| 摘要 |
The housing (1) of the detector is fixed to a wall (13) in a corner. On the ceiling, held by clips (11), is a pipe (15) which continues on the wall up to the housing, with holes (18) near the ceiling for the air in the room to pass into the pipe. At the free end, the pipe is closed by a cap (12), and, in the direction of the flow, the pipe enters through an air inlet (4) into the housing, the arrows giving the direction of flow which is guided, as the main air flow (8), into the outlet opening (5) and out of the housing. The housing accommodates a sensor (3) and a blower (2), the sensor having two slots (6,7) through which the blower draws the main air flow. The continuity of this air flow is monitored by the sensor (14). |
