1.      Install the announciator according to the requirement.

2.      When the announciator is connected with the electricity supply, the green light will flashing, and the announciator is in the preheating station, and it cannot  work for the checking and alarming at this stage.

3.      4 minutes later, the green light stops flashing and keeps bright, then the announciator is in the normal detecting station .

4.      Alarming: when there is leaking gas with the dangerous consistency, the red light will flashing and the announciator will send out the alarming “di-di-di”sound.

Invalid alarming: if the sensor is damaged, the announciator cannot work normally. Then the red light will keep bright and the alarming will be send out all the time without stopping.

5.      Invalid alarming: if the sensor is damaged, the announciator cannot work normally. Then the red light will keep bright and the alarming will be send out all the time without stopping.