Fona XDG User manual

FONA XDG
Operating Instructions
English

FONA XDG –Operating Instructions
2/16 69 550 70110 141001
Table of Contents
FONA XDG Operating Instructions
English Edition
Version 141001 October 2014
Code 69 550 70110
Manufactured by FONA S.r.l.
Via Galilei 11 - 20090 Assago (MI) Italy
Distributed by FONA Dental s.r.o.
Stefanikova 7 SK-811 06 Bratislava, Slovakia www.fonadental.com
1. INTRODUCTION.......................................3
1.1 Congratulations................................3
1.2 Purpose...........................................3
1.3 Equipment Classification ...................3
1.4 Obligations of the User .....................3
1.5 Warning ..........................................3
1.6 Safety Recommendations .................3
2. TECHNICAL DATA ....................................4
2.1 System Supply .................................4
2.2 X-ray Head Assemblies .....................4
2.3 Beam Limiting Device .......................4
2.4 Timer ..............................................4
2.5 Mechanical Suspension System .........4
2.6 Weights...........................................4
3. OPERATING INSTRUCTION.......................5
3.1 The Control Panel ............................5
3.2 Beam Limiting Device .......................5
3.3 User Functionality of TipSet Timer.....6
3.4 Operation ........................................7
3.5 Operational Remarks ........................7
3.6 The Timing Table ............................ 8
3.7 Moving the mobile unit .................... 8
4. CARE AND MAINTENANCE ....................... 8
4.1 Cleaning ......................................... 8
4.2 Disinfecting ..................................... 8
4.3 Maintenance ................................... 8
5. DISPOSING OF OBSOLETE EQUIPMENT.... 8
6. ELECTROMAGNETIC COMPATIBILITY ....... 8
6.1 Electromagnetic Emissions ............... 8
6.2 Electromagnetic Immunity ............... 9
6.3 Non-Life Supporting Equipment ........ 9
6.4 Separation Distance for non-life
supporting equipment.................................. 9
Appendix A Systems and Spare Parts.............. 10
Appendix B Icons .......................................... 11
Appendix C Exposure Table............................ 12
Appendix D Alarm Conditions ......................... 13
Appendix E Identification Labels ..................... 14
Appendix F Cooling Curves............................. 15

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1. INTRODUCTION
1.1 Congratulations
Congratulations! You have purchased a state of the art equipment which will assist in your profession day
after day performing consistently for many years. The unit is manufactured under a Quality Control System
which grants full compliance to specifications.
1.2 Purpose
The FONA XDG X-ray equipment is designed to fulfil the needs for high resolution intra-oral radiography in
the general dental practice. The systems can be configured for wall or mobile solutions.
The Operating Instructions and the Service and Installation Manual supplied with the system are integral
part of the product. The original language of the Operating Instructions is English.
1.3 Equipment Classification
IEC: FONA XDG is a Class I, type B equipment
FDA: FONA XDG is a Class II medical device equipment (21 CFR 872-1800).
1.4 Obligations of the User
It is the responsibility of the User:
To follow the instructions and recommendations contained in this Operating Instructions.
To maintain the equipment in compliance by following the manufacturer’s recommended maintenance
schedule. Failure of the user to properly maintain the equipment may relieve the Manufacturer, or his
Agent, from responsibility for any injury, damage, or non-compliance which may result.
To report promptly to the Health Authority in charge and to the Manufacturer or to its Agent any acci-
dent involving this medical device or any alteration in features and/or performances which could cause
death, injuries or health hazard to patient and/or operator.
Important information to be gathered and to be included in the report to the Manufacturer are the type
and serial numbers of the involved items which can be retrieved from the technical labels.
1.5 Warning
Use the system only after proper assembly and installation as per manufacturer’s instructions.
X-ray equipment produce ionizing radiation that may be harmful if not properly controlled. It is recommend-
ed that the equipment be operated by trained personnel only and in accordance with the existing laws.
Even if compliant to specifications of electromagnetic compatibility, it is recommended not to use the equip-
ment in presence of external electromagnetic fields, such as those generated by cellular phones, which
might interfere with the electronic circuits of the system.
1.6 Safety Recommendations
Electrical.
Trained and qualified service technicians only are authorized to remove covers and have access to
power circuits.
Power supply lines must comply with safety legislation and have ground terminals for protective
earth connection.
Switch the equipment OFF and disconnect it from line voltage supply (with the room switch) before
cleaning or disinfecting the unit.
Mechanical.
Check regularly (at least once a year) the status of supports and arms of the suspension system, in
case having necessary maintenance performed by a service technician.
Explosion.
The equipment cannot be used in presence of flammable gases or vapours.
Radiation.
Use the system only with circular or rectangular collimator (BLD, beam limiting device) mounted.
The statutory radiation protection equipment must be used.
Patient safety during operation has to be ensured by the operator.
The equipment has not to be left unattended.
Environmental.
The equipment contains components which must be disposed-of following existing law.

