What are the common failure problems of sound and light alarms? What is the corresponding maintenance method?

Sound and light alarm failure 1: Turn on the power, no sound and light alarm output.

Treatment:

Open the sound and light alarm, check the wiring base, wiring board part of the power input is correct. If the power input is normal, check whether the fuse on the terminal board and circuit board has been blown (F1/F2). Other conditions please.

Audible and visual alarm fault 2: alarm indicator light, no alarm sound.

Treatment:

Replace the piezo buzzer , or replace the speaker.

Acousto-optic alarm fault 3: alarm rotating light does not light, alarm tone, light within the turntable rotation.

Treatment:

Replace the bulb in the rotating lamp.

Acousto-optic alarm Note:

1. Acousto-optic alarm connected to the cable core cross-section should not be less than 1.0mm

2. Access to the power supply, do not be AC, DC input power supply connected to the wrong, can not be accessed at the same time AC220V and DC24V power supply, otherwise the equipment will be damaged.

3. After installation and wiring, the cable locker must be tightened to prevent rainwater from penetrating.