I. Purpose and scope of use The instrument is mainly used for environmental protection, health and epidemic prevention system to monitor the CO2 concentration in the public air, but also for environmental protection and civil air defense. Accurately and accurately measure CO2 concentration in public places such as hotels, shopping malls, hospitals, and theaters.

The instrument is a domestic advanced AC and DC power supply portable infrared CO2 analyzer, DC power supply using nickel-cadmium batteries, the machine has a charging circuit. The optical part of the instrument is of advanced structure, and all circuit parts are imported large-scale integrated circuits. Small size, high reliability, short warm-up time, can greatly improve the user's work efficiency.

Two: The main features (1) linearized output, digital display direct reading concentration.

(2) Built-in pump, active sampling, continuous measurement.

(3) AC and DC, easy to operate.

(4) Conform to national GB/T18204.24-2000 standard (5) aluminum alloy instrument case, beautiful and sturdy.

(6) Built-in filter can be replaced externally.

The characteristics of the use of carbon dioxide analyzer III: Working principle The instrument is designed according to the principle of Beer's law and the selective absorption of infrared gas. Gas filter correlation (G, F, C) technology and infrared detectors are used.

Four: The main technical data 1: Measurement range: 0-5000PPmCO2

2: Repeatability: ≤ 1% FS

3: Warm-up time: 2 minutes 4: Response time: ≤ 10 seconds 5: Ambient temperature: 0°C-35°C

6: Ambient humidity: 85% RH

7: Weight: 2 kg 8: Overall dimensions: 85×165×210mm3

9: Consumption: ≤500mA

10: Power supply: 220VAC 10%; 9VDC 10%