemented in the DX6220 gas analyzers. NDIR Gas Analyzer provides CO2, CH4 and CnHm gases concentration measurement based on the classical double channel optical scheme. One of the beams (measuring channel) has the wavelength tuned to the optical absorption line of the measured gas. The other beam (reference channel) has the wavelength that is out of the adsorption band of the measured gas (Carbon Dioxide, Methane or Hydrocarbons). After passing through the measured gas sampling cell the intensities of the two light beams are compared.

According to the Beer-Bouguer-Lambert law, light absorption in a gas volume is proportional to the absorbing gas concentration:

I=I0 * e-αLX

where I0– intensity of light before passing through the gas volume; I – intensity of light after passing through the gas volume; α– absorption coefficient of the gas at the chosen light wavelength; L – optical pass length; X – gas concentration. At a fixed L and a known absorption α it is possible to find gas concentration using measured intensity of light (measuring channel) that passed from Light Emitter to Photodetector. The picture on the right shows outlines of spectral bands for the methane Analyzer. The reference channel is used for indirect measuring of the initial intensity of light, and allows eliminating actual measurements conditions influence (total transparency of gas volume, optics imperfection, etc.).