Chapter 3 Calibration
HF Series X-ray Generators - Service Manual Revision W
Quantum Medical Imaging, LLC 3-33
IMPORTANT! Always place a cassette in the
holder when taking any measurements or when
calibrating, even if the calibration step does not
require a film to be exposed.
Film Speed Setting on non-AEC Systems
The following procedure applies only to generators not equipped with auto-
matic exposure control (AEC) option. The factory default film speed setting
for the wall 72", wall 40" and table 40" receptors is 400. If the facility uses a
film with speed other than 400, it is necessary to set the generator for the
appropriate film speed. Proceed as follows:
1. From the Service Calibration Menu (see Figure 3-24), press the key next
to AEC Calibration field. The AEC Calibration Menu screen is displayed:
Figure 3-26. AEC Calibration Menu
2. Using the up and down keys next to the film speed field, set the film
speed to the desired value.
3. If desired, the film/screen combination name can be edited. For exam-
ple, the system default "Wall 40" film/screen combination name may be
changed to "Kodak", "AGFA", or to whatever text is required. For instruc-
tions on film/screen combination name editing, refer to "Editing a Film/
Screen Combination Name" procedure in the AEC calibration section of
this chapter.
4. Repeat above steps for both wall and table receptors, as necessary.
FILM
SPEED
ADJUST-
MENT KEYS
FILM/
SCREEN
COMB-
INATION
SELECTION
KEY
EDIT FILM
SCREEN
NAME KEY