The atmospheric particulate matter black carbon analyzer using optical attenuation method can continuously, real-time, and online detect the mass concentration of carbon black aerosols in the atmosphere, and is a specialized instrument for monitoring carbon black aerosols. The instrument is not only equipped with an 880 nm standard light source, but also with six other reference light sources (370, 450, 520, 590, 660, 950 nm), widely used for measuring the mass concentration and optical absorption coefficient of black carbon, analyzing the source distribution and physicochemical properties of black carbon aerosols.

The technical method complies with the requirements of the "QX/T 68-2007 Atmospheric Black Carbon Aerosol Observation - Optical Attenuation Method" standard, and is the first and only recommended method for measuring the mass concentration of carbon black aerosols.

The system is stable and reliable, with periodic self calibration and high accuracy.

The dual detector correction system improves the accuracy and anti-interference of detection data; The charge integration AD system improves the detection accuracy of multi-channel microcurrent signals.

Internal high-precision flow controller and related supporting design ensure stable sampling flow.

7-band measurement provides comprehensive optical absorption information of black carbon aerosols, which is beneficial for eliminating the influence of interfering substances and is particularly suitable for scientific research applications.

Instrument purpose: It can continuously and real-time monitor the mass concentration of black carbon aerosols in the atmosphere, analyze the source distribution and physicochemical properties of black carbon aerosols;

Working principle: Optical attenuation method

Measurement range:50 ng/m3～100,000ng/m3

Light source wavelength:370nm，450nm，520nm，590nm，660nm，880nm，950nm

Operating environment:-10℃～40℃, typical indoor environment

Power Supply:220V±22V，50Hz±1Hz