Quantum ODYSSEY HF Series User Manual

Appendix B Calibration (DiRex System)
HF Series X-ray Generators - Service Manual Revision W
Quantum Medical Imaging, LLC B-19
4. The "Type" setting determines if the ion chamber connected to the
selected receptor AEC output is of the "slope/ramp" (Slope) or a DC Level
(Level) type. This setting is ignored unless the "Universal AEC" selection
is chosen. The "Standard AEC" board should always be set to Slope.
5. The "Polarity" setting (+ or -) should correspond with the polarity of the
ion chamber on the selected receptor port (i.e., a (+) positive logic
[active high] or (-) negative logic [active low] model). The positive logic
model presents a DC voltage or ramp ranging from 0 to some positive
voltage to indicate exposure value. The negative logic model presents a
DC voltage or ramp ranging from 0 to a negative voltage. This setting is
ignored unless the "Universal AEC" selection is chosen. The "Standard
AEC" board is always +.
6. The "Output" setting determines the sense of the signals that select the
individual field for the chamber. If "Output" is set to Normal, the idle
(non-PREP/EXPOSE) state of the individual field selection is "1" and the
state during PREP/EXPOSE is "0" if the field is selected (called "Low
Active"). If "Output" is set to Inverted the idle (non-PREP/EXPOSE)
state of the field selection is "0" and the state during PREP/EXPOSE is "1"
if the field is selected (called "High Active"). This setting is ignored unless
the "Universal AEC" selection is chosen. The "Standard AEC" board is
should always be set to Normal.
7. The "Wall Relay" setting controls whether or not the "Wall Relay" on the
Universal AEC Board A11 AY40-027S is energized. Similarly, the "Table
Relay" setting controls whether or not the "Table Relay" on the Universal
AEC Board A11 AY40-027S is energized. These settings provide +28 VDC
output for operation of a Siemens bucky. If this field is set to On, the
relay is asserted when:
• The WALL or TABLE receptor button that selects this receptor is
depressed on the OCP or
• When a pre-programmed (APR) technique requests this receptor
The wall or table relay will remain energized until a receptor with "Wall
Relay Off" or "Table Relay Off", respectively, is selected. Depending on
the configuration of the generator, set the receptor relays as indicated in
Table 3-2 or 3-3.
8. Press the Back button on the lower left side of the screen. The system
returns to the Configuration Menu (see Figure 3-8).
IMPORTANT: The AID ICX-153 or ICX-1153 ion chamber,
which is the default chamber type shipped with standard
AEC type generators, requires that detector "A" = 2, "B"
= 1, and "C" = 3. The factory default orientation of the
ion chamber mounting in the bucky is with the front side
toward the tube. However, it may be necessary to mount
the chamber with the back side forward (e.g., for left
side loading wall stands). In this case, in the Ion Cham-
ber Settings screen, simply switch assignment of cham-

Quantum ODYSSEY HF Series Specifications

General

Brand	Quantum
Model	ODYSSEY HF Series
Category	Medical Equipment
Language	English