热水器有自动控制功能，当水达到设定温度的时候就自动断电了。
The water heater has self-control functions and cuts off power after the water temperature reaches the setting.
使用：接好电源、负载及热电阻线后，按下温控器电源开关，温控器即可自动投入定温控制运行。
Operation: Once get power supply, loads and thermal resistors connected, press the power switch of temperature controller, and then it will start temperature control program automatically.
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