本视频演示了如何将万用表表笔与电源接地线串联,以测量数据采集器的总电流消耗。测量数据采集器的电流消耗至关重要,这既有助于估算电池使用寿命,保障数据采集器在预期时长内稳定运行、无需频繁更换电池,同时,若电流消耗高于预期值,则可能意味着数据采集器本身或其连接的传感器存在故障或异常。
本视频演示了如何使用数字万用表检测导通性。导通性指的是电路中存在能让电流流通的完整通路。导通性检测有助于判断熔断器是否正常或已熔断,还能排查导体之间是否存在短路问题。本视频中使用万用表检测的是数据采集器正面接线面板上各接地端子之间的导通性。
这是一个全新视频系列的开篇内容,该系列聚焦于 Campbell Scientific 数据采集器及其外接设备的故障排查。首个视频演示了如何使用数字万用表测量数据采集器的输出电压。
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