我们利用一个闹钟可实现毫伏计完全退火自动关闸,其改装方法见图。使用时将油丝盘卡子5末端稍带紧(只要秒针不走即可),将时针和分针都对准12点,按具体保温时间将闹针指向具体时间,到时后闹钟工作,闹铃钮子就把限位开关通向电源输 We use an alarm clock millivoltmeter can be fully automatic annealing gate closed, the conversion method shown in Figure. Use the end of the oil pan clip 5 slightly tight (as long as the second hand can not go), the hour and minute hands are aligned at 12 o’clock, according to the specific holding time will be aiming for a specific time to the alarm clock to work after the alarm The button put the limit switch to the power input