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2. TECHNICAL DATA
2.1 System Supply
Line Voltage
115 V (from 99 V to 132 V in sub-ranges depending on THA mounted)
230 V (from 198 V to 264 V in sub-ranges depending on THA mounted)
China Line Voltage: 220 V
Line Power
400 W
Line Voltage Range
108 - 132 V for type 93 256 01300, 207 - 253 V for type 93 256 01700
Line Fuse
Slow Blow: 6.3 A at 115 V, 4 A at 230 V, second fuse for two phases or cord
Line Frequency
50/60 Hz 1 Hz; China Line Frequency: 50 Hz
Line Resistance
0.4 Ohm at 115 V, 0.8 Ohm at 230 V
Voltage regulation for maximum line current: 2.1% at 115 V, 1.4% V at 230 V
2.2 X-ray Head Assemblies
Nominal Line Voltage
120 V for type 93 256 01300, 230 V for type 93 256 01700
Nominal Line Current
6 A at 120 V for type 93 256 01300, 4 A at 230 V for type 93 256 01700
Anode Voltage
(peak tube potential)
70 kVp ± 8% at nominal line voltage
66 kVp ± 8% at nominal line voltage –10%
74 kVp ± 8% at nominal line voltage+ 10%
Anode Current
(tube current)
3.5 mA ± 10% at nominal line voltage
3.0 mA ± 10% at nominal line voltage –10%
4.0 mA ± 10% at nominal line voltage + 10%
Nominal Power
0.2 kW at 70 kVp, 3.5 mA, 0.1 s
X-ray Insert
CF4G070
Anode
Tungsten, angle 16° to the tube axis
Focal Spot
0.4 (EN 60336:1995-04)
Focal spot mark
Dot embossed on plastic covers of tube-head
Inherent Filtration
> 2.5 mm Al/70kVp (EN 60522: 1999)
Duty Cycle
1/15
Radiation Leakage
< 0.1 mGy/h a 1 m (< 11.5 mR/h a 1 m)
2.3 Beam Limiting Device
Beam Limiting
Device
Focus skin distance 21 cm (8.27”)
Circular radiation field 6 cm (2.35”) diameter /Rectangular 3.2x4.2 cm (1.26”x1.65”)
Maximum 10% eccentricity
2.4 TipSet Timer
Supply Voltage
110-120 for type 93 356 60200, 220-240 for type 93 356 60100
Exposure factor
Time-current in mAs: from 0.21 to 11.2 mAs
0.21
0.28
0.35
0.42
0.56
0.70
0.88
1.12
1.40
1.75
2.20
2.80
3.50
4.40
5.60
7.00
8.75
11.2
Precision
± 0.04 mAs o 10% (whichever the greater) supplied at nominal line voltage
Exposure factors
Automatic setting through tooth type selection and patient build, for use with tradi-
tional film or digital sensor, or manual setting with plus and minus keys.
Irradiation signal
Yellow light on hand-switch and on control panel plus acoustic buzzer
Hand-switch
Hand-switch with 3 m coiled cord, with remote mounting optional kit
Overall size
Width: 15 cm /6”, Height: 24 cm /9”½, Depth: 9 cm /3”½
2.5 Mechanical Suspension System
Wall Adaptor
12 cm /4.7” width, 24 cm /9.4”height, 9 cm /3.5”depth
Arm Length
Short (S): 30 cm /11.8”, Medium (M): 60 cm /23.6”,
Long (L): 80 cm /31.5”, Extra Long (XL) 100 cm /39,4”
Useful Reach
Arm S: 138 cm /54.3”, M: 168 cm /66.1”, L: 188 cm /74”, XL: 208 cm /81.9”
Mobile Stand
Size 78 x 92 cm (30” ¾ x 36” ¼), Height: 186 cm /73” ¼” with scissor arm
2.6 Weights
Timer
1.7 kg / 3.7 lb
Support Arm
Arm S: 2.8 kg /6.2 lb , M: 4.0 kg /8.8 lb,
L: 4.8 kg /10.6 lb,
XL: 5.4 kg /11,9 lb
X-ray Head
6.6 kg / 14.5 lb
Circular BLD
0.1 kg / 0.22 lb
Rectangular BLD
0.2 kg / 0.44 lb
Wall Adaptor
1.3 kg / 2.9 lb
Scissor Arm
11.7 kg / 25.8 lb
Mobile Stand
29.4 kg / 64.8 lb

