7 Finally, press the Menu key to return to the main menu. Examples of How to Use the Front Panel 19 6 Press the Up key ( ∆ ) to change the drying time selection from 1 to 2 minutes . Then press Enter to set the two-minute drying time. If the front-panel Buzzer is set On, there will be a short ‘beep’ to confirm the change. The value will be confirmed by a tick mark at the right (“ √ ”).