Gas filter spectroscopy monitoring instrument - Air quality automatic monitoring system

NegotiableUpdate on 05/03

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

Principle of Gas Filter Spectroscopy Monitor $r $n: Based on the photoacoustic effect, when an infrared light source passes through a specific narrowband filter, it produces characteristic light of gas absorption spectrum. This characteristic light enters the photoacoustic gas pool, and the measured gas absorbs the characteristic light, causing thermal expansion; If the incident light frequency is modulated in a regular manner, the regular thermal expansion in a sealed photoacoustic gas pool will generate a sound signal. By obtaining the intensity of the sound signal through a microphone, the concentration value of the measured gas can be determined.

Product Details

Gas filter spectroscopic monitoring instrument

Working Principle:

The monitor is designed based on the principle of infrared absorption and Gas Filter Correlation (GFC) technology, which has higher accuracy and sensitivity compared to conventional non dispersive infrared technology. GFC spectroscopy is based on comparing the fine structure of the infrared absorption spectrum of the measured gas with that of other sampled gases. The main structure is a gas filter correlation wheel containing high concentration CO and high-purity nitrogen gas. This instrument complies with the national standards of GB/T18204.2-2014 "Methods for hygiene inspection in public places - Part 2: Chemical pollutants", GBZ/T300.37-2017 "Determination of toxic substances in workplace air - Part 37: Carbon monoxide and carbon dioxide", and GB/T9801-1988 "Determination of carbon monoxide in air quality - Non dispersive infrared method".

Gas filter spectroscopic monitoring instrument

Product Features:

1. Long life infrared light source.

2. Adopt gas filtering technology.

3. The software automatically corrects the impact of pressure on the measurement results.

4. It can store and display monitoring data, calibration records, power outage records, and other information.

5. Large screen graphic dot matrix LCD display.

6. Chinese interface, menu structure, easy to operate.

7. Digital interface and analog output interface.

8. The measured concentration values can be expressed in units of mg/m3, µ g/m3, ppm, and ppb.

9. It has an automatic start function for incoming calls.

10. External pump.

11. Rail combination rack.

12. Sampling/calibration valve.

13. Built in zero point washer.

Main functions

Mainly used for:

(1) Continuous on-site measurement of pollutants such as ammonia (NH3), methane (CH4), nitrous oxide (N2O), carbon dioxide (CO2), sulfur hexafluoride (SF6), and water vapor in livestock and poultry houses;

(2) Measurement of ventilation rate in livestock and poultry houses;

(3) Determination of pollutant removal efficiency in livestock and poultry production process.

For example, ecological research, soil pollution detection, farmland fertilization monitoring, livestock and poultry breeding, organic fertilizer stacking, soil greenhouse gas emissions, and so on