Mask bacterial filtration efficiency meter

Mask bacterial filtration efficiency meter

Product model: G299

Product Introduction:

The mask bacterial filtration efficiency (BFE) detector adopts a dual gas path simultaneous comparison sampling method, which improves the accuracy of sampling. It is suitable for performance testing of mask bacterial filtration efficiency by metrological verification departments, research institutes, mask production enterprises, and other relevant departments.

Compliant with standards:

Appendix B of YY0469-2011 Technical Requirements for Medical Surgical Masks - Bacterial Filtration Efficiency (BFE) Test Method, Section B.1.1.1

Q/0212ZRB003-2011 Medical Surgical Mask Bacterial Filtration Efficiency (BFE) Tester

ASTMF2100, ASTMF2101, European EN14683

Technical features:

1. Negative pressure experimental system to ensure the safety of operators;

2. The negative pressure cabinet is equipped with a peristaltic pump, with six stage Andersen for both A and B circuits;

3. The flow rate of the peristaltic pump can be set;

4. The flow rate of the special microbial aerosol generator at night can be set, and the atomization effect is good;

5. Embedded high-speed industrial microcomputer control;

6.10.4 inch industrial grade high brightness color touch screen;

7. USB interface, supporting USB data transfer and storage;

8. The cabinet is equipped with high brightness lighting;

9. The inner layer of the cabinet is made of stainless steel and processed as a whole. The outer layer is sprayed with cold rolled sheet, and the insulation and flame retardant properties between the inner and outer layers are maintained;

10. Detachable bracket, adjustable in height, supports and moves dual-purpose casters.

Technical indicators:

A sampling flow rate of 28.3L/min0.1L/min is better than ± 2.5%

B-channel sampling flow rate of 28.3L/min0.1L/min is better than ± 2.5%

Spray flow (8 ～ 10) L/min 0.1L/min better than ± 5.0%

The peristaltic pump flow rate (0.006~3.0) mL/min0.001ml/min is better than ± 2.5%

The pressure in front of the A flow meter (-20~0) kPa is better than ± 2.5% at 0.01kPa

The pressure in front of the B flow meter (-20~0) kPa is better than ± 2.5% at 0.01kPa

Front pressure of spray flowmeter (0 ～ 300) kPa0.1kPa is better than ± 2.5%

Negative pressure (-90~-120) Pa0.1Pa in the aerosol chamber is better than ± 2.0%

Working temperature (0-50) ℃

Cabinet negative pressure (-50~-200) Pa

Data storage capacity>100000 sets

The characteristics of high-efficiency air filters have a filtration efficiency of ≥ 99.99% for particles above 0.3um

Aerosol generator mass median diameter average particle diameter (3.0 ± 0.3) μ m. Geometric standard deviation ≤ 1.5

Double channel 6-stage Anderson sampler captures particle size level I>7 μ m. Level II (4.7-7) μ m. Level III (3.3-4.7) μ m. Level IV (2.1 to 3.3) μ m. Grade V (1.1-2.1) μ m. Grade VI (0.6-1.1) μ M

Mist chamber specifications (length 600 x diameter 85 x thickness 3) mm

Total particle count of positive quality control sampler (2200 ± 500) cfu

Ventilation flow rate of negative pressure cabinet ≥ 5m3/min

Negative pressure cabinet door size (length 1000 x width 730) mm

Host size (length 1180 x width 650 x height 1300) mm

Support size (length 1180 x width 650 x height 600) mm, height adjustable within 100mm

Working power supply AC220V ± 10%, 50Hz

Instrument noise<65dB (A)

The overall weight is about 150kg

Whole machine power consumption<1500W

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