Forestry Pm2.5 online monitoring system PM-301 dust automatic monitoring equipment

PM-301 dust monitoring instrument, forestry Pm2.5 online monitoring system

PM-301 dust monitoring instrument, forestry Pm2.5 online monitoring system is an instrument that adopts the national standard method, namely the beta ray method. It is currently an internationally recognized measurement method used for real-time online monitoring of PM2.5 in environmental protection, forestry meteorology, atmospheric governance, agriculture, scientific research and other fields.The PM-301 dust monitoring device and forestry Pm2.5 online monitoring system have excellent performance and economy, and meet the monitoring methods required by national standards.

PM-301 Forestry Pm2.5 Online Monitoring System Outdoor Dust PM2.5 Monitoring SystemTechnical indicators:

1Particulate matter（PM2.5）Automatic monitoring device

（1）Equipment usage:Used in the airPM2.5Monitoring of concentration

（2）Configuration requirements:Including cutting head, sampling filter membrane, etc

（3）Technical parameters:

lMeasurement principle:βX-ray method（C14Source), equipped with a dynamic heating system

lMeasurement range:（0-1000）μg/m3

l*Small display unit:0.1μg/m3

lClock error: under normal conditions≤2sUnder power-off conditions≤ 6s

lTemperature measurement indication error:≤0.5℃

lFlow Test:Average flow deviation≤-0.5%Set traffic or≤0.2%Set flow rate

Relative standard deviation of flow rate≤0.1%

Mean flow indication error≤0.1%

lCalibration membrane reproducibility:≤-0.4%(nominal value)

lParallelism:≤6.7%

lEffective data rate:≥85%

lSampling traffic:16.67L/min

lInfluence of environmental temperature and power supply voltage changes: average flow deviation≤1.1%Set flow rate

Relative standard deviation of flow rate≤0.1%

Mean flow indication error≤0.1%

lComparison test of reference methods: Slope:0.87-1.12

Intercept:（3.4-7.3）μg/m3

correlation coefficient≥0.974

luse7An inch high-definition LCD touch screen with a rich and easy to operate human-machine interaction interface. The screen can display gas flow charts, key operating parameters, and dynamic curve graphs;

lBuilt in large capacity memory, storing data for no less than10year,Support data query andUSBData export;

lSingle machine support for monitoring devicesTCP/IPWired or wireless network remote access, supporting digital output, capable of remote operation and system upgrade;

lDigital output signal:RS232/485Digital interface; Digital interface at least2individual(Used for local data acquisition instrumentsVPNReal time transmission and intelligent maintenance and quality control system interface)

lSignal output:RS232/RS485/WLANOptional interface,4-20mA，0-1V/2V/5V/10Voptional

lEmbedded computers and real-time operating software systems with independent intellectual property rights control their operation

lInternal fault automatic diagnosis and alarm prompts, as well as remote diagnosis and error repair.

lSampling and analysis are performed in the same channel, avoiding measurement errors caused by paper feeding.

lSampling heads and cutters that meet industry standards; The sampling system is sealed and connected to the station building with flanges or other types of multi-stage waterproof connections; The flange connected to the outside of the station building is made of corrosion-resistant and sturdy stainless steel

lSecurity: ForβThe instrument using the method of radiation and dynamic heating system complies with the relevant management requirements of China's environmental protection department for the use of equipment containing radioactive sources

The instrument is required to be stable, reliable, and highly accurate, therefore it is required to pass new technology certification or international equivalent technology certification

By using various monitoring sensors in the monitoring unit, the concentration data of various pollutants in the ambient air is continuously collected. Through wireless communication transmission units, it is output to the cloud platform for data viewing, data export, alarm value setting, curve drawing and other functions. In addition, the data storage and display unit of the IoT cloud platform can provide data publishing functions, and users can also conveniently use computers Ipad、 Directly log in to the cloud platform with a mobile phone to observe data, download data, and download curve change charts; And it can receive and display data in real-time through multimedia LED display screens.