XPert weigh boxes

The XPert weigh boxes have inlet and outlet HEPA filters and provide a physical barrier to protect the operator from hazardous airborne particulates and powders in a leakfree environment. These boxes are easy to use, are economically priced, and come with many accessories to enable customization for specific applications. They feature a static-pressure gage to monitor HEPA filter loading, an anti-static ionizer fan that is mounted on the interior box to reduce static charge, and a balance vibration isolator for delicate weighing operations. Other features include a seamless, one-piece, molded polyethylene shell that provides chemical resistance and is  easily cleaned. The viewing window is made from 1/4-in.-thick laminated safety glass and is removable for loading equipment. The inner and outer transfer-chamber doors pivot upward and are counterbalanced and equipped with quick-latches. The main chamber boasts 13 ft3 of interior space and the transfer chamber has a 11-in.-nominal-dia. The XPert Weigh Box surpasses ASHRAE 110 standards, with average tracer gas levels at 0.05 ppm during perimeter scan testing. Airborne particulate cleanliness exceeds ISO Class 5 conditions and achieved ISO Class 3 conditions (equivalent to Class 1) at both minimum and maximum airflow volumes.