• Automatic constant or stepwise adjustment of wind speed: The negative pressure weighing chamber is equipped with an advanced wind speed control system, which can automatically adjust the wind speed according to the needs to ensure the stability of the weighing environment.

• Liquid tank design ensures perfect sealing: the sealing method of liquid tank design effectively prevents air leakage and ensures the sealing of the weighing environment.

• Double Negative Pressure Structure, No Leakage Risk: The double negative pressure design reduces the possibility of leakage and provides higher safety.

• Excellent air uniformity distribution performance: Optimized design ensures that air is uniformly distributed throughout the weighing area, avoiding any influence on the weighing results.

• High-precision weighing: Combined with high-precision load cell and measuring instrument, it realizes high-precision weighing measurement and ensures the accuracy of weighing.

• Safety and environmental protection: adopting energy-saving and environmental protection design, reducing energy consumption while ensuring the safety of the operation process.

• Material and Structure
  

Negative pressure weighing chambers are usually made of 304 stainless steel, with a thickness of about 1.0mm, to ensure the robustness and corrosion resistance of the equipment. The chamber is precision bent, welded and assembled into shape, with high surface flatness, easy to clean and maintain.

• Filtration System

The negative pressure weighing chamber is equipped with a highly efficient filtration system, including primary filters, intermediate filters and high-efficiency filters, which work together to ensure the cleanliness of the air. In particular, the high efficiency filters must meet DOP or PAO test requirements to achieve the highest filtration efficiency.

• Control System

The Negative Pressure Weighing Chamber is equipped with an advanced control system including PLC control, frequency converter and touch screen operator interface. These intelligent control systems not only improve the ease of operation, but also accurately regulate air speed, monitor differential pressure and other key parameters to ensure that the equipment is always in the best working condition.

• Lighting and Sterilization

The weighing room is equipped with a special lighting system to ensure sufficient illumination, generally requiring the illumination at one meter above the ground to be more than 300 Lux. In addition, it may also be equipped with sterilization equipment, such as UV germicidal lamps or ozone generators, to regularly disinfect the indoor air to ensure a sterile operating environment.

• Air Filtration System: The air is filtered through three levels of primary, intermediate and high efficiency filters to remove particles in the air and ensure the cleanliness of the air.

• Negative pressure environment: The negative pressure environment generated by the centrifugal fan makes the negative pressure inside the weighing room relative to the external environment, preventing the dust spillage during the weighing process.

• Even flow membrane air supply: the use of even flow membrane ensures even air supply and avoids adverse effects on the weighing results.

• Control system: Equipped with PLC control system, it realizes one-button operation, which is convenient for users to finish the weighing task quickly.

Options. 

1	Wind Speed Sensor
2	Differential Pressure Sensor
3	converter
4	touchscreens
5	PLC control
6	Polymer homogeneous membrane