
Chapter D - ADJUSTMENT & CALIBRATION
D-34 Planmeca Proline XC X-ray unit
AUTOMATIC EXPOSURE CONTROL (AEC) CALIBRATION
Technical Manual
6 AUTOMATIC EXPOSURE CONTROL (AEC)
CALIBRATION
NOTE
In case the X-ray unit is equipped with optional Automatic Exposure Control (AEC), the
AEC calibration must be performed after X-ray unit installation, after the AEC retrofit kit
installation and whenever the panoramic X-ray beam is adjusted. The AEC calibration
is performed after the panoramic X-ray beam adjustment.
Perform the AEC calibration in the following order:
1. Check/adjust the panoramic X-ray beam.
2. Adjust the positions of primary collimators number 0 and 1 so that the AEC signal value is
as large as possible.
3. Adjust the base value so that the film density is 1
.0 ±0.1 OD
.
4. Adjust the AEC detector offset value (base signal) to value 8 ±2. The offset value is shown
on the main display when the unit is in the AEC mode and no exposure is taken.
5. Adjust the AEC-signal value to approx. 60. During the exposure this AEC-signal value is
shown on the main display.
6.1 Checking/adjusting the primary collimator position
After the panoramic X-ray beam adjustment the AEC-signal must be checked. The position of
the collimator must be adjusted so that the AEC-signal value is as large as possible.
Enter the service settings mode. From the list of service settings select Test exposure.
Figure 60
Содержание Proline XC
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