RT-03C - The microprocessor rotation speed controller RT-03C ARO measures temperature in the chamber of the stove inlet fan, determines its rotational speed and controls the flow of hot air. Regulation of the operation is made in two modes: manual or automatic one. In the manual mode, the speed of rotation is determined on a scale of 0 to 10. The temperature measurement doesn’t affect the change of the motor speed. In the automatic mode, the fan motor speed is adjusted automatically depending on temperature measurements. After the temperature exceeds 40 ° C, the fan switches to minimum speed. As the temperature rises the speed proportionally increases, reaching the maximum at 80 ° C. In the automatic mode, the controller display shows the current temperature readings.