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3. OPERATING INSTRUCTION
3.1 The Control Panel
1
Device for emission of ionizing radi-
ation on request
10
Maxillary incisor
2
Indication of system turned on and
ready
11
Maxillary canine or premolar
3
Irradiation
12
Maxillary molar
4
Alarm
13
Mandibular incisor
5
mAs display, the controlled
technique factor
14
Mandibular canine or premolar
6
Manual decrease of controlled tech-
nique factor
15
Mandibular molar
7
Manual increase of controlled tech-
nique factor
16
Bite-wing premolar
8
Patient build adult/large
17
Digital detector in use
9
Patient build child/small
18
Radiation exposure pushbutton
3.2 Beam Limiting Device
The devices are suitable for either bisecting or paralleling radiographic techniques, once conveniently angled.
Keep the rim of the collimator in touch with the film holder or with the face of the patient to reduce possible
blur due to movement during irradiation.
18
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17

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3.3 User Functionality of TipSet Timer
Before using the timer make sure that the exposure indexes for film and sensor have been set in memory.
EXPOSURE INDEX
0.32
0.4
0.5
0.63
0.8
1.0
1.25
1.6
2.0
2.5
3.2
4.0
CDR
SENSOR
XIOS
SENSOR
F
FILM
E
FILM
D
FILM
CDR Sensor by Shick Technologies Inc., XIOS Sensor by Sirona Dental Systems GmbH
Exposure index 1 corresponds to film type E:
2.20 mAs for Upper Molar on Large Patient at 21 cm (8”) distance.
0.70 mAs for Lower Incisor on Small Patient at 21 cm (8”) distance.
For films which require twice the dose of film type E, move up three steps and double the index to 2.
Typical films are:
Type D: Kodak Ultraspeed, Agfa Dentus M2
Type E: Kodak Ektaspeed Plus/Insight
Type F: Kodak Insight
Similarly for a digital sensor requiring half the dose of film E, move down three steps to value 0.5.
Typical sensors are:
CDR sensors of Schick Technologies feature exposure index 0.4.
XIOS sensors of Sirona Dental Systems feature exposure index 0.5.
For other brands of sensors refer to the own manufacturer for information about exposure sensitivity.
To set and store the desired working parameters follow the instructions below
SET UP MENU.
Enter the set-up menu by switching
on the unit while pressing all together
and for 2 s the three keys plus ,
minus , and
bitewing .
The film speed selection mode is en-
tered.
FILM SPEED. The number on the
display represents the index of
the speed of the film currently se-
lected (see table above). Press
plus or minus key to
change the value.
Press the computer key to
exit (E) input mode or
bitewing key for next (N) se-
lection.
DIGITAL SENSOR SPEED. The number on the display represents the index of the speed of the film
currently selected (see table above). Press the plus or minus keys to change the value.
Press the computer key to exit (E) input mode or bitewing key for next (N) selection.
CORRECTED TECHNIQUE FACTOR. The message “ON” or “OFF” tells whether the actual corrected
mAs value or just the selected one will be displayed. Press the or keys to change the value.
Press the computer key to exit (E) input mode or bitewing key for next (N) selection.

