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JG467 - Type II Particle Filtration Efficiency (PFE) Tester
JG467-II Particle Filtration Efficiency TesterNational Free Shipping
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JG467-II Particle Filtration Efficiency Tester (PFE)
【Product Overview】
JG467-II Particle Filtration Efficiency Tester is suitable for testing 0-99.999% test efficiency class mask, the mask is tested in accordance with the standard. The structure of the whole test bench is compact and light, and during sea trials, it is only necessary to provide an additionalny suitable power supply and compressed air (no water, no oil), which is suitable for use in laboratories, factories and other occasions. .
【Test Principle】
Fix the finished product on the fixture, and the test air volume will match the desired filtration rate. The aerosol generated by the aerosol generator is controlled, then the aerosol is electrostatically neutralized, then evenly mixed with the filtered test air, and then enters the test area to penetrate through the filter material.
For efficiency measurement, air is separated upstream and downstream of the mask. Use a photometer to measure the concentration of particles in the average diameter of the airflow sample, determine the ratio between inlet and outlet, and then get the measured efficiency. In addition, it can also measure the resistance of the filter media during testing and adjust the control flow.
【Reference standard】
IOS 32610-2016 Annex A (Filtration efficiency) of IOS 32610-2016 technical specifications for daily protective masks
GB 2626-2019 Respiratory protection - Respirator for particulate protection with self-priming filter Chapter 6.3 (Filtration efficiency)
GB 24539-2009 General technical requirements for protective clothing Chemical protective clothing 5.3.3.5 Resistance to penetration of solid particles Particles
GB 19082 -2009 Medical protective clothing specification Chapter 5.7 (Filtration efficiency)
GB 19083-2010 Medical protectionMask specification Section 5.4 (Filtration efficiency)
JG467-II Particle Filtration Efficiency Tester (PFE)
【Main Components】
1. 2 sets of aerosol generators
NaCl (KCl) aerosol generator, DEHS aerosol generator
①Nacl salt aerosol, conc.dust consumption 30-200 mg/m3, due to atomization pressure Adjust the density.
Countable median diameter CMD0.075±0.02 µm. Geometric particle size distribution standard Deviation1.86
② DEHS oily aerosol, dust concentration 20-200 mg/m3 Concentration controlled by spray pressure
Countable median diameter CMD0.185±0.02 µm. Geometric particle size distribution standard deviation 1.6
2. Two photometers
are mainly used to control the concentration of particles before and after the filter being tested. material, the efficiency of the tested filter media is obtained.
【Photometer technical parameters】
Screen
4.3 inch touch screen
Data output method
RS 232
Instrument detection concentration range
（0.001-200）mg/m3
Resolution
1 µg/m3
p Instrument sample flow
2 l/min (fixed)
Inlet
Outer diameter 6 mm
Flow Stability
±3%
3. Differential pressure sensor
It is mainly used to test the pressure drop (or resistance) of the filter media under test at a certain flow rate.
4. Stainless Steel Clamp
Mainly used for pressing and sealing the filter media to be tested.
5. Exhaust Fan
Mainly used to test the flow through the filter material, the flow is stable, environmental and energy saving, and the vibration noise is small.
6. Electrical control and software
Control and operation of equipment circuits, software calculation and data processing, evaluation of upstream concentration stability, operation control, parameter setting.
Functional description
1 All test equipment uses a negative pressure system.
2. Air and aerosol enter through the mixing barrel and pass throughcutting the mask according to the standard consumption (the mask is sealed with a special clip),
3. Two photometers are used to detect the surface of the mask. The downstream concentration is used to calculate the filtration efficiency. Rate. The pressure difference between the inlet and outlet of the mask is determined by a differential pressure gauge.
4. Use the air pump to achieve the rated flow.
5. Generate standard aerosol substances using the aerosol generator.
6. The operation, efficiency and resistance of the equipment are calculated by PLC and display screen.
Environment
Use environment: 0-40℃, 10-70%RH
Storage environment: 0-45℃, 0-70%RH
Dimensions
Length 900X Width 850X Height 1600(mm)
High international service conditions
The company provides professional pre-sales, after-sales and after-sales services by sales; a professional technical team provides customers with equipment installation and commissioning, and bearsresponsibility for the use of operating, maintenance personnel and relevant experimenters after commissioning Operation training, maintenance training, etc., so that they can fully master all kinds of use techniques to ensure normal use, maintenance and service.
The company provides a (non-artificial) warranty service from the date the instrument passes acceptance testing with a one-year warranty, lifetime software updates, and applicable performance standards and technical recommendations. During the warranty period, the company guarantees a response within 2 hours after receiving a call from the user to the support service; if the telephone connection cannot be resolved, the company will send professional technicians to your company to troubleshoot and solve the problem within 24 hours.
During the warranty period, ifit is damaged by irresistible reasons such as fire, flood, earthquake, magnetic field invasion and artificial sabotage factors caused by the method of use, the company is responsible for maintenance, and the cost of equipment and materials will be borne by the user. A certain amount of travel and spare parts costs will be charged outside the warranty period.
