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1 故障现象 按计数键或重复计数键,仪器不进入计数状态(计数状态指示灯一直为红色而没有转变为绿色),面板洗净灯频繁显示。
1 fault phenomenon Press the count key or repeat the count key, the instrument does not enter the count state (the count status light has been red and has not changed to green), the panel wash light is frequently displayed.