• Manual Variable Frequency System for Air Velocity

Neg Furls negative pressure weighing chambers are equipped with an advanced manual inverter system that allows the user to adjust the air velocity in the main working area as required, ensuring that the air velocity is always uniform, which is essential for maintaining a stable weighing environment.

• Superior air distribution

The product is designed with a highly efficient air distribution system, which, through the carefully designed air supply structure, realizes uniform air distribution throughout the working area, thus ensuring accurate and repeatable weighing.

• Liquid tank design ensures perfect sealing

The liquid tank design of Neg Furls negative pressure weighing chambers ensures a perfect seal against external contaminants, as well as easy maintenance and replacement of filters, ensuring long-term sealing and reliability.

• Consistency inside and out, no dead space

The design concept of the product emphasizes internal and external consistency, not only the appearance is neat and beautiful, but also the internal structure is equally tight, with no dead space for cleaning, which greatly simplifies the cleaning and maintenance work, and at the same time ensures the cleanliness of the weighing environment.

• Filter Differential Pressure Indicator

Neg Furls negative pressure weighing chambers are equipped with a filter differential pressure indicator, which monitors the operating status of each filter in real time to ensure the effectiveness of the filtration system, and provides an early warning mechanism to alert the user to replace or maintain the filter in a timely manner.

• Material Selection

Negative pressure weighing chambers are usually made from high quality stainless steel, mainly 304 stainless steel, which has good corrosion resistance and is easy to clean, making it ideal for use in laboratory environments that require frequent cleaning and sterilization. In addition, some models of negative pressure weighing chambers may also be made of other materials, such as 316 stainless steel, to meet specific corrosion protection requirements.

• Structural Design

The structural design of a negative pressure weighing chamber typically consists of a work area, a return air box, a fan box, an outlet air box, and an outer box. Among them, the design of the working area needs to ensure that the operator has enough space to carry out weighing operations, and at the same time to ensure adequate lighting and appropriate temperature and humidity conditions.

• Filtration system

The filtration system of the negative pressure weighing room is its core part, usually including primary filter, intermediate filter and high-efficiency filter, these three layers of filtration system can effectively remove particles in the air to ensure the cleanliness of the air. Especially the high-efficiency filter, 其效率可以达到99.99%@0.3μm, meets the test requirements of DOP or PAO to ensure the cleanliness of the operating environment.

• Control system

Most of the modern negative pressure weighing chambers are equipped with advanced control systems, such as PLC control, touch screen operation, etc., which can realize the adjustment of fan air speed and the control of lighting and power supply. Some models of negative pressure weighing chambers are also equipped with automatic monitoring and alarm functions, when the wind speed or differential pressure exceeds the set range, the system will automatically issue a warning to ensure the safety of operation.

The core function of the Neg Furls Negative Pressure Weighing Chamber is to maintain the internal air pressure at a lower level than the external air pressure by means of a highly efficient air filtration system. This design prevents the external environment from influencing the internal weighing process, such as the ingress of dust, bacteria, viruses and other contaminants.

Options. 

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