8 Chapter 1
The display contrast on all dmq units is digital.
Touch the white dot located in the center of the
vertical scrolling bar between the
-
keys
and a contrast window will open. Move your
finger towards the top and or bottom of the
dotted line to adjust the contrast on your display.
Figure 1.7: Display contrast adjustment
To lock the keypad place your finger on the white dot located in the
center of the horizontal scrolling bar between the
-
keys.
Move your finger to the right following the dotted line and a window
on the unit display will open with the message
Lock
(see figure 1.8
).
Continue moving your finger in the same direction until you enter
blocked mode. The window on the display will close and the blocked
keypad indicator will show on the top right of the unit screen.
Figure 1.8: Locking the keypad
