Local Contrast Adjustment

To give the user the possibility to adjust the contrast of the Extension Module locally the following procedure is defined.

Entering the Contrast Adjustment

To access the contrast settings the user has to press simultaneously the upper left and lower right button for at least 5 seconds.

Contrast Adjustment

If the user has entered the settings both buttons on the bottom of the Extension Module are used for changing the contrast.

• Left button: "-" also labeled on the display
• Right button: "+" also labeled on the display

Pressing on the of the buttons is changing the contrast of the display.

Leaving Contrast Adjustment

The menu is left, as soon as the user has pressed an other button the the defined one.

The current setting for contrast is saved and the defined display content is shown.