| 摘要 |
PURPOSE: A fire monitoring system is provided to enhance an early alarm function and a fault alarm prevention function by using selectively an early alarm mode and a fault alarm prevention mode. CONSTITUTION: A fixing plate(10) is fixed on a ceiling and includes a connection terminal connected to a power supply. A control unit(20) includes a control panel(21) for controlling a heat sensor(51) and a smoke sensor(31), a fault alarm prevention mode for connecting serially the heat sensor to the smoke sensor, an early alarm mode for connecting the heat sensor and the smoke sensor in parallel to each other, and a mode selection switch(24) for disconnecting or connecting the fault alarm prevention mode from or to the early alarm mode. A smoke detection unit(30) includes the smoke sensor for sensing smoke. A cover plate(40) is coupled to the fixing plate in order to prevent the escape of the smoke detection unit. A heat detection unit(50) includes the heat sensor for sensing heat. |
