kudretuzuner
Newbie
Hello, I wasn't able to share archives for a long time. I shared a very useful and tried-and-tested work without using an MCU. This heater is adjusted to the desired temperature with a thermostat. The counter (minute) is not activated when the system is started. Whenever the thermostat relay drops, the timer starts and the system shuts down after the time selected in the mechanical counter. Meanwhile, switching the thermostat on and off does not affect the timer. Commercially, this study is the working principle scheme of the (BIODENT) oven used by dentists and dental technicians (an average of 25-30 years ago).