User's Manual

Page 11 of 26
− Adjust the brightness so that image sections with 5% and 0%
blackness still visibly contrast from one another.
− Adjust the contrast so that image sections with 95% and 100%
whiteness still visibly contrast from one another. To adapt the luminosity to
the ambient lighting, adjust the backlight brightness (note: 180 cd/m²
factory setting is then modified).
4.5 Screen saver
A screen saver function should be used in order to reduce "image sticking"
which can occur in TFT displays.
It is high risk to display a static graphic over half an hour.
Image sticking is the effect where a faint image of the previous screen
contents can still be seen after the display contents have changed. By
using a screen saver with permanently changing screen contents,
unnecessary effects of the same image are avoided.
If the keyboard is locked, contact the servicing department in order to
unlock it. The guarantee is cancelled if you unlock it yourself!
5. Connections
5.1 Connecting the flat panel display
Note
All screening precautions contained in the corresponding EMC guidelines
must be observed. If these guidelines are not observed, interference
signals could penetrate the monitor.
Information on cable installation
Only screened cables are permitted for the signal connections.
All connectors should be of screw or locking types (as far as possible).
Signal and power cables must not be routed in the same duct.
The display must not share a power supply with motors or valves
(glitches!).
5.2 Connection panel
A connection panel for the signals and power supply is located at the rear of
the flat panel display underneath the little cover.