failure warning circuit 中文意思是什麼
failure warning circuit
解釋
故障警報電路-
Self - diagnose executed when tip temperature is below alarm level and heater or circuit board failure, warning signal and power off automatically
當焊咀溫度低於警誡線,發熱芯或線路板故障時,自診執行並發出信號提示及后自動關機
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