
Usage
Bacterial Filtration Efficiency Tester is used to detect various medical and daily protective mask materials and filter out the percentage of bacteria-containing suspended particles (BFE) under the specified flow rate.
Product principle:
Bacterial Filtration Efficiency Tester is composed of aerosol generating system, aerosol chamber and aerosol transmission device, negative pressure cabinet, 28.3L / min C sampler, etc. The entire detector is controlled by the console. The console uses a microcomputer control system to coordinate and control the work of the aerosol generation system, transmission system, negative pressure cabinet, and sampling system, and displays the working status in real time. The entire measurement work is automatically completed.
Test standard
YY0469-2004,YY/T 0969-2013,ASTMF2100,ASTMF2101,EN14683 ect.
Features
Negative pressure test system to ensure the safety of operators.
The negative pressure cabinet has a built-in peristaltic pump, A and B two-way six-stage Anderson.
The flow rate of the peristaltic pump can be set according to the situation.
The flow rate of the bacterial liquid mist of the special microbial aerosol generator can be set, and the atomization effect is good.
Industrial microcomputer control.
High-brightness color touch screen.
USB interface, support U disk data transfer.
Built-in high-brightness lights. Easy to observe.
Built-in built-in leakage protection switch to protect the safety of operators.
The front glass door is convenient for the operator to observe the operation.
Technical parameters
Vacuum pump | Oil-free rotary vane vacuum pump, the maximum flow rate reaches 57LPM, equipped with a silencer, stable air flow |
Aerosol generator flow control | Using mass flow control, precise control |
Sampling flow I & II | Anderson sampling flow rate 28.3L / min, resolution: 0.1L / min accuracy: 2.5% |
Sampling I & II | Equipped with mass flow controller |
Pneumatic pressure I & II | 0-5KPa |
Spray flowmeter pressure | 0-300KPa |
Negative pressure of aerosol chamber | 0-120KPa |
Working temperature | 0-50 |
Cabinet negative pressure | 0~ 120Pa |
Data storage capacity | Can download data via U disk |
Mass flow controller | 0-20L / min, resolution: 0.1 L / min |
Peristaltic pump flow | (0.01~3.0) mL / min |
High-efficiency air filtration performance | The filtration efficiency of particles above 0.3um is 99.99%, |
Median mass diameter of aerosol generator | 3.0 0.3m, geometric standard deviation 1.5 |
Dual 6-stage Anderson sampler capture particle size | I> 7m, II>4.7-7m, III >3.3-4.7m, |
Aerosol chamber specifications | 60cmX80 cmX 5cm (LxWxH) |
Total number of positive control sampler particles | 2200 500cfu |
Ventilation flow of negative pressure system | 800m / min |
Operating room size | 740 940 440mm(LxWxH) |
Dimensions | 1200 650 2100mm(WxDxH) |
Instrument noise | <65dB (A) |
Machine weight | about 120kg |
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