The importance of installing smoke alarms is a reminder of the fire in changle

   At 9:20 am on December 19, a fire accident occurred in a workshop of the industrial development zone of changle county, weifang, shandong province. At present, fire has been put out, seven people have been killed and four injured. The cause of the accident is under investigation. Remind everybody must install smoke inductor alarm, especially the enterprise should pay attention more, don´t see the unremarkable smoke alarm the key moment can play a big role.

    The jty-gd-dg802 independent photoelectric smoke detector has been completed mainly by optical maze, with a set of infrared emission and receiving photoelectric tubes in the maze, and the Angle of the firing Angle is 135 degrees. When there is no smoke in the environment, the receiving tube receives the infrared light emitted by the infrared transmitting tube, and the subsequent sampling circuit has no electrical signal changes. When environment have a smoke, the smoke particles into the maze to tubes of infrared light scattering occurs, the intensity of the infrared light scattering has a certain linear relationship with the smoke concentration, subsequent change sampling circuit, through the smoke detector built-in MCU to judge whether these changes to confirm the amount of fire, once the confirmation of fire, smoke detector signal fire, the fire light (red) light, and start the buzzer alarm.