1 Online carbon dioxide analyzerThe function

Based on the thin film micro acoustic infrared analysis method,LT-IThe infrared gas analyzer adopts intelligent digital technologyThe process of analyzing gas concentration through processing technology is used for online analysis of gases in industrial processes and scientific laboratoriesConcentration has the characteristics of high automation, strong functionality, easy operation, and digital communication.

LT-IType RedThe main functions of an external gas analyzer are as follows:

lRealize constant and trace analysis of gas concentration.

lThe color LCD screen displays clear information.

lTouch screen operation, easy to operate.

l4-20mA current loop output.

l8-way switch quantity (relay) output.

lRS232 communication, easy to expand into RS485.

2 Infrared CO2 gas analyzeroftechnical indicators

lUsed for continuous analysisCO、CO2TheCH4、SO2 andConcentration of gases such as NO.

Minimum range:CO 0～30PPM；CO20～10/20PPM

lWorking environment temperature: (5～45)℃

lStability:±1%FS/7d

lRepeatability:0.5%

lLinear deviation:±1%FS

lResponse time（T90）：≤20s

lEnvironmental temperature impact:±1%FS (5～45)℃

This instrument adopts483mm (19 ") embedded chassis, can be installed in a 483mm (19") standard cabinet. This instrument belongs to non explosion proof electrical equipment and is prohibited from being used in places with explosion hazards.

3 Working principle

Non single element molecules (polar molecules) exhibit characteristic absorption in the mid infrared band, and the absorption intensity satisfies the Lambert Beer law.LT-IType infrared gas analyzer belongs toNDIR (non dispersive) infrared gas analyzer can be used for continuous analysis of the concentration of gas components to be measured in mixed gases.

LT-IThe optical part of the infrared gas analyzer consists of three components:（1) A light source that emits two specific frequency infrared radiation beams. (2) A gas chamber composed of an analysis gas chamber and a reference gas chamber. (3) A thin film micro sound detector that absorbs infrared radiation and converts the energy difference of the infrared radiation into an electrical signal.

The cutting plate modulates the infrared radiation emitted by the infrared filament to form two equal energy infrared radiation beams. Two beams of radiation alternately enter the analysis chamber and the reference chamber. Analyze the infrared radiation energy at the characteristic wavelength absorbed by the measured gas in the gas chamber, so that the infrared energy output from the analysis chamber is less than that from the reference chamber. The thin film micro sound detector converts the difference in infrared energy between two beams into a change in electrical signal, and analyzes the concentration value of the measured gas in the gas chamber through analog signal amplification and digital algorithm calculation.

4 technical advantage

A high-power, high-efficiency, and highly stable infrared radiation light source.

Dual gas path design effectively improves the stability of the instrument

The new thin film micro sound detector has the characteristics of small size, high sensitivity, and good stability.

High precision constant temperature control reduces the impact of environmental temperature on instrument measurement.

Atmospheric pressure compensation reduces the impact of environmental atmospheric pressure changes on instrument measurements.

Isolated current loop output and switch output eliminate the influence of various external interferences on instrument measurement.

5 Typical Engineering Application Fields

chemical fertilizer、chemical industryAir separationWaiting for industrial process gas analysis

Gas analysis in the cement and metallurgical industries

flue gasingredientAnalysis (such asCEMS）

Gas analysis in scientific laboratory

For more information, please consult Wang Zunliang at 13842898696