How to use the power outage alarm?

Power outage alarms are divided into two methods: remote alarm and on-site alarm.

1. Remote alarm. The power outage alarm sends an alarm text message or directly makes a call to the owner's phone through the power outage alarm host through the home fixed phone or mobile phone number. This requires the purchase of an additional phone card or the installation of a phone line.

2. Alarm on site. 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 that solutions such as backup power supply are needed. At present, there are more on-site alarms on the market such as breeding farms, cold storages, computer rooms and other places.

The power outage alarm consists of a power outage detection module, a built-in battery, and a power outage alarm host. It is mainly used in production lines and other places that operate 24 hours a day. It can detect 3 channels of mains power outage and call alarm, and 1 channel of three-phase four-wire phase loss, reverse phase and phase failure alarm. Supports multi-standard mobile phone cards. Multiple groups of telephone alarms can be set to avoid delays caused by one person not hearing the call.

Power failure alarm, also known as power failure alarm. The device is connected to the monitored power line power supply. When the power supply is outage (power outage), it sends text messages and dials to the personnel on duty through the built-in mobile phone card of the power outage alarm. After receiving the phone calls and text messages, the receiving personnel can determine where the power is outage ( Power outage), to achieve the purpose of immediately notifying relevant personnel as soon as the power supply of the equipment fails, so as to handle it in a timely manner and avoid or reduce losses caused by power outage.

Extended information:

The power outage alarm is an active power outage alarm. The power outage alarm is in a waiting state when the city power supply is normal; when the city power outage occurs, the alarm will sound an alarm.

The power outage alarm is composed of four major parts, namely the mains detection circuit, the photoelectric coupling circuit, the voltage comparison circuit and the chip sound circuit.

The main working procedure is to first detect whether the power is supplied through the mains detection circuit, and then through the photoelectric coupling circuit, so that the photoelectric coupler determines whether the special transistor is on or off, and then through the voltage comparison circuit to determine whether the output It is high level or low level to see if the triode is on or off. Finally, there is the chip sound circuit. A triode in this circuit adjusts the frequency, so that the speaker emits an alarm sound.

Baidu Encyclopedia-Power failure alarm