MOBILETT Plus HP SPR8-220.061.03 Page 8 of 10 Siemens AG
Rev. 03 09.03 CS PS 24 Medical Solutions
9 - 8 Replacement and repairs on the collimator
Light field relative to the X-ray field 9
• Load a 35 x 35 cm (14" x 14") cassette with film.
• Place the cassette on a table or a similar surface.
• Set a SID of 100 cm (39"). Use a measuring tape.
• Switch the main switch to position "B".
• Switch on the collimator lamp and align the cassette. Collimate the light field to 25 x 25
cm (10" x 10").
• Mark the four corners with coins and mark one of the corners with two coins (Fig. 13).
• Set 52 kV, 2.0 mAs on the control panel.
• Release an exposure.
• Develop the film and measure the deviation between the light and the radiation field.
Acceptable deviation ± 1.7% of SID (Fig. 14).
Equipment required: Cassette, X-ray film and coins
If the MOBILETT is equipped with a DAP measuring system,
remove the DAP ionization chamber first.
X-ray radiation!
If not observed, risk of radiation exposure.
Use radiation protection!
Fig. 15
NOTE
CAUTION
MOB00650
E
E
E
E
Rotary flange
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