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User Interface
Automatic Collimator Control
3.2.1.1 Collimator Mode
1
Fig. 3-5 Collimator mode
When Automatic mode is selected, the predefined values of the collimator light / x-ray field
size and the filter selection are set automatically when the anatomical protocol is selected.
Both the light / x-ray field size and the filter can be changed when needed. In automatic
mode the maximum light / x-ray field size is restricted to the maximum active area of the
imaging unit.
When manual mode is selected the size of the collimator light / x-ray field size can be
adjusted outside of the maximum active area of the imaging unit. When a new anatomical
protocol is selected (for the same patient) the collimator light / x-ray field size or the filtration
is not changed even if size and filtration is defined different in the protocol.
When changing from Manual mode to Automatic mode the collimator light / x-ray field size
and filtration is restored to the values that were selected when changing from automatic to
manual mode. Example:
• Automatic mode: Size: 30 cm x 10 cm; filter 1.
• Changes to Manual mode. Changes: Size: 30 cm x 20 cm, filter 2.
• Changes back to Automatic mode: Size 30 cm x 10 cm, filter 1.
When a new patient is selected Automatic mode is automatically activated.
OMNERA 500A
In automatic mode, the collimator light
height and width is set from the anatomical
program. The collimator light size can still
be changed manually. In manual mode the
collimator light height and width is not set
from the anatomical program.
1. Automatic mode
2. Manual mode
2
1000-095-071-EN Rev. 2.1
Page 48
Operator´s Manual
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