FONA XPan 3D Operating Instructions
69 683 70110
- 150831
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P1 DA 123 mGycm2
67 6.3
7.4 Releasing the exposure
ATTENTION. Operator: observe the radiation protection
guidelines (see chapter 1, Warning and Safety Notes).
Before releasing the exposure always check display for proper
exposure data for the patient.
Move arm to START position using the RETURN Arm Movement key or
the EXPOSURE key on the hand switch for short time.
READY
GREEN LIGHT ON
RETURN Arm Movement to bring the arm from PATIENT ENTRY
position to START position, ready to start the exposure.
When the unit reaches START position the green light of the READY
indicator on the control panel is turned ON.
ATTENTION. Should you need to reposition the patient, the arm
has to be moved from the START position back to the PATIENT
ENTRY position keeping pressed the BACK key: see Resetting Carriage
in PATIENT ENTRY position, in the following.
Start the acquisition program
on computer
Run the acquisition program on PC to receive the radiographic image
being created, as described in section 5 Application Software on page
11.
Go to the area designated for the operator behind the patient, three
meters away from the column, or exit the room always keeping an
eye on the patient, ready to immediately interrupt radiation if
necessary.
Expose the patient
The exposure is released by keeping the exposure key pressed till end
of movement.
The rotation movement runs automatically in accordance with the
exposure program selected.
During radiation
A yellow light is on control panel and on the exposure switch emitted
during irradiation and an acoustic signal is activated.
Exposure interruption
ATTENTION. For safety reasons the operator can terminate the
exposure any time by releasing the exposure switch. Premature
termination is signaled by an error message (see details in the
following).
After the exposure has been completed, acknowledge image
acquisition on computer.
After the exposure
At the end of the exposure the unit comes to a complete stop. Move
the arm to PATIENT EXIT position using the RETURN Arm Movement
key or the EXPOSURE key on the hand switch for short time.
Patient out
Open the temple support (optional) and have the patient stepping
out.
Arm back to patient entry position
Move the arm to PATIENT ENTRY position for next exposure using the
RETURN Arm Movement key or the EXPOSURE key on the hand switch
for short time.
The value of the dose by area (DA) product in mGy cm
2
is indicated
on display after a panoramic exposure. Do acknowledge the Dose
Area value with RETURN or EXPOSURE key to proceed.
DA computations can be enabled or disabled via service function.
ERROR
MESSAGE
