CPI CMP 200 Series Service Manual page 208

CPI Canada Inc.
3D.3.0 AEC CALIBRATION (TABLE BUCKY) Cont
Step
3. Open up the collimator to expose all three fields of the AEC pickup. Ensure that the central ray remains centered relative to the
image receptor.
4. Place the absorber (with thickness selected for 75 kV per table 3D-8) in the X-ray field, ensuring that the radiation is COMPLETELY
blocked by the absorber.
Step Action (membrane console)
5.
Ensure that in the RECEPTOR SETUP
menu, each receptor has the desired AEC
channel assigned
RECEPTOR SETUP in chapter 3C.
6. In the RECEPTOR SETUP menu, set
MEMORY to NO for each image receptor.
This will ensure that the next receptor
being calibrated will not remember the
techniques from the previous receptor.
The MEMORY function may be reset as
desired after AEC calibration is completed.
7.
In the RECEPTOR SETUP menu, ensure
that the AEC BACKUP MAS and AEC
BACKUP MS are set sufficiently high that
the generator backup timer will not
terminate the exposure.
8. From the GEN CONFIGURATION menu,
select AEC CALIBRATION.
9.
From the AEC CALIBRATION menu,
select FILM SCREEN 1 (the slowest film
screen combination).
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®
CMP 200 Service Manual
Ensure that in the Receptor Setup
window, each receptor has the desired
to it. Refer to AEC channel assigned to it. Refer to
RECEPTOR SETUP in chapter 3C.
In the Receptor Setup window, under the
Receptor Properties tab, set Memory to
off for each image receptor. This will
ensure that the next receptor being
calibrated will not remember the
techniques from the previous receptor.
The Memory function may be reset as
desired after AEC calibration is completed.
In the Receptor Setup window, under the
AEC tab, ensure that the AEC Back-Up
mAs and AEC Back-Up ms are set
sufficiently high that the generator backup
timer will not terminate the exposure
Select the AEC Setup & Calibration
window.
On the main AEC Calibration window,
select Film Screen 1 (the slowest film
screen combination).
Ch # 901476-05 Rev. A
Action
Action (PC GenWare®)
AEC Calibration
Action (Touchscreen GenWare®)
Ensure that in the Receptor Setup
window, each receptor has the desired
AEC channel assigned to it. Refer to
RECEPTOR SETUP in chapter 3C.
In the Receptor Setup window, under
the Receptor Properties tab, set
Memory to off for each image receptor.
This will ensure that the next receptor
being calibrated will not remember the
techniques from the previous receptor.
The Memory function may be reset as
desired after AEC calibration is
completed.
In the Receptor Setup window, under
the AEC tab, ensure that the AEC Back-
Up mAs and AEC Back-Up ms are set
sufficiently high that the generator
backup timer will not terminate the
exposure
Select the AEC Setup and Calibration
window.
On the main AEC Calibration window,
select Film Screen 1 (the slowest film
screen combination).
Page 3D-15
3D