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LINE-SWITCH ON/OFF
BELOW THE UNIT
EXPOSURE
PUSHBUTTON
YELLOW
LIGHT
3.4 Operation
Turn on the line voltage supply with the switch
below the timer
1. Have the patient remove any provisional ob-
ject in the mouth which may affect image
quality.
Position the image receptor where needed
and orientate the tube-head accordingly.
Operate with the rim of the collimator in
touch with the film holder or with the face
of the patient
2. Select the desired time-current product (ex-
posure factor) with keys for patient build,
type of tooth and type of receptor (press
computer if required), or set the value
manually changing it with plus or minor
keys.
3. Take the exposure hand-switch and move to
a convenient position of at least 2 m far
from the patient.
4. Press the exposure pushbutton. The expo-
sure yellow light and the buzzer indicate X-
ray emission. Keep the exposure pushbutton
pressed until the yellow light and the buzzer
are switched OFF to indicate the end of the
exposure.
5. Hook back the exposure hand-switch and
process the image receptor exposed.
6. WARNING: If the exposure pushbutton is
released before the end of the requested time, the radiation emission is terminated and an alarm is gen-
erated.
Time-current normalized scale in mAs
0.21
0.28
0.35
0.42
0.56
0.70
0.88
1.12
1.40
1.75
2.20
2.80
3.50
4.40
5.60
7.00
8.75
11.2
3.5 Operational Remarks
The given range of exposures comprises 18 steps from 0.21 to 11.2 mAs.
Each step the time-current scale changes the radiation energy of a minimum level of blackening (densi-
ty). Every 3 steps upward the energy is doubled, every 3 steps downward the energy is halved.
When the functionality to correct the dose variation due to line voltage fluctuations is activated, the cor-
rected mAs value is 1) reduced when the line voltage is over the nominal level or 2) increased when it is
below.
During the exposure the yellow light of X-ray On on the control panel and on the hand-switch are
turned ON and the internal buzzer sounds to indicate radiation emission.
An independent back-up device (back-up timer) is provided as additional safety feature to cut-off radia-
tion in case of failure of the main timer.
Alarm conditions are signaled by the red light and a display message on the control panel.
The timer implements the dead-man functionality with which radiation emission is stopped if the opera-
tor terminates the exposure by releasing the push-button before the requested exposure time has
elapsed. An alarm message is generated.
The timer offers the possibility to correct the exposure time to control radiation dose changes due to
sudden and strong fluctuations of the line voltage supply for a consistent film blackening. This function-
ality can be enabled or disabled at time of installation with an internal switch.
After each exposure the timer takes into account the cool-down period and prevents an immediate ex-
posure which would exceed the energy allowed by the duty cycle, with a minimum waiting time of 3 s.
During waiting time for cool-down the system is inhibited, and the digits on the display keep flashing,
until the energy of the requested exposure fits the heat capacity of the tube head. Once the waiting time
has expired, the display quit flashing and the system becomes ready.

