Siemens AG SPR8-230.831.30.03.02 MOBILETT XP Digital
11.05 CS SD 24
Inspection and maintenance 55
Page 55 of 74
Medical Solutions
Fig. 23: Collimator lamp
3.4.2 Checking the illuminance
PMF Illuminance
• Log the illuminance.
If the light localizer is switched on for illuminating the radiation field, the average illumi-
nance must be at least 180 Lux at a distance of 100 cm. The average illuminance is deter-
mined in that measurements are performed approximately in the center of each of the four
light field quadrants (Fig. 24 / p. 55).
Fig. 24: Illuminance
3.4.3 Light field/radiation field
Checking the light and radiation field
• Place the detector (35 cm x 43 cm) on the tabletop.
Required measuring instrument:
- Lux meter