Nitrogen oxide analyzer for flue gas analysis, suitable for university laboratories

Instrument functions

Based on the semiconductor infrared analysis method, the nitrogen oxide infrared gas analyzer adopts intelligent digital processing technology to achieve the analysis process of gas concentration, which is used for online analysis of gas concentration in industrial processes and scientific laboratories. It has the characteristics of high automation, strong functionality, easy operation, and digital communication.

The main functions of the nitrogen oxide infrared gas analyzer are as follows:

Single component or two-component infrared spectroscopy can analyze up to three gas concentrations simultaneously, with two-component infrared measurement and one channel oxygen measurement;

● Can achieve intermediate range measurement;

● Color LCD screen display, clear information display;

● Touch screen operation, easy to operate;

4-20mA current loop output;

● 8-way switch quantity (relay) output.

Technical Specifications

Used for analyzing the concentration of gases such as N2O, an additional oxygen concentration measurement can be added.

Chemical molecular formula, small range, large range

N2O 0~50×10-6 0~100%

Working environment temperature: (5-45) ℃

Stability: ± 2% FS/7d

Repeatability: 1%

Linear deviation: ± 2% FS

Response time (T90): ≤ 25s (infrared)

Environmental temperature impact: ± 2% FS (5-45) ℃

Interference error impact: ± 2% FS

working principle

Spectral absorption method indicates that many gas molecules exhibit characteristic absorption in the infrared band. According to Lambert Beer's law, the characteristic absorption intensity is directly proportional to the gas concentration. This gas analyzer adopts this principle and belongs to the NDIR (non dispersive) infrared gas analyzer. It can be used for continuous analysis of the concentration of one or several gas components to be tested in mixed gases. The nitrogen oxide infrared gas analyzer adopts mature and reliable analysis methods in the field of gas analysis, using MEMS infrared light source and dual channel infrared detector.

Nitrogen oxide analyzer for flue gas analysis, suitable for university laboratoriesThis gas analyzer has complete functions and good performance indicators, especially good stability, strong anti-interference ability, little influence from environmental temperature, and high reliability. It is suitable for online use in harsh process industries, environmental protection, and scientific research fields.

technical advantage

MEMS infrared light source is an electrically modulated pulse light source with a high modulation frequency, which meets the characteristics requirements of pyroelectric detectors.

The dual channel detector design effectively improves the stability of the instrument.

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 reduce the impact of various external interferences on instrument measurement.

Typical Engineering Application Fields

Gas analysis of industrial processes such as fertilizer and chemical engineering

Gas analysis in the cement and metallurgical industries

● Smoke composition analysis (such as CEMS)

● Gas analysis in scientific laboratories

Nitrogen oxide analyzer for flue gas analysis, suitable for university laboratories