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3.6 Moving the mobile unit
The folding arm has to be closed in parking position every time the mobile unit is relocated.
3.7 The Timing Table
Here below the timing indications in s (R10 scale) and in line pulses at 50 and 60 Hz.
mAs
s
Pulses 50 Hz
Pulses 60 Hz
mAs
s
Pulses @50 Hz
Pulses @60 Hz
0.21
0,06
3
4
1.75
0,50
25
30
0.28
0,08
4
5
2.20
0,63
31
38
0.35
0,10
5
6
2.80
0,80
40
48
0.42
0,12
6
7
3.50
1,00
50
60
0.56
0,16
8
10
4.40
1,25
62
75
0.70
0,20
10
12
5.60
1,60
80
96
0.88
0,25
12
15
7.00
2,00
100
120
1.12
0,32
16
19
8.75
2,50
125
150
1.40
0,40
20
24
11.2
3,20
160
192
4. CARE AND MAINTENANCE
4.1 Cleaning
Always disconnect the line voltage supply before cleaning the unit. Use a mild soap to remove fin-
ger or other dirty marks paying attention not to have liquids enter into the equipment. Plastic co-
vers can be wiped with a soft cloth and light detergent. Avoid the use solvents or corrosive detergents.
4.2 Disinfecting
Parts in touch with the patient must be cleaned with a detergent (such as 2% solution of ammonia) and
then disinfected making sure not to use solvents or corrosive disinfectants. which can cause cracks on the
plastic covers.
4.3 Maintenance
Maintenance for the FONA XDG systems to be done regularly by a service technician at least once
every 24 months, in addition to regular checks performed by the operator every year.
5. DISPOSING OF OBSOLETE EQUIPMENT
A radiological system is made of different materials which include many kinds of metals (iron,
aluminum, lead, copper and others), plastic materials, electronic components and dielectric oil in
the tank of the X-ray tube. The "crossed-out wheeled bin" symbol on the product indicates that
the product at the end of its useful life must not be disposed of as unsorted municipal waste but
has to be collected separately and delivered to specialized operators for recycling or disposal of
waste of electrical and electronic equipment (WEEE), in compliance with existing laws.
By doing in this way possible negative effects on human health and environment are prevented, and recy-
cling of the component materials is promoted. Penalties are applicable to illicit disposal.
FONA and its local Dealers commit to fulfill obligations related to the management of WEEE of professional
nature, according to the provisions of the European directive 2012/19/EC.
6. ELECTROMAGNETIC COMPATIBILITY
6.1 Electromagnetic Emissions
The FONA XDG is suitable for use in the specified electromagnetic environment. The purchaser or user of the
FONA XDG should assure that it is used in an electromagnetic environment as described below.
Emission Test
Compliance
Electromagnetic environment
Radiated and conduct-
ed RF emissions
CISPR 11
Group 1
This FONA XDG uses RF energy only for its internal function.
Therefore, the RF emission is very low and not likely to cause any
interference in nearby electronic equipment.
Class B
This FONA XDG is suitable for use in domestic establishments and
in establishments directly connected to the low voltage power
supply network which supplies buildings used for domestic purpos-
es
Harmonic emissions
EN 61000-3-2
Complies
Class A
Voltage fluctuations/
flicker emissions
EN 61000-3-3
Complies

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6.2 Electromagnetic Immunity
The FONA XDG is suitable for use in the specified electromagnetic environment. The customer or user of the
FONA XDG should assure that it is used in an electromagnetic environment as described below.
Immunity Test
EN 60601-1-2
Test level
Compliance
level
Electromagnetic
Environment
Electrostatic discharge (ESD)
EN 6 1000-4-2
6 kV contact
8 kV air
EN 60601-1-2
Test level
Residential/Hospital
Radiated RF
EN 61000-4-3
Conducted RF
EN 61000-4-6
Non-life-supporting equipment:
3 V/m 80MHz to 2.5GHz.
Life-supporting equipment:
10 V/m 80 MHz to 2.5 GHz
Non-life-supporting equipment:
3Veff 150kHz to 80MHz
Life-supporting equipment:
3Veff outside ISM band,
10Veff inside ISM band
EN 60601-1 -2
Test level
Residential/Hospital
Electrical fast transient/burst
EN 6 1000-4-4
2 kV for power supply lines
1 kV for input/output lines > 3m
EN 6060 1-1 -2
Test level
Residential/Hospital
Surge EN 61000^1-5
1 kV differential mode
2 kV common mode
EN 60601-1 -2
Test level
Residential/Hospital
Voltage dips, short interrup-
tions and voltage variations
on power supply input lines
EN 6 1000-4-11
0% UTfor 0.5 cycles
40 % UTfor 5 cycles
70 % UTfor 25 cycles
0% UT for 5s
EN 60601 -1-2
Test level
Residential/Hospital
Power frequency (50/60 Hz)
magnetic field EN 61000-4-8
3 A/m
EN 60601-1-2
Test level
Residential/Hospital
6.3 Non-Life Supporting Equipment
The FONA XDG is intended for use in the electromagnetic environment specified below. The customer or the
user of the FONA XDG should assure that it is used in such an environment
Inimunity
Test
EN 60601-1-2
Test level
Compliance
level
Electromagnetic Environment
Radiated RF
EN 61000-4-3
3V/m:
80MHz to
2.5GHz
3 V/m
Portable and mobile RF Communications equipment should be
used no closer to any part of the FONA XDG, including cables,
than the recommended separation distance calculated from
the equation applicable to the frequency of the transmitter.
Recommended separation distance
d = 1.2 x √P 80 MHz to 800MHz
d = 2.3 x √P 800MHz to2.5GHz
Conducted RF
EN 61000-4-6
3 V : 150kHz
to 80MHz
3V
Where P is the maximum output rating of the transmitter in watts (W) according to the transmitter manufac-
turer and d is the recommended separation distance in meters (m). Field strengths for fixed RF transmitter,
as determined by an electromagnetic site survey, should be less than the compliance level in each
frequency range. Interference may occur close to equipment marked with the symbol at side.
6.4 Separation Distance for non-life supporting equipment
FONA XDG is intended for use in an electromagnetic environment in which radiated RF disturbances are con-
trolled. The customer or the user of FONA XDG can help prevent electromagnetic interference by maintaining
a minimum distance between portable and mobile RF Communications equipment (transmitter) and FONA XDG
as recommended below, according to the maximum output power of the Communications equipment.
Rated maximum output power
of the transmitter (W)
Separation distance according to frequency of transmitter (m)
150KHz to 80MHz
d = 1.2 x √P
80MHz to 800MHz
d = 1.2 x √P
800MHz to2.5GHz
d = 2.3 x √P
0.01
0.12
0.12
0.23
0.1
0.38
0.38
0.73
1
1.2
1.2
2.3
10
3.8
3.8
7.3
100
12
12
23
For transmitters rated at the maximum output power not listed above, the recommended separation distance d in
meters (m) can be estimated the equation applicable to the frequency of the transmitter, where P is the maximum
output power rating of the transmitter in watts (W) according to the transmitter manufacturer.
Note:
(1) at 80MHz and 800MHz, the separation distance for the higher frequency range applies
(2) These guidelines may not apply in all situations, Electromagnetic propagation is affected by absorption and re-
flection from structures, objects and people

