PLC control negative pressure weighing booth for clean room
The weighing booth is a kind of local purification equipment specially used in pharmacy, microbiological research and scientific experiment. It provides a vertical unidirectional air flow. Part of the clean air is circulated in the work area and part is discharged to the nearby area.
Negative pressure is generated in the work area to prevent cross-contamination, and is used to ensure a high cleanliness environment in the work area.
To Weighing and distributing powder and reagents in the equipment. It can control powder, reagent spillage and rise. Prevent the inhalation hazard of powder and reagents to the human body. It also avoid cross-contamination of powder and reagents. Protect the external environment and the safety of indoor personnel.
Three-stage filtration of primary, middle and high-efficiency filters, liquid tank high-efficiency filters meet the test requirements of DOP or PAO.
It is assembled by working area, return air box, fan, and air outlet box. The control panel is located on the front of the working area inside the equipment, which can control the start and stop of the fan, adjust the working condition of the fan, and adjust the wind speed required in the work area.
There is a differential pressure gauge next to it, and the resistance of the test filter is also provided with an exhaust air adjustment plate inside the air supply box, which can adjust the exhaust air volume of the equipment within a reasonable range
