User`s manual

doc-3302-2 OverView mDR50-DL (May 2003) 10-6
The screen of OVERVIEW MDR50-DL can be viewed at angles greater than 45 degrees without
problems. The vertical viewing angle has been designed such that there is no difference whether
the observer is standing or sitting.
In addition to the viewing angles, the room illumination should also be considered when installing
O
VERVIEW MDR50-DL. Diffuse ambient light measured horizontally up to 300 lux and vertically
up to 500 lux is no problem if the displayed image has a sufficiently high contrast.
Figure 10-1
room illumination
10.4 Room Ventilation
The room must be ventilated such that the room temperature is in the specified range. The electri-
cal power consumption of typically 210 W (cold standby) or 350 Watts (hot standby) per illumi-
nation unit can be used as a measure for the heat dissipation of O
VERVIEW MDR50-DL into the
room.
It is favorable to pass fresh and clean air through ventilation ducts in the floor below the structure.
The inlets should be provided with replaceable dust filters.
The electronic boards are very sensitive against being soiled with particles of e. g. carbon. Carbon
dust is taken up by the circuit boards thus causing short-circuits. When installing O
VERVIEW
M
DR50-DL in critical environments like coal-fired power stations etc. please make sure that there
are no coal particles suspended in the air.