General view of the control panel:

Information on the display:

Steps to follow for disinfection cycle:

1. Plug on the Arduino's power supply => the LCD display should light on
2. Plug on the power mains of to the electrical parts (UV-C ballast and Heater)
3. Close the box 
4.  Select the disinfection mode you want to use by pressing the "Mode" push button. The mode selection will change at each press:

 5) If the selected mode is “UV-C only”, go to step 11 (CYCLE “UV-C ONLY”)

CYCLES WITH HEAT:

6) Turn the power switch to “ON” (it should light in red)

7) Wait for the temperature to reach 70°C.

8) When the temperature is near 70°C, turn the power switch to “OFF”, open the box and place the masks to be disinfected inside. Then close the cover and turn the power switch to “ON” again.

9) If the temperature is still above 65°C, you can start the cycle directly by pushing the Start/stop button. If the temperature is too low, there is a message "Low Temperature" on the display: just wait for it to reach 65°c and do it again.

10) From that point the cycle is on the run for 30 minutes, there will be a sound signal and the message "END" at the elapsing time. Press the start/stop button to be ready for a new cycle. Remark: if you press the start/stop button during the cycle, it will be reinitialized.

CYCLE “UV-C ONLY”:

11) Open the box and place the masks to be disinfected inside. Then close the cover and turn the power switch to “ON”.

12) Start the cycle directly by pushing the Start/stop button.

13) From that point the cycle is on the run for 30 minutes, there will be a sound signal and the message "END" at the elapsing time. Press the start/stop button to be ready for a new cycle. Remark: if you press the start/stop button during the cycle, it will be reinitialized.

Alarms and Error message:

During all the process, the system will check error conditions, in the case of error condition it will make a sound signal and display "ERROR" which means the error state.

ERROR conditions:

• Low light intensity during  “UV-C only” or “Heat + UV-C” cycle
• Temperature too low or too high when the selected mode is “Heat only” or “Heat + UV-C”

Other indications:

• Heat Relay State: displays ‘*’ when the relay is turned ON (power to the heater)
• Humidity: the system doesn't actively command the humidity level, but this information can be relevant to check, according to some studies about the masks disinfection using heat.