NOHKEN R7-XL, R7-ZL Rotating Paddle Level Sensor

When the power is applied to an R7 sensor, a motor powers a revolving shaft to which a paddle is mounted. When the material level inside the container reaches the revolving paddle, the paddle rotation is halted then the motor itself starts rotating around the shaft and activates and isolate SPDT micro switch. This removes power from the motor so that it stops rotating and an alarm signal is provided. When the material level falls below the paddle, the motor resets and the micro switch restores the revolving action.