电池欠压报警功能；
报警功能：声响报警并停机；报警内容：缺相，欠压，过压，高温，紧急停机。
Alarm function: sound alarm and stop machine. Alarm content: lacking phase, under-voltage, overvoltage, high temperature and urgent stopping.
研制以P 87lpc768单片机为核心的电动代步车智能控制器，具有过流、欠压保护及调速电位器、和刹车故障保护及报警功能。
An intelligent electric scooter controller with P87LPC768 MCU has functions against over current, lower voltage, pot and brake faults protection against open or shorted wires.
通过LED显示器显示电压、电流、电度的实时值，当过压30%、过流30%、欠压30%时进行声光报警，并能通过串行口结合有关通信协议，实时与管理计算机进行通信实现远程户外抄表。
The functions are LED displaying, alarming when 30% over-current, over-voltage and under-voltage occurring, and communicating with the management computer through the series port with some protocols.
水冷系统具有断水、欠压、水路超温报警及保护功能。
Water-cooling system with water, under-voltage, water-temperature alarm and protection.
高压泵自动欠压保护，当供水泵的海水压力低于0.05Mpa 时，设备自动停机并报警。
High pressure pump equipped with low-pressure protection device, when pre-treated sea water pressure is less than 0.05Mpa, the system will shut down automatically give alarm fattention.
高压泵自动欠压保护，当供水泵的海水压力低于0.05Mpa 时，设备自动停机并报警。
High pressure pump equipped with low-pressure protection device, when pre-treated sea water pressure is less than 0.05Mpa, the system will shut down automatically give alarm fattention.
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