Uses 4-wire connection with 2 wires to line voltage and 2 wires to SPST control switch.
采用4线，2线连接到线电压，2线连接到单刀单掷控制开关。
The temperature sensors, start switch S1, and current control potentiometer are all connected to the board using servo lead wire (available at many hobby shops in 10 foot lengths).
温度传感器，启动开关s1的，和电流控制电位器都连接到局用伺服引线(可在许多商店的嗜好，在10英尺长度)。
The vibration exciter is connected with the control switch by the wire.
连 接电线连接激振器和控制开关；
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