PM2.5As the core equipment for environmental air quality monitoring, particulate matter samplers accurately capture total suspended particles in the atmosphere through filter membrane weighing method（TSP）Inhalable particulate matter（PM10）And fine particulate matter（PM2.5）To provide key data support for air pollution research, environmental regulation, and health risk assessment. To gather creativityJCH-120F-1Taking the intelligent sampler as an example, its technological advantages and application value are reflected in the following aspects:

1、 Technical Highlights: Integration of Precision, Efficiency, and Intelligence

1. Wide range sampling and material optimization

Sampler supportTSP/PM10/PM2.5/PM5/PM1Multi level particle synchronous capture, sampling head made of aluminum alloy material, surface treated with anodizing, improved anti-static adsorption ability30%Effectively reduce the deviation of particulate matter deposition. for example, inPM2.5During sampling, aluminum alloy material can control the loss rate of particulate matter at the edge of the filter membrane2%Within, it is significantly better than traditional plastic sampling heads.

Electronic flowmeter achieves constant current control and flow error≤±2%Ensure the accuracy of the sampling volume. A comparative test in a certain laboratory shows that its flow stability is better than that of mechanical flow meters15%Especially suitable for long-term continuous sampling scenarios.

2. Intelligent interaction and data compensation

The Chinese LCD screen supports real-time display of parameters such as pressure, temperature, and flow rate, and can be set for timed sampling（1minute-99Hour by hour and multiple sampling at equal intervals (maximum)10Next time). For example, in haze event monitoring, each2Automatic sampling once per hour, continuous recording72Hourly changes in particulate matter concentration.

Built in temperature and pressure sensors automatically compensate for flow deviation, combined with real-time clock function, automatically calculate the sampling volume of standard conditions (converted to)25℃The101.325kPa）To avoid data distortion caused by fluctuations in environmental temperature and pressure. The application of an air quality monitoring station in a certain city shows that this function enablesPM2.5Concentration data error rate from8%drop to2%Within.

3. Environmental adaptability and portable design

The sampler adopts a brushless control fan, which generates noise≤55dB(A)Suitable for sampling at night or in residential areas. Under low temperature conditions（-20℃to50℃）Automatically adjust the contrast of the display screen to ensure visibility. For example, in winter field sampling in the north, the display screen can still display data clearly, while ordinary LCD screens experience operational delays.

Optional mobile power box（JCD-1500Upgraded version supports continuous operation without AC power8Hour by hour, to meet the needs of remote areas or emergency monitoring.

2、 Application scenario: Multi domain coverage monitoring tool

1. Environmental supervision and pollution tracing

The environmental protection department uses samplers to carry out regional surveysPM2.5Source analysis, combined with meteorological data to identify the contribution rate of pollution sources such as industrial emissions and motor vehicle exhaust. For example, in a certain city, continuous3Annual sampling analysis reveals that motor vehicle exhaust has an impact onPM2.5The contribution rate from2018year35%Rising to2023year48%Provide scientific basis for policy-making.

2. Research and Health Research

Research institutions capture particles of different sizes through samplers and analyze the correlation between their chemical components (such as heavy metals and polycyclic aromatic hydrocarbons) and health effects. A study conducted by a certain medical school shows that,PM2.5Each increase in lead content0.1μg/m³The incidence rate of childhood asthma increases3.2%.

3. Industrial Safety and Occupational Protection

Petrochemical and metallurgical enterprises use samplers to monitor workshop dust concentration and evaluate the effectiveness of dust prevention facilities. A certain steel plant optimized the dust removal system to improve the workshopPM10Concentration from15mg/m³drop to5mg/m³Compliant with national occupational health standards.

3、 Practical Value: Data Reliability and Cost Optimization

JuchuangJCH-120F-1The sampler is certified by the metrology institute and equipped with a professional metrology certificate to ensure data complianceHJ 618-2011Waiting for national standards. Its automation function reduces manual intervention and lowers labor costs for single sampling40%And the accuracy of data has been improved25%For example, after a third-party testing agency applied it, the annual sampling volume increased from2000Increase to3500Secondly, operational efficiency has significantly improved.

Conclusion

PM2.5The particulate sampler has become an important tool in the field of environmental monitoring due to its high precision, intelligence, and adaptability to multiple scenarios. With the development of IoT technology, future samplers will be integrated5GThe communication module enables real-time data transmission and remote quality control, further promoting the precision and scientificity of air pollution prevention and control.