MAVIG Portegra2 Installationsanleitung Seite 49

This chapter provides suggestions on the dimensions, pivot points, and degrees of freedom of each pivot
point. This information should be reviewed prior to locating the Portegra2 and selecting the ceiling column.
NOTE: The information provided below for locating the Portegra2 system within the Scanner room and
selecting the ceiling column has been provided for guidance.
There are three dimensions (I,II,III/Fig. 31,33) to consider when locating the Portegra2 system:
I) the distance from the ceiling B
The optimal distance from the ceiling is for the low point of the Portegra2 (point B, Fig. 31) to be a few
cm / inches above the top of the gantry, so that when the gantry is pivoted it does not interfere with
used to satisfy this requirement.
A chart has been developed allowing you to select a ceiling column after taking some measurements
of the room. Please see Chart/Fig. 32 for selection of the recommended ceiling column based on the
Portegra2, unless your gantry is higher. If there is a false ceiling, be certain to measure all the way up to
the structural („real") ceiling or UniStrut
For rooms higher than 320 cm /126 in, we strongly suggest a ceiling construction between structural
ceiling and vertical column.
depth. Placement is shown in Fig. 33.
is based on the gantry depth, and is calculated to maximize the swing of the Portegra2 arm.
and gantry, and allows for unencumbered pivot of the gantry. Please see Fig. 33. Chart/Fig. 34
The position of the track must be decided locally due to any other ceiling suspended devices or obstacles
in the room. Make sure the potential for collisions with other objects has been eliminated.
CT Room Planning Considerations/Guide
II) the vertical distance
that will be used to mount the ceiling plate. Please refer to Fig. 31.
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III) horizontal distance