alarm relay

英 [əˈlɑːm ˈriːleɪ]

美 [əˈlɑːrm ˈriːleɪ]

报警继电器

An LED indicator illuminates, and primary alarm relay triggers, when the RF field exceeds the preset limit.
当RF领域超出边框形式极限时，LED显示照亮和主要警报中转触发器。
A method which realized sound-light alarm based on the sound card of computer and relay controlling circuit were introduced.
介绍了自制式液氯充装报警系统：利用光电控制器改造原有的液氯包装用衡器，进行充装上限报警。
Note that an alarm relay in the controller is not sufficient protection for all eventualities.
注意；控制器内的报警继电器不是在任何情况下都能提供有效保护。
Analysis of fault alarm signal on the optic-fiber communication channel multiplexed with relay protection
光纤通信复用继电保护通道告警信号实例分析
Warning information message is about alarm information message sent by relay protection devices.
预告信息报文是指继电保护设备发出的报警信息报文。
The entire alarm system consists of the control centre, wireless data relay stations and terminal controller.
整个警报系统由无线发放控制中心、无线数据中转站、终端执行控制器三部分组成。