These instructions describe the maintenance procedures for the extraoral X-ray system. These instructions apply to all the revisions of said equipment.

In order to ensure the operational safety and functional reliability of the equipment installed, at least once a year an authorized service technician must perform a full inspection of the device.

When taking measurements that require a multimeter, always use a calibrated digital multimeter.

All the following tests will be carried out. Customer should be notified prior to replacing parts.

Step

"Check that all labels located

on the detector/detectors,

on the 3D Panel (if present)

at the base of the column,

on the X-ray tube housing,

are intact, well attached and legible."

Check there are no external damages to the equipment which could reduce protection against radiation.

Open the generator covers and check there are no oil leakage on the tube-head; replace it if there are signs of leakages.

Remove the dust accumulated inside the generator casing using a vacuum cleaner and reattach the covers.

Check the remote emission button cable is not broken or scratched

Power off the unit, disconnect it from the mains power supply and check the condition of the main power supply cable. Replace it

in case of damage. Connect it back making sure the safety ground is securely connected.

Check the power switch verifying that the ON/OFF button is working properly and the touch panel display illuminates when the

switch is in the on position.

Check the touch console functionality: functions must respond to interrogation.

Check proper functioning of X-ray exposure LED and exposure buzzer

Check proper functioning of X-ray centring laser traces

Check if detector fits easily in the guides Pan and CEPH sides – only for unit with Cephalometric arm and one removable detector.

Perform a motors movement test running the Dummy panoramic procedure, making sure the movement on the 3 axis X, Y,R (rotation

and translation simultaneously) is smoothly and without noise. See figure 1, next page.

In case a Cephalometric arm is installed, perform a motors movement test of the cephalometric detector using the Dummy Ceph

exam procedure, making sure the movement on the axe H (translation) is smoothly and without noise. See figure 1, next page.

Perform column movements, up and down on the Z axis and check proper functioning. See figure 2, next page.

Check the emergency button functionality. Emergency button is used to stop X-ray device operation, it's located under the patient

support arm in proximity of the telescopic column

Verify that exposure is immediately interrupted when X-rays button is released

Check the X-Ray Generator functionality performing a complete trial exam exposure. Select any panoramic exam and reset the unit.

Hold down the emission button throughout the entire exam procedure. Absence of error messages assures a proper generator

functionality.

Perform a complete 2D calibration of the unit : column calibration, PAN x-ray alignment, PAN detector calibration, PAN mechanical

alignment, Laser test. In case of Cephalometric option perform also the followings calibration steps: Ceph x-ray alignment, Ceph

detector calibration, Ceph mechanical alignment, Nasion calibration, Ear guide rings alignment.

At the end make a calibration backup

Performa complete 3D calibration of the unit: Beam Limiter Test, Daily Check, Cylindrical test phantom acquisition ("Mattarellum").

At the end make a 3D calibration backup

Perform an exam on the 3D Quality Phantom and evaluate the quality of the outcome volumetric study.

The undersigned confirms that he/she has checked the unit for the above criteria and that he/she has handed over the unit in fully functional condition.

All inspection and maintenance work performed by the system owner and/or service engineer must be recorded in this document and kept near the unit!!

OPERATOR'S MANUAL

Description

Reference in User Manual

User Manual, section Identification label position

User Manual, section Description of operations

Setting Tube head assembly replacement

User Manual, section X-ray emission remote control

Technical manual, section Electrical connections on the PFC board

User Manual, section Starting the system

User Manual, Touch screen display

User Manual, X-ray emission remote control

User Manual, section Laser traces

User Manual, section Sensor positioning

To execute a dummy run, exam simulation without emitting radiation,

select any panoramic exam and reset the unit. Once the reset position is

reached, hold down button "Reset" throughout the entire exam

procedure, otherwise movement will stop.

To execute a dummy run, exam simulation without emitting radiation,

select any cephalometric exam and reset the unit. Once the reset

position is reached, hold down button "Reset" throughout the entire

exam procedure, otherwise movement will stop.

User Manual, section Control Panel (console onboard the machine)

User Manual, section Emergency button

User Manual, section X-ray emission remote control

User Manual, section Performing a 2-D X-Ray examination

Technical manual, section 2D Calibration

Technical manual, section Calibration backup

Technical manual, section 3D Calibration

Technical manual, section 3D Calibration backup

Acquisition Operations with Annex

Operator Name

Signature

Answer questions with yes (√) or no (−)

Inspection DATE

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