Maintenance plan of sampling vehicle in clean room

The sampling car in the Clean Room has such a feature that the air is inhaled by the centrifugal fan system, and the pressure is equated by the medium effect and high efficiency filter and the laminar flow cover, and the clean air is sent into the working area to make the working area reach the required purification level, and there is an uninterruptible power supply to facilitate the sampling and use.

In order to meet the sampling requirements, the sampling vehicle is usually made of dust-free fireproof high-precision board material as the frame, and the experimental area is made of stainless steel veneer, which is good in sealing, beautiful and generous, and firm and durable. If such an ideal design is combined with a perfect maintenance program, the use effect of the sample car will be better and the service life will be longer.

During the use of the sampling vehicle, the filter material in the coarse filter should be removed and cleaned regularly according to the environmental cleanliness. In general, when the non-woven filter material contains more dust particles and the surface is black, it can be removed for cleaning or replacement; At the same time, the environment is regularly sterilized.

In order to ensure cleanliness, the cleanliness of the working area should be measured with a dust particle counter every three months, and the average number of colonies in the clean sampling truck should be measured with a plate method. When increasing the input voltage of the fan can not make the average wind speed of the purification work area reach 0.32m/s ~ 0.48m/s, the air high efficiency filter must be replaced.

At the same time, it is also necessary to wipe the surface of the ultraviolet germicidal lamp with gauze stained with alcohol or acetone lamp solution, keep the surface clean, and conduct a monthly maintenance check on the sampling vehicle, and fill in the instrument maintenance record; After each use, clean the instrument immediately, hang the corresponding logo, and fill in the instrument in time.