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What are the technical parameters of Mask PFE Tester
2021/02/04
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The Mask PFE Tester of meltblown cloth is used to test the protective effect of daily protective K-hood and other types of K-hood on particles. Applicable to medical device testing center, safety protection testing center, labor protection testing center, drug testing center, disease prevention and control center, textile testing center, hospital, K mask and respirator manufacturing enterprises, etc.
Technical indicators:
1. A cold generating aerosol generator is adopted to generate continuous and stable aerosol particles, which is convenient for filling solution.
2. measure aerosol concentration with high precision PM2.5 sensor.
3. The whole process of particle leakage prevention design protects the safety of laboratory personnel.
4. 2 sets of aerosol generators: salt particle aerosol generator and oily particle aerosol generator.
5. Equipped with electrostatic charge neutralization device for aerosol particles.
6. Configure temperature and humidity sensors to display the environmental temperature and humidity in real time (temperature and humidity requirements: 25℃ 5℃, 30% RH 10% RH).
7. Configure the laser dust particle counter.
8. The design of opening the door in front of the protective effect test warehouse has good sealing performance, and is equipped with operating gloves to facilitate the replacement of the K cover of the port to be inspected.
9. The protective effect test adopts a standard head die: one standard head die, which imitates the real situation that people wear the K cover of the protective opening.
10. Protective effect Aerosol particles: The concentration range of the test bin is (20-30)mg/m3, which can be adjusted and the concentration fluctuation is less than 10%; The aerosol generator produces a particle size distribution of 0.02-2μm, and the mass median diameter is 0.6μm for salt particles and 0.3μm for oil particles.
11. protective effect aerosol concentration detection device: gas sampling flow rate (1-2)L/min, sampling frequency: 20 times /min(1-9999 times /min can be arbitrarily set), dynamic detection (0.001-100)mg/m3, accuracy 1%.
12. Protective effect The suction gas sampling tube is at the lower end of nostril (in oral cavity).
13. The protective effect adopts a breathing simulator to simulate the breathing state of the human body.
14. respiratory simulator: sinusoidal airflow, frequency 20 times /min, respiratory flow control (30 1) l/min, respirator flow range: 0-40L/min.
15. instrument accuracy grade (precision grade): grade 1
16. Control system: the computer controls the test process, automatically collects data, and configures a special computer and test software.
17. Computer automatic test and display: concentration of medium in warehouse, concentration of inhaled gas medium and background concentration; Automatic calculation: protection effect; It can save, output, query and print test data.
18. power supply: AC220V50Hz
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