Classification
DR252B Bacterial Filtration Efficiency Tester
Category:
keywords:
Pilling& Snaaging testing instrument
DR252B Bacterial Filtration Efficiency Tester
Bacterial Filtration Efficiency Tester
Product Description
【Scope of Application】
Used for detecting various medical and daily protective mask materials, and the percentage of bacterial suspension particles filtered (BFE) under the specified flow rate.
【Related Standards】
YY0469, ASTMF2100, ASTMF2101, EN14683, etc.
【Instrument Characteristics】
1. Professional negative pressure biological cabinet for a safe working environment, ensuring the safety of operators;
2. High negative pressure working cabin, two-stage high-efficiency filters, 100% safe discharge;
3. Adopting two paths of six-level Anderson sampling;
4. Built-in peristaltic pump, the flow size of the peristaltic pump can be adjusted;
5. Special microbial aerosol generator, the spray flow size can be adjusted, with good atomization effect;
6. Industrial-grade large-sized color touch screen control, operation is simpler;
7. USB interface, supports data transfer;
8. RS232/Modbus standard interface, can be connected externally for control;
9. LED lighting built-in in the safety cabinet, convenient for observation;
10. Built-in ultraviolet disinfection lamp;
11. Front-mounted switchable sealed glass door, convenient for operation and observation;
12. Attached SJBF-AS operation software, can be controlled and data processed through a computer, smoothly connected to the laboratory information management system.
【Technical Parameters】
1. Sampling flow rate: 28.3 L/min, resolution 0.1 L/min, accuracy ±2%
2. Spray flow rate: (0.1 - 10) L/min, resolution 0.1 L/min, accuracy ±5%
3. Peristaltic pump flow rate: (0.01 - 3) mL/min, resolution 0.01 mL/min, accuracy ±2%
4. Pressure before sampling flow meter: (-20 - 0) kPa, resolution 0.01 kPa, accuracy ±2%
5. Pressure before spray flow meter: (0 - 300) kPa, resolution 0.1 kPa, accuracy ±2%
6. Negative pressure of the aerosol chamber: (-90 - (-120)) Pa, resolution 0.1 Pa, accuracy ±1%
7. Working temperature: (0 - 50) ℃
8. Cabinet negative pressure: ≥ 120 Pa
9. Data storage capacity: expandable
10. High-efficiency air filter performance: ≥ 99.995% @ 0.3 µm, ≥ 99.9995% @ 0.12 µm
11. Two paths of Anderson sampling device capturing particle size
I level > 7 µm, II level (4.7 - 7) µm, III level (3.3 - 4.7) µm, IV level (2.1 - 3.3) µm, V level (1.1 - 2.1) µm, VI level (0.6 - 1.1) µm
12. Total number of particles in the positive quality control sampling device: (2200 ± 500) cfu
13. Quality median diameter of the aerosol generator: average particle diameter (3.0 ± 0.3) µm, geometric standard deviation ≤ 1.5
14. Particle size captured by the six-level Anderson sampling device:
I level > 7 µm; II level (4.7 - 7) µm; III level (3.3 - 4.7) µm; IV level (2.1 - 3.3) µm; V level (1.1 - 2.1) µm; VI level (0.6 - 1.1) µm
15. Specifications of the aerosol chamber: length 600 × diameter 80 × thickness 3 mm
16. Ventilation flow rate of the negative pressure cabinet: > 5 m³/min
17. Host size inside: (870 × 600 × 1100) mm, outside: (1250 × 700 × 2000) mm
18. Working noise: < 65 dB
19. Working power supply: AC 220V ± 10% 50Hz
Related Products
Welcome your message consultation
Any questions? Keep in touch. We 'd love to hear from you.
Professional Piping Solutions, Global Export Expertise
Add:
NO.8 Kangda Road, Sanxi Industrial Area, Ouhai, Wenzhou, Zhejiang, China
Mob/WhatsApp/：
+86 15258750702
TEL:
+86-0577-88781973
Copyright © 2026 Wenzhou Darong Textile Instrument Co., LTD. Powered by:www.300.cn | seo