How to use the power failure alarm?

Power failure alarm can be divided into remote alarm and on-site alarm.

1, remote alarm. The power outage alarm sends an alarm message through the host of the power outage alarm, through the fixed telephone or mobile phone number at home, or directly calls the owner. This requires buying a phone card or installing a telephone line.

2. On-site alarm. When there is a power outage, the power outage alarm can flash the horn and indicator light on site to remind users that there is a power outage and backup power is needed. At present, more field alarms are used in farms, cold storage and computer rooms.

Power failure alarm is composed of power failure detection module, built-in battery and power failure alarm host, which is mainly used in 24-hour production line and other places. It can detect 3-way mains power outage incoming call alarm, 1 way three-phase four-wire phase missing alarm, reverse connection alarm and open phase alarm. Support multi-standard mobile phone cards. Multiple sets of telephone alarms can be set to avoid the delay caused by 1 being inaudible.

Power failure alarm, also known as power failure alarm. The equipment is connected to the monitored power line power supply. When the power supply is cut off (power failure), it will be sent to SMS and dialed to the personnel on duty through the built-in mobile phone card of the power failure alarm. After receiving the phone call and short message, the alarm receiver can determine where to cut off the power supply (power failure), so as to inform the relevant personnel immediately when the power supply of the equipment fails, so as to deal with it in time and avoid or reduce the losses caused by power failure.

Extended data:

Power failure alarm is an active power failure alarm. When the commercial power is normal, the power failure alarm is in a waiting state; When the city loses power, the alarm will sound.

The power failure alarm is composed of four parts: mains detection circuit, photoelectric coupling circuit, voltage comparison circuit and chip sound circuit.

The main working procedure is to first detect whether the commercial power detection circuit supplies power, then make the photoelectric coupler judge whether the special triode is turned on or off through the photoelectric coupling circuit, then judge whether the output is high or low through the voltage comparison circuit to see whether the triode is turned on or off, and finally make a chip sound circuit, and adjust the frequency through one triode of the circuit, so as to realize the alarm sound of the speaker.

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