OEC 9800 Periodic Maintenance Procedure
35
Functional Inspection
C-Arm Controls
WARNING
:
Some of the following procedures produces X-rays. Take appropriate precautions.
1.
Press the X-ray on switch and verify the following Image Orientation functions:
a.
Image rotation key rotates the image clockwise and counter-clockwise.
b.
Image Invert key inverts and reinverts the image.
2.
Press the field size key to change the field size: NORM, MAG1 and MAG2.
3.
Using the Converging Line pairs/millimeter (lp/mm) tool on the Image Intensifier, verify the resolution in lp/mm is
equal to, or greater than, the values listed below:
9
″″″″
II / 60HZ
9
″″″″
II / 50HZ
12
″″″″
II / 60HZ
12
″″″″
II / 50HZ
NORM
≥
2.3
NORM
≥
2.3
NORM
≥
1.7
NORM
≥
1.7
MAG1
≥
3.2
MAG1
≥
3.2
MAG1
≥
2.3
MAG1
≥
2.3
MAG2
≥
3.8
MAG2
≥
3.8
MAG2
≥
3.0
MAG2
≥
3.0
4.
Press the SAVE key to save the left monitor image to the Workstation hard-drive.
5.
Press the SWAP key and verify the image on the left monitor shifts to the right monitor.
6.
Press each of the following collimator switches and verify that the graphical icon indicates the correct collimator
function:
