Our company has launched an instrument that utilizes the principle of infrared spectroscopy absorption to measure low concentrations of carbon monoxide and carbon dioxide. accord withGB/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" are national standards.

This instrument complies with the national metrological verification regulations of JJG635-2011 "Infrared Gas Analyzer for Carbon Monoxide and Carbon Dioxide", and its main technical indicators meet the technical requirements of national secondary instruments. It can obtain a verification certificate from the Chinese Academy of Metrology (verification conclusion: qualified, this instrument meets the secondary technical requirements).

• Technical parameters:

ØDetection principle: Non dispersive infrared gas analysis method/Non dispersive infrared method (national standard)

ØDetecting gases: Carbon monoxide (CO), carbon dioxide (CO2) in the air

ØDetection method: Built in pump suction

ØMeasurement range: 0~50.0 × 10^-6CO，0~0.500%

ØConcentration display ppm, mg/m3 automatic conversion temperature and humidity display

ØResolution: 0.1 × 10^-6CO；0.001% CO₂

ØColor touch screen operation, with 485 data interface to automatically store 5000 sets of measurement data

ØAutomatic zero point correction technology, convenient for users to perform zero point correction in different seasons and times

ØLinearity: ≤± 2% full-scale reproducibility: ≤ 1% full-scale

ØZero drift: ≤± 2% full-scale/h span drift: ≤± 2% full-scale/3h

ØInterference error: 1250mg/m³CO ≤± 0.3% full range

ØResponse time: CO：t₀～t₉₀≤45S； CO₂： t₀～t₉₀≤ 15S, preheating time: 30min

ØFlow range: （0.5-2.0）L/min

ØPower supply: AC/DC dual-use, 220AVC (± 10%) or built-in rechargeable battery