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Appendix A
Systems and Components
FONA XDG Systems @ 230 V
FONA XDG Systems @ 120 V
Code
Description
Code
Description
97 586 62320
Wall Syst. Arm S 30 cm 230V
97 546 62320
Wall Syst. Arm S 30 cm 120V
97 586 62620
Wall Syst. Arm M 60 cm 230V
97 546 62620
Wall Syst. Arm M 60 cm 120V
97 586 62820
Wall Syst. Arm L 80 cm 230V
97 546 62820
Wall Syst. Arm L 80 cm 120V
97 586 62120
Wall Syst. Arm L 100 cm 230V
97 546 62120
Wall Syst. Arm L 100 cm 120V
97 586 67820
Mobile System 230V
97 546 67830
Mobile System 120V UL/CSA
ID
Description
Code
ID
Description
Code
A
Wall adaptor
93 105 11000
F
X-ray head XDG 120 V
93 256 01300
B
Support arm S 30 cm
93 150 17100
X-ray head XDG 230 V
93 256 01700
Support arm M 60 cm
93 150 17200
G
TipSet Timer 110-120 V
93 356 60200
Support arm L 80 cm
93 150 17300
TipSet Timer 220-240 V
93 356 60100
Support arm L 100 cm
93 150 17400
H
6 cm circular field BLD Grey
91 360 00020
C
Scissor arm
93 150 12010
I
3x4 cm X-ray field BLD
91 300 00040
D
Mobile stand
93 150 20080
J
Coiled cable
76 190 25580
Mobile stand UL/CSA
93 150 20090
K
Hand-switch W/O cable
76 190 25590
E
Wall plate 16”
86 100 11500
L
Kit remote hand-switch
93 300 02000
C
D
F
G
J
B
A
E
C
F
L
G
I
H
K

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Appendix B
Icons
IEC Type B
Equipment
Compliance to European Community
Requirements
X-ray On
Irradiation
Compliance to Canadian and US
Standards
Examine Annexed Documentation
Line voltage supply On - System
Ready
Increase Exposure Time (one step)
Off (Disconnected from Line voltage
Supply)
Decrease Exposure Time (one step)
On (Connected to Line voltage Sup-
ply)
Child –Small Patient
~
Alternate Current
Adult –Large patient
Fuse
Upper Incisor
Protective Earth
Upper Canine/Premolar
N
Neutral Point (for equipment per-
manent connected to line)
Upper Molar
L
Live Point (for equipment perma-
nent connected to line)
Lower Incisor
Inherent Filtration
Lower Canine/Premolar

