BHC-1300IIA ​​/ B2 type, BHC-1300IIA ​​/ B3 type biological clean safety cabinet
product features
1. Air curtain isolation design to prevent cross contamination inside and outside. Moving the glass up and down is convenient and flexible.
2. There is a special filter at the exhaust place to control the discharge pollution. Equipped with a special waterproof socket provides great convenience for the operator.
5. Adopt the adjustable air volume fan system, and the electrical appliances are controlled by liquid crystal switch.
BHC-1300IIA ​​/ B2, BHC-130IIA / B3 structure diagram
Structure
The biological safety cabinet is composed of a box, a fan, a high-efficiency filter, an operation switch and other major components. The cabinet is made of high-quality materials, the surface is sprayed with plastic, and the worktop is made of stainless steel. The purification unit uses a fan system with adjustable air volume. By adjusting the working conditions of the fan, the average wind speed in the clean work area can be kept within the rated range, and the service life of the high-efficiency filter is effectively extended.
working principle
The air in the work 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 platform. Part of the air is filtered through the exhaust filter and then discharged through the top exhaust valve. , Forming a clean air flow. The clean air flows through the work area with a certain cross-section wind speed, thereby forming a high-clean working environment.
Install and use
The location of this biological clean safety cabinet should be in a clean environment working room (preferably placed in the primary purification room of 100,000 or 300,000 grade), plug in the power supply, and turn it on according to the function shown on the control panel. Before the start-up, the work area and the shell of the biological clean safety cabinet should be carefully cleaned to remove surface area dust. Normal operation can be carried out ten minutes after the start-up.
maintain
1. Generally, when the working voltage of the fan is adjusted to the highest point after using the eighteenth, and the ideal wind speed is still not reached, it means that the high-efficiency filter has too much dust accumulation (the filter hole on the filter material has been basically blocked, and it must be updated in time) In general, the service life of high-efficiency air filters is 18 months.
2. When replacing the high-efficiency air filter, please pay attention to the correctness of the model specifications (original manufacturer configuration), according to the arrow wind direction device, and pay attention to the perimeter seal of the filter, absolutely no leakage occurs.
General failures, causes, and troubleshooting
Fault phenomenon
the reason
Discharge method
The main power switch fails to close and automatically trips
1. The fan is stuck causing the motor to stall or the circuit is short-circuited
1. Adjust the position of the fan shaft, or replace the impeller and bearing, and check whether the circuit is intact.
2. According to the circuit diagram, check the insulation resistance of the circuit and components to the housing point by point to repair the insulation failure.
Low wind speed
1. The high efficiency filter is invalid.
1. Replace the high-efficiency filter.
The fan does not rotate
1. The contactor does not work.
2. The fan power fuse has blown.
1. Check whether the contactor circuit is normal.
2. Replace the core.
Fluorescent light is not on
1. The lamp or relay is damaged.
2. The fuse of the lamp power supply has blown.
1. Replace the lamp or relay.
2. Replace the core.
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Kumusi (Dongguan) Furniture Co., Ltd. , https://www.coombesfurniture.com