2. Pre-Installation requirements
Barco – OverView cDG67-DL – R5976624– installation manual – Revision 03 – August-2005
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2-1
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Pre-Installation requirements
2.1
Power and grounding
Attention has to be paid to the electrical installation. Earth current loops in the installation must be avoided. The
neutral power conductor of the electrical net and the grounding conductor must be separated.
All circuits have to use the same ground level (also indirectly connected equipment). If possible all circuits should
come from the same phase.
Each projector has specific power requirements. (see technical specification projectors) Enough circuits have to be
available. These circuits have to be fused (16A typical for 220V). The number of projectors starting up
concurrently must be limited. One could for instance install an automatic circuit that starts up all the projectors in
batches per circuit, leaving 3 second between the different batches. (Not standard delivered)
The projectors should be kept away from strong sources of magnetic fields.
Fused circuits for the graphic generator equipment have to be installed. The number depends on the amount of
installed equipment.
Some of the graphic generator equipment functions as a Unix workstation. It must not be powered off without
carefully closing all the applications. If these units are switched off during normal operation without this
precaution, there is a risk that the file system gets corrupted and it becomes unusable. Therefore it is strongly
suggested to provide a non-interruptible Power Supply (UPS) to power these units.
Additional grounding points must be foreseen for the display wall construction, racks and other mechanics.
Power outlets for installation purposes are required as well.
All connections, power, network should be available and functional before start of the installation.
2.2
Environmental conditions
2.2.1
General conditions
The temperature and the humidity in the control room have to be controlled on the both sides of the wall.
The screens require a temperature between 17 and 27 dgc and humidity between 40 – 60 % RH. The maximum
temperature fluctuations have to be limited up to 5dgc per hr.
The projector units operate between 10 and 40 dgc. The thermal dissipation of the projector units has to be
taken in consideration. The projector units have built-in temperature detection and will switch off automatically
when the temperature limits are exceeded.
The graphical generator equipment operates between 10 and 40 dgc. In case these products are mounted in a
rack the max room ambient temperature has to be limited to max 25 dgc or additional forced cooling has to be
foreseen in the rack.
The materials and products can be stored between -30 and 65 dgc and humidity below 95 % RH, non-
condensing. Screens have to be stored below 40dgc.
24hrs prior to installation the screens have to acclimatize to the control room conditions. They can stay in their
protective packaging during this acclimatize period.
The temperature and humidity conditions in the control room must be within specification during installation and
maintained afterwards.
The room has to be dust-free during the installation and maintained afterwards. The control room must have an
acceptable dust class of 100000 or better. (100000 particles of 0.5µm or larger per cubic feet, comparable with
clean desk room).
All construction, reconstruction, decoration activities must be completed before the installation of the system.
However the trim around an integrated wall can only be mounted after completion of the wall. All precaution
should be taken to avoid any damage during the mounting of the final trim. The purchaser bears the
responsibility for any damage or degeneration during this operation.