Focal Spot
Lower Molar
Fragile,
Handle With Care
Bite Wing - Interproximal
Fear of Humidity
Digital Receptor
Up
Do Not Overturn
Radiography Push Button
Stacking Limit
Ionizing Radiation
Separate Collection,
Do Not Dispose

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Appendix C
Exposure Table
Large
Patient
Upper
Incisor
Upper
Canine/
Premolar
Upper
Molar
Small
Patient
Lower
Incisor
Lower
Canine/
Premolar
Lower
Molar or
Bitewing
0.21
0.28
0.35
0.42
0.32
0.28
0.35
0.42
0.56
0.40
CDR
SENSOR
0.32 
0.35
0.42
0.56
0.70
0.50
XIOS
SENSOR
CDR
SENSOR
0.40 
0.42
0.56
0.70
0.88
0.63
XIOS
SENSOR
0.50 
0.56
0.70
0.88
1.12
0.80
0.63 
0.70
0.88
1.12
1.40
1.00
E
FILM
0.80 
0.88
1.12
1.40
1.75
1.25
E
FILM
1.00 
1.12
1.40
1.75
2.20
1.60
1.25 
1.40
1.75
2.20
2.80
2.00
D
FILM
1.60 
1.75
2.20
2.80
3.50
2.50
D
FILM
2.00 
2.20
2.80
3.50
4.40
3.20
2.50 
2.80
3.50
4.40
5.60
4.00
3.20 
3.50
4.40
5.60
7.00
EXPOSURE
INDEX
4.00 
4.40
5.60
7.00
8.75
EXPOSURE
INDEX
5.60
7.00
8.75
11.20
3.50
4.40
5.60
7.00
4.40
5.60
7.00
8.75
5.60
7.00
8.75
11.20
FONA XDG Exposure Factors in mAs
CDR Sensor: Schick Technologies. Inc. Long Island City, NY, USA
XIOS Sensor: Sirona Dental Systems GmbH, Bensheim, Germany
Film D: Kodak Ultraspeed, Agfa Dentus M2 –Film E: Kodak Ektaspeed Plus - Film F: Kodak Insight

FONA XDG –Operating Instructions
141001 69 550 70110 13/16
Appendix D
Alarm Conditions
Timer Alarm Conditions
Code
Fault /Error
Signal
Reset
A 01
X-ray requested during
cool-down period
Green lamp
(System Ready) flashing
By acknowledgement
on the panel or when
system has cooled
down
A 02
Line voltage below lower
limit
Green lamp (System Ready)
and red lamp (Alarm) flash-
ing
Automatically when line
voltage is back in range
A 03
Line voltage above upper
limit
Green lamp (System Ready)
and red lamp (Alarm) flash-
ing
Automatically when line
voltage is back in range
A 06
Line Frequency Detection
Failure
System Ready (green) lamp
and Alarm (red) lamp flash-
ing
By switching system off
and on again
A 07
Exposure push button
pressed at power on
Red lamp
(Alarm) flashing
By acknowledgement
on the panel
A 08
Exposure stopped by the
operator
Red lamp
(Alarm) flashing
By acknowledgement
on the panel or after 1
m
A 09
Exposure stopped by the
back-up timer
Red lamp (Alarm)
switched on
By switching system off
and on again
A 10
Back-up relay failure
Red lamp (Alarm)
switched on
By switching system off
and on again
A 11
Power switching device
failure
Red lamp (Alarm)
switched on
By switching system off
and on again
A12
Line dips during expo-
sure
Red lamp (Alarm)
switched on
By acknowledgement
on the panel

FONA XDG –Operating Instructions
14/16 69 550 70110 141001
Appendix E
Identification Labels

FONA XDG –Operating Instructions
141001 69 550 70110 15/16
Appendix F
Cooling Curves
COOLING CURVE OF X-RAY INSERT
kJ
Time (min)
kJ
Time (min)
COOLING CURVE OF TUBE HOUSING ASSEMBLY

We reserve the right to make any alterations which may be required due to clinical improvements
FONA XDG Operating Instructions –English Edition 141001
FONA Dental s.r.o.
Stefanikova 7 SK-811 06
Bratislava, Slovakia
www.fonadental.com
FONA S.r.l.
Via Galilei 11 - 20090 Assago
(MI) Italy
*6955070110*