Handheld dust detectorIt is a portable on-site rapid measurement device designed for real-time detection of suspended particulate matter concentrations such as PM2.5, PM10, TSP, and other particles of different sizes in the air. Its biggest feature is that it can be tested immediately upon startup, data can be output in seconds, and it is easy to operate. It is widely used in mobile inspection scenarios such as construction site dust, workshop occupational health, indoor air quality, etc.
Handheld dust detectorMainly based on the following three technical principles:
Light scattering method: Laser beam irradiates particles in the air, and the intensity of particle scattering is proportional to the concentration. By measuring the scattered light intensity and applying the mass concentration conversion coefficient, the mass concentration of particulate matter can be obtained. This method has fast response speed, compact structure, and low cost, but it is affected by the material, color, and shape of particles and requires regular calibration.
Beta ray method: Using the principle of dust particles absorbing beta rays, the mass of dust attached to filter paper is indirectly measured by measuring the attenuation degree of beta rays. This method has high accuracy, reliable results, and is not affected by the physical and chemical properties of particles. However, the response is slow and the equipment is expensive, requiring special permission to manage the radioactive source.
Communication electrostatic induction method: detecting the concentration of dust particles in the air by measuring their electrostatic characteristics. This method has no optical components, is resistant to high temperature, high pressure, and high humidity, and is suitable for harsh industrial environments. However, the measurement results depend on the dust charge characteristics and flow rate, and require strict calibration.
Main functions and features:
Portable and easy to use: small size, light weight, equipped with LCD screen and simple buttons, supporting Chinese interface, no need for professional training to get started.
Quick response: Readings can be obtained within seconds after startup, and real-time tracking of dynamic changes in dust concentration can be achieved.
Data management: It can store thousands of sets of historical data and export them to a computer via USB or wireless means for easy generation of detection reports.
Alarm function: supports user-defined concentration thresholds, and reminds on-site personnel to take protective measures through sound and light alarms when exceeding the standard.