Particle filtration efficiency tester, mask detector manufacturer, processing

Description :

　　The detection conditions for the mask particle filtration efficiency tester are: the testing environment temperature is (25 ± 5) C, and the relative humidity is (30 ± 10)%. Testing process:

　　1. Test flow rate (85 ± 4) L/min (if multiple filter elements are used, the flow rate should be evenly divided. If dual filter elements are used, the detection flow rate of each filter element should be (42.5 ± 2) L/mi. If multiple filter elements may be used separately, they should be tested according to the detection conditions of a single filter element). 2. Adjust the filtering efficiency detection system to the detection state and adjust its relevant parameters;

　　2. Use appropriate fixtures to airtightly connect the mouth military body or filter element to the detection device;

　　3. After the testing begins, record the filtration efficiency of the sample with a sampling frequency of 1 time/min. The testing should continue until the particulate matter on the mask is loaded to 30mg; Data processing: Use the small value of the filtration efficiency obtained during the entire testing process as the filtration efficiency of the batch of mask sample materials.

　　The working principle of the mask particle filtration efficiency detector is:

　　The composition and principle of the mask particle filtration efficiency tester equipment include an oil mist generator, data acquisition software, detection product tooling device, concentration detector, filtered concentration detector, computer data calculation device, pressure regulation device, and tooling pipeline testing device. The photometer in the system is used to detect the concentration of the mask before and after filtration, thus completing the detection of the protective efficiency of the mask particles.

　　Mask particle filtration efficiency detector product detailed introduction:

　　1. Using a cold gas aerosol generator to generate continuous and stable aerosol particles, adding the solution is simple and convenient;

　　2. Using two sets of high-precision aerosol particle detection sensors to simultaneously measure the upper and lower chambers;

　　3. Configure a salt particle aerosol generator;

　　4. Configure aerosol particle static charge neutralization device;

　　5. Configure high-precision digital gas flow sensors to measure gas flow rate;

　　6. Configure industrial grade temperature and humidity sensors to measure environmental temperature and humidity in real-time; (Test conditions: 25 ± 5 ℃ 30 ± 10% RH)

　　7. 7-inch touch screen, simple and clear operation;

　　8. Pneumatic fixture, easy and convenient to install and replace samples;

　　9. A silent vacuum pump that integrates suction and exhaust, without the need for an external air source;

　　10. High precision pressure gauge and flow regulating valve, capable of adjusting aerosol concentration;

　　11. Micro printers can print detection data;

　　12. Intelligent configurations such as leakage protection, overload protection, and power-off preservation effectively protect usage safety;

　　13. Testing software that can be connected to a computer (optional).

　　Detailed introduction to the configuration of the mask particle filtration efficiency detector:

　　1. Adopting a 7-inch high-definition LCD touch screen, the content is more intuitive and the operation is easier;

　　2. Equipped with a salt aerosol generator, it can produce aerosols of specific particle size and concentration;

　　3. Equipped with multiple series of fixtures, suitable for testing various types of masks;

　　4. Built in high lifespan sensor module, cumulative sampling time;

　　5. Automatically control aerosol generation, calculate capture efficiency, and reduce human intervention;

　　6. Built in high-precision electronic flowmeter and high-performance sampling pump to ensure flow stability;

　　7. Equipped with automatic pneumatic clamping function;

　　8. Equipped with a built-in anti-static device;

　　9. The product complies with GMP user level three permissions;

　　10. Single and grouped statistical analysis of experimental results can be conducted;

　　11. Equipped with ISP online control and upgrade functions, the testing function can be remotely changed according to requirements;

　　12. Optional oil aerosol generator;

　　13. Specialized computer communication software capable of real-time display of experiments, analysis and processing of data, and data storage.

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• Particle filtration efficiency tester