PM10/PM2.5 atmospheric dust detector

PM10/PM2.5Atmospheric dust detector

PM10/PM2.5Overview of Atmospheric Dust Detector

At present, domestically produced handheld dust detectors have small flow rates and large errors, which cannot guarantee measurement accuracy. Our company has successfully solved this series of problems and provided a high-precision instrument for atmospheric dust detection, which is high flow, online, with remote communication function, and can simultaneously measure particle number and concentration.

Domestic air online detection mainly uses beta rays, with long measurement time and high prices10Over ten thousand, our company has recently developed a product that uses laser principles.2Produce a test result every minute and measure:PM10ThePM2.5Instruments for particle number and mass concentration.

As is well known, atmospheric haze, dust particles, and dust are the main culprits causing air quality. With the requirement for online detection of atmospheric dust, our company uses methods that comply with the labor industry standard "Light Scattering Measurement Method for Dust Concentration in the Air" and the Ministry of Health standard "Inhalable Particulate Matter in the Air of Public Places"(PM10)Determination method-Light Scattering Method. A high-performance online detection instrument has been designed for online detection and installation.

PM10/PM2.5Structure of atmospheric dust detector

The external air of the detector enters the suction port, passes through the maze cutter to remove coarse particles, blocks external light, and enters the detector darkroom. The parallel light in the darkroom intersects with the field of view of the light receiving part at a right angle to form a sensitive area (indicated by the diagonal line in the figure). When dust passes through the sensitive area, it90The scattered light in the direction of ℃ passes through the slit and enters the photomultiplier tube to be converted into photocurrent, which is then converted into the number of pulses per unit time proportional to the scattered light by the photocurrent integration circuit. Therefore, recording the number of pulses per unit time can determine the relative mass concentration of dust.

The relative mass concentration unit used in this instrumentCPM(Count Per Minute), meaning "pulse count per minute", used as a unit of mass concentrationmg/m3.

PM10/PM2.5Places where atmospheric dust detectors are used

◎ Labor hygiene respiratory dust Determination of total dust concentration

◎ Dust generated at production sites of industrial and mining enterprises Continuous online monitoring of dust concentration at construction sites

◎ Inhalable particulate matter in public places（PM10ThePM2.5）And the rapid and online detection of atmospheric dust by environmental monitoring departments.

PM10/PM2.5Main performance indicators of atmospheric dust detector

○ Measurement range:0.001～100 mg/M33；The range can be customized according to the user.

○ Detection sensitivity:0.001 mg/M33; (Average particle size)0.3MmGeometric standard deviation1.25Stearic acid granules

The value of sub correction.

○ Measurement accuracy: ±8%(Relative correction particles)

○ Measurement principle: Laser light scattering principle Gas sampling flow rate3L/divide Microcomputer touch screen

○ Computer display screen: digital display,KThe value can be set arbitrarily. It can accurately measure the particle mass concentration in different locations.

○Online direct reading:PM10ThePM2.5The number of particles is displayed separately, and the concentration value of dust is also displayed,

○ Output: Yes485InterfaceIt can be connected to a data acquisition device and remotely transmit detection data to a control center or read measurement values through a remote mobile phone.

○ Data: Can be stored256Group data,

Operation interface:microcomputer touch screen,KValue and correction coefficient, direct reading concentration. Any setting,

○ Measurement time: The standard time is90Seconds, users can freely set. Automatically calculate the standard concentration within the time frame.

○ Power supply:12VRechargeable battery, capable of continuous use12Hour, ambient temperature:-5～40℃

Currently, the mostA professional dust detector can facilitate online dust detection for pollution emissions in various regions. We also provide data collectors, and users are welcome to choose and use our products.

(The only enterprise in Jiangsu region that produces this product), market price:20000yuan