User Interface
Automatic Collimator Control
3.2.7.3 Wall Flexible Mode
General Description
The Wall Flexible mode is intended for examinations toward a Wallstand.
The OTC will upon activation of the servo button move to the programmed position associ-
ated with Wall mode. The stand will stop at the transport height and wait for a change in posi-
tion of the Wallstand (detector height). When a change in position is detected (the user
moves/drives the Wallstand up or down) the OTC will move downward and start tracking the
position of the detector.
The value is constantly updated as soon as the Wallstand/OTC is moved. It is possible for an
operator to change the position so the value cannot be calculated or would be incorrect; in
those situations the display will clear the field for the value.
No Wait
At the installation of the System it is possible to select, that the OTC shall not wait for the
user to move the Wallstand before tracking starts. The OTC will then start the tracking as
soon as it reaches its final position.
Exposure Validation
Exposure is allowed if the stand is not moving, operating properly (not in an error state) and
the servo button is activated.
3.2.7.4 Table Flexible Mode
General Description
The Table flexible mode is equal to Auto positioning mode with functionality added for track-
ing the height of the Table (compare with Wall flexible mode). The mode is intended for Table
examinations.
The stand will upon activation of the servo button, move to the programmed Table mode po-
sition and start tracking the Table height, thereby keeping the film focus distance constant.
The Film focus distance shown in the display is the actual distance to the detector. The Table
position in the room is set during the installation of the System.
Exposure Validation
Exposure is allowed if the stand is not moving, operating properly (not in an error state) and
the servo button is activated. Movement is allowed in X and alpha direction.
3.2.7.5 Film Tracking Mode
General Description
The Film Tracking mode functions as the Table mode with added functionality for controlling
the position of the detector in one direction. The mode is intended for fast and easy position-
ing with the X-ray tube always aimed at the center of the detector.
The motorized detector holder will move the detector to the right position. The stand will upon
activation of the servo button move to the pre-programmed Film-tracking position and start
tracking the Table height, thereby keeping the film focus distance constant. The film focus
distance shown in the display is the actual distance to the detector. When Film Tracking
mode is chosen all buttons except X and alpha-brake buttons will be deactivated. The tube
stand is operated manually by releasing one or both of the brakes. The position of the detec-
tor is changed according to the change in X and or alpha position of the tube. That is the X
and alpha positions can be changed independently.
Exposure Validation
Exposure is allowed if the stand is not moving, operating properly (not in an error state), the
X-ray tube is aimed to the center of the detector and the servo button is activated.
Operation Manual
1000-095-051-EN Rev. 1.1 ARCOMA AB
2020-06-16 Page 57 SWEDEN
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