Biological Safety Cabinet Series Half Exhaust
Biological safety cabinet (BSC) is a box-type air purification negative pressure safety device that can prevent certain dangerous or unknown biological particles from dissipating aerosols during the experimental operation. It is widely used in scientific research, teaching, clinical testing and production in the fields of microbiology, biomedicine, genetic engineering, biological products, etc. It is the most basic safety protection equipment in the first-level protective barrier in laboratory biosafety.
1. Comply with the requirements of China SFDA YY0569 standard and American NSF/ANS|49 standard for Class II biological safety cabinet.
2. The box body is made of steel and wood structure, and the whole machine is equipped with movable casters, which is convenient for transportation and installation.
3. DRK series 10° tilt design, more ergonomic.
4. Vertical flow negative pressure model, 30% of the air is filtered and recycled, 70% of the air can be discharged indoors or connected to the exhaust system after filtering.
5. Safety interlock with lighting and sterilization system.
6. HEPA high efficiency filter, the filtration efficiency of 0.3μm dust particles can reach more than 99.99%.
7. Digital display LCD control interface, fast, medium and slow speed, more humane design.
8. The working area is made of SUS304 brushed stainless steel, which is strong, durable, easy to clean and anti-corrosion.
9. Standard configuration of 160mm diameter, 1 meter long exhaust pipe and elbow.
10.One five-hole socket in the work area.
Schematic
| Model/Parameter | DRK-1000IIA2 | DRK-1300IIA2 | DRK-1600IIA2 | BHC-1300IIA/B2 | ||
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10° tilt angle of front window |
Vertical face |
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| Exhaust way |
30% internal circulation, 70% external discharge |
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| Cleanliness |
100grade@≥0.5μm(USA209E） |
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| Number of colonies |
≤0.5Pcs/dish·hour（Φ90㎜Culture plate） |
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| average wind speed | Inside the door |
0.38±0.025m/s |
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| intermediate |
0.26±0.025m/s |
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| Inside |
0.27±0.025m/s |
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| Front suction wind speed |
0.55m±0.025m/s（70%Efflux） |
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| Noise |
≤62dB(A) |
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| Power Supply |
AC Single phase220V/50Hz |
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| Vibration half peak |
≤3μm |
≤5μm |
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| Maximum power consumption |
800W |
1000W |
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| Weight |
15kg |
200kg |
250kg |
220kg |
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| Work area size | W1×D1×H1 | 1000×650×620 | 1300×650×620 | 1600×650×620 | 1000×675×620 | |
| Dimensions | W×D×H | 1195×720×1950 | 1495×720×1950 | 1795×720×1950 | 1195×735×1950 | |
| High efficiency filter specification and quantity | 955×554×50×① | 1297×554×50×① | 1597×554×50×① | 995×640×50×① | ||
| Specification and quantity of fluorescent lamp/ultraviolet lamp | 20W×①/20W×① | 30W×①/30W×① | 30W×①/30W×① | 20W×①/20W×① | ||
The biological safety cabinet is composed of several major components such as a cabinet, a fan, a high-efficiency filter, and an operation switch. The box body is made of high-quality materials, the surface is sprayed with plastic treatment, and the work surface is made of stainless steel. The purification unit adopts a fan system with adjustable air volume. By adjusting the working conditions of the fan, the average wind speed in the clean working area can be kept within the rated range, and the service life of the high-efficiency filter can be effectively extended.
The air in the working area is drawn into the static pressure box by the fan through the air return ports on both sides of the front and back of the table. One part is filtered by the exhaust filter and then discharged through the top exhaust valve, and the other part is filtered by the air supply high efficiency filter and blown out from the air outlet surface , Form a clean air flow. The clean airflow flows through the working area at a certain cross-sectional wind speed, thereby forming a highly clean working environment.
The location of the biological clean safety cabinet should be in a clean working room (preferably placed in a primary clean room with a level of 100,000 or 300,000), plug in the power source, and turn it on according to the function shown on the control panel. , Before starting up, the working area and shell of the biological clean safety cabinet should be carefully cleaned to remove surface dust. Normal operation and use can be carried out ten minutes after starting up.
1. Generally, when the working voltage of the fan is adjusted to the highest point after the eighteenth is used, when the ideal wind speed is still not reached, it means that the high-efficiency filter has too much dust (the filter hole on the filter material has been basically blocked, and it should be updated in time) , Generally, the service life of high efficiency air filter is 18 months.
2. When replacing the high-efficiency air filter, pay attention to the correctness of the model, specification and size (configured by the original manufacturer), follow the arrow wind direction device, and pay attention to the surrounding seal of the filter, and there is absolutely no leakage.
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Failure phenomenon |
The reason |
Elimination method |
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The main power switch fails to close, and it automatically trips |
1. The fan is stuck and the motor is blocked, or there is a short circuit in the circuit |
1. Adjust the position of the fan shaft, or replace the impeller and bearing, and check whether the circuit is in good condition. |
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Low wind speed |
1. The high efficiency filter fails. |
1. Replace the high efficiency filter. |
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Fan does not turn |
1. The contactor does not work. |
1. Check whether the contactor circuit is normal. |
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Fluorescent light does not light up |
1. The lamp or relay is damaged. |
1. Replace the lamp or relay. |