• Model NO.：DR252B
• Standard：Yy0469, Astmf2100, Astmf2101, En14683
• Cabinet：Professional Negative Pressure Biological Cabinet
• Aerosol Generator：Special Microbial
• UV Disinfection Lamp;：Built-in
• Sampling Flow：28.3L ,Min Resolution 0.1L ,Min
• Spray Flow：8 ~ 10L,Min Resolution 0.1L ,Min
• Peristaltic Pump Flow：0.006 ~ 3ml,Min Resolution 0.001 Ml,Min
• Sampling Flow Meter Before Pressure：-20 ~ 0 Kpa Resolution 0.01 Kpa
• Spray Flow Meter Front Pressure：0 ~ 300 Kpa Resolution 0.1kpa
• Air Chamber Negative Pressure：-90 ~ -120PA Resolution 0.1PA
• Working Temperature：0 ~ 50ºC
• Cabinet Negative Pressure：>120PA
• HEPA Filter Performance：>99.995%@0.3μm, >99.9995%@0.12μm
• Positive Quality Control Sampler Particl：2200cfu
• Working Noise：< 65dB
• Transport Package：Carton
• Trademark：Darong
• Origin：China
• HS Code：9024800000
• Production Capacity：2000PCS

Basic Info.

Model NO. DR252B Standard Yy0469, Astmf2100, Astmf2101, En14683 Cabinet Professional Negative Pressure Biological Cabinet Aerosol Generator Special Microbial UV Disinfection Lamp; Built-in Sampling Flow 28.3L /Min Resolution 0.1L /Min Spray Flow 8 ~ 10L/Min Resolution 0.1L /Min Peristaltic Pump Flow 0.006 ~ 3ml/Min Resolution 0.001 Ml/Min Sampling Flow Meter Before Pressure -20 ~ 0 Kpa Resolution 0.01 Kpa Spray Flow Meter Front Pressure 0 ~ 300 Kpa Resolution 0.1kpa Air Chamber Negative Pressure -90 ~ -120PA Resolution 0.1PA Working Temperature 0 ~ 50ºC Cabinet Negative Pressure >120PA HEPA Filter Performance >99.995%@0.3μm, >99.9995%@0.12μm Positive Quality Control Sampler Particl 2200cfu Working Noise < 65dB Transport Package Carton Trademark Darong Origin China HS Code 9024800000 Production Capacity 2000PCS

Product Description

DR252B Bacteria Filtration Efficiency Tester





                               
[Scope of application]
It is used to test the percentage of bacterium-containing suspended particles (BFE) of all kinds of medical and daily protective mask materials at specified flow rate.
[Relevant standards]
YY0469, ASTMF2100, ASTMF2101, EN14683, etc.
[Instrument characteristics]
1. Professional negative pressure biological cabinet safe working environment, to ensure the safety of operators;
2. High negative pressure working chamber, two-stage hePA filter, 100% safe discharge;
3. Two-channel and six-level Anderson sampling is adopted;
4. Built-in peristaltic pump, peristaltic pump flow size adjustable;
5. Special microbial aerosol generator, bacteria spray flow size adjustable, good atomization effect;
6. Industrial large color touch screen control, easier to operate;
7. USB interface, support data transfer;
8. RS232/Modbus standard interface, can realize external control;
9. Safety cabinet built-in LED lighting, convenient observation;
10. Built-in UV disinfection lamp;
11. Front switch type sealed glass door, convenient operation and observation;
12. With SJBF-AS operating software, you can control and data processing through the computer, seamless
Connect to laboratory information management system.
[Technical parameters]
1. Sampling flow: 28.3L /min resolution 0.1L /min accuracy ±2%
2. Spray flow :(8 ~ 10)L/min resolution 0.1l /min accuracy ±5%
3. Peristaltic pump flow :(0.006 ~ 3)mL/min resolution 0.001 mL/min accuracy ±2%
4. Sampling flow meter before pressure :(-20 ~ 0)kPa resolution 0.01 kPa accuracy ±2%
5. Spray flow meter front pressure :(0 ~ 300)kPa resolution 0.1kpa accuracy ±2%
6. Air chamber negative pressure :(-90 ~ -120)Pa resolution 0.1pa accuracy ±1%
7. Working temperature :(0 ~ 50)ºC
8. Cabinet negative pressure: ≥120Pa
9. Data storage capacity: The capacity can be expanded
10. HEPA filter performance ≥99.995% @0.3μm, ≥99.9995%@0.12μm
11. Dual-channel 6-stage Anderson sampler to capture particle size
Grade  one> 7μm, Grade two (4.7 ~ 7)μm, Grade three (3.3 ~ 4.7)μm,
Grade four (2.1 ~ 3.3 microns, Grade five microns (1.1 ~ 2.1), Grade six microns (0.6 ~ 1.1)

12. Total number of positive quality control sampler particles :(2200±500)cfu
13. Aerosol generator mass median diameter: average particle diameter (3.0±0.3)µm, geometric standard deviation ≤1.5
14. Six level Anderson sampler to capture particle size:
Grade  one> 7μm, Grade two (4.7 ~ 7)μm, Grade three (3.3 ~ 4.7)μm,
Grade four (2.1 ~ 3.3 microns, Grade five microns (1.1 ~ 2.1), Grade six microns (0.6 ~ 1.1)

15. Aerosol chamber specification length 600× diameter 85× thickness 3mm
16. Negative pressure cabinet ventilation flow >5m3/min
17. Host size inside :(1000×600×690)mm, outside :(1470×790×2100)mm
18. Working noise <65db
19. Working power supply AC220V±10% 50Hz 1kW