SYSTEM AND METHOD FOR CONTROLLING AIRFLOW IN A LABORATORY OR FUME HOOD

摘要

The present invention pertains to a system for directing air flow in a fume hood (46) having a sash (14). The system comprises means or a mechanism (16) for producing an output control signal corresponding to a desired flow of air through the sash of the fume hood. The producing mechanism comprises a producing CPU (24) which actively produces the output control signal. The producing mechanism is to be disposed in fluid communication with the fume hood. The system also comprises means or a mechanism (18) for controlling air flow through the sash of the fume hood corresponding to the output control signal. The controlling mechanism is connected to the producing mechanism to receive the output control signal. The controlling mechanism comprises a controlling CPU (24) which actively produces a drive signal for operating the controlling mechanism corresponding to the output control signal.