| 摘要 |
Abstract A system for controlling a fume cupboard (100), the system including: a sash (104) arranged for motorised movement between a stand-by position and 5 an open position that enables an operator access to a compartment (102) of the fume cupboard (100)while partly protected by the sash (104); and a sensor array (270, 273) for detecting the presence of a an obstacle; and a control means (110) for enabling control of the sash (104); whereupon the sash (104) moving from the open position and said detection, a signal is sent from the sensor array (270, 273) to the control means (110) and 10 a further signal is sent from the control means (110) to a sash drive means (260) to reverse the direction of the sash (104) or stop movement of the sash (104). ~lG.NO |
