The AZFC-1 portable dust detector is designed according to the principle of β-ray absorption and adopts the form of mechanical and electrical integration. It is an intelligent instrument and belongs to the first new generation of dust detectors in China. Beta ray is a kind of electron flow. When its energy is less than 1MeV and the mass of the penetrating substance is less than 20mg / cm2, the amount absorbed by the substance is only related to the mass of the substance, not to the physical and chemical characteristics of the substance. Therefore, the mass concentration of the dust can be directly measured, which is completely comparable to the standard measurement method. The measured data shows that the correlation coefficient is more than 98%, and the relative deviation is less than 10%. The instrument is composed of a microcomputer system and a data processing unit. It is equipped with a new constant current sampling system. The concentration is digitally read directly, and the data is stored in the machine. It has the characteristics of high precision, good linearity, small size, light weight, simple operation and convenient carrying. The machine has strong adaptability and wide application. Install different sampling inlet devices to monitor the concentration of total dust, inhalable dust or respirable dust Curtain Cafe Rod,Chrome Cafe Rod,Extendable Cafe Rod,Brushed Nickel Cafe Rod HANGZHOU AG MACHINERY CO.,LTD , https://www.famourhardware.com