52 Adjustments / Programs
SIREMOBIL Iso-C SPR2-230.840.01.01.02 © Siemens, 2008
08.08 CS PS SP
Page 52 of 148
For internal use only
Collimator, X-Iris 5.5
NOTE
Because of the mechanical hysteresis of the semi-transpar-
ent slot diaphragm, open the collimator blades to maximum
aperture prior to adjusting the radiation iris.
WARNING
X-ray radiation!
¹ See (Safety information / p. 11).
¹ Radiation protection is required. Wear a lead apron.
x Attach the center cross in the center of the image intensifier input screen.
x Connect the service PC to the serial interface of the SIREMOBIL Iso-C.
x Start the service program.
x Select the "Adjustment, Calibration" menu.
x Answer the query with "yes".
x Select "X-Iris" in the "Function Groups" combo box.
x In the window "Available Functions:" select "1. Init (Limits Off / Autosearch)" and click
Execute.
x Close the status window by clicking the OK button.
x For the query "Do you want to reset the Unit", click "No".
x The X-Iris can now be completely opened and closed with the X-Iris keys.
x Select I.I. survey format.
X
x During fluoroscopy, adjust the X-Iris by opening and closing it with the X-Iris keys so
that the collimator blades are still visible along the edge of the I.I.
x Select "2. II. - Full Format Position" on the service PC and click "Execute".
x Close the status window by clicking the OK button.
x For the query "Do you want to reset the Unit", click "No".
x Switch to zoom format.
X
x During fluoroscopy, adjust the X-Iris by opening and closing the X-Iris keys so that the
collimator blades are still visible along the edge of the I.I.
x Select "3. II. - Zoom Format Position" on the service PC and click "Execute".
x Close the status window by clicking the OK button.
x For the query "Do you want to reset the Unit", click "No".
x Open the X-Iris completely.
x Select "4. CEX Position" on the service PC and click "Execute".
x Close the status window by clicking the OK button.
x For the query "Do you want to reset the Unit", click "No".
x Close the X-Iris completely.
X
x Release fluoroscopy. The X-Iris must close to < 4.5 cm .
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