FONA X70 Operating Instructions

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FONA X70

Operating Instructions

English

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Table of Contents

FONA X70 Operating Instructions

English Edition

Version 110720 July 2011

Code 69 500 70110

Manufactured by FONA S.r.l.

Via Idiomi 1/8-33 - 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 Tube Housing Assemblies .................... 4

2.3 Beam Limiting Device .......................... 4

2.4 AutoSet 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 Use of the AutoSet Timer .................... 6

3.4 Operation ........................................... 7

3.5 Operational Remarks ........................... 7

FONA X70 – Operating Instructions

3.6 Moving the mobile unit ........................ 7

3.7 The Timing Table ................................ 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 Components ................ 10

Appendix B Icons .............................................. 11

Appendix C Exposure Table ................................ 12

Appendix D Alarm Conditions ............................. 13

Appendix E Identification Labels ......................... 14

Appendix F Cooling Curves ................................. 14

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FONA X70 – Operating Instructions

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 X70 X-ray equipment is design to fulfill the needs for 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 Manuals 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 X70 is a Class I, type B equipment

• FDA: FONA X70 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 accident 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, 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 vapors.

• Radiation.

 Use the system only with round 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.  Make sure that the equipment is not left unattended.

• Environmental.

 The equipment contains components which must be disposed-of following existing law.

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Page 4

2. TECHNICAL DATA

Line Voltage

115 V (

from 9

9 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

)

Line Voltage Range

108 -

132 V for

type

93 202 01300

207 -

253 V for

type

93 202 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

Line resistance

≤ 0.4 Ohm at 115 V,

≤

0.8 Ohm

at 230 V

Nominal

Line Voltage

120 V for type 93 2

01300

230 V for type 93 2

01700

Nominal Line Current

6 A at 120 V for type 93 2

02 01300

4 A at 230 V for type 93 202

01700

Line Voltage Range

108 -

132 V for 93 202 01300,

207 –

253 V for 93 202 01700

Anode Voltage (peak

70 kVp ± 8% at nominal line voltage

74 kVp ± 8% at nominal line voltage+ 10%

Anode Current

7.0 mA ± 15% at nominal line voltage

8.3 mA ± 15% at nominal line voltage + 10%

Nominal Power

0.4 kW at

70 kVp, 7 mA, 0.1

X-ray Insert

3 electrodes, grid control action models: OCX/70

G, RF

G070

Anode

Tungsten

, angle 19° to the tube axis

Focal S

pot 0.8 (EN 60336:1995

04)

Inherent Filtration

> 2.5 mm Al

(EN 60522: 1999)

Duty Cycle

1/30

Radiation Lea

age < 0.1 mGy/h a 1 m (< 11.5 mR/h a 1 m)

Beam Limiting

Focus skin distance 21 cm (8.27”)

Circular

radiation field

6 cm (2.35”) diameter /Rectangular 3.2x4.2 cm (1.26”x1.65”)

Supply Voltage

110-120

for type 93 3

0 60200

220-240

for type 93 3

0 60100

Exposure factor

Exposure time in s, 18 steps from 0.06 s to 3.2 s (R10 scale)

. Time in seconds is

conv

erted to number of mains pulses (20 ms at 50 Hz, 16.6 ms at 60 Hz).

0.06 0.12 0.25 0.50 1.00 2.00

0.08 0.16 0.32 0.64 1.25 2.50

0.10 0.20 0.40 0.80 1.60 3.20

Precision

± 0.02 s or 5% (whichever the greater)

Exposure factor

s Automatic setting throug

h tooth type selection and patient

build

, for use with trad

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

Wall Adaptor

12 cm /4.7” width, 24 cm /9.4” height, 9 cm /3.5” depth

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

Timer

1.7 kg / 3.7 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

Scissor Arm

11.7 kg / 25.8 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

Wall Adaptor

1.3 kg / 2.9 lb

Mobile Stand

29.4 kg / 64.8 lb

2.1 System Supply

2.2 Tube Housing Assemblies

FONA X70 – Operating Instructions

tube potential)

(tube current)

66 kVp ± 8% at nominal line voltage – 10%

5.3 mA ± 15% at nominal line voltage – 10%

2.3 Beam Limiting Device

Device

2.4 AutoSet Timer

2.5 Mechanical Suspension System

Arm Length

2.6 Weights

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Page 5

FONA X70 – Operating Instructions

Device for emission of ionizing rad

Indication of system turned ON and

Manual decrease of controlled

Manual increase of controlled

2 3 4

6 7

10 11 12

13 14 15

3. OPERATING INSTRUCTION

3.1 The Control Panel

ation on request

ready

3 Irradiation

4 Alarm

5 Exposure time in s

technique factor

8 Patient build adult /large

9 Patient build child /small

10 Maxillary incisor

Maxillary canine or premolar

Maxillary molar

13 Mandibular incisor

Mandibular canine or premolar

Mandibular molar

16 Bite-wing premolar

17 Digital detector in use

18 Radiation exposure pushbutton

3.2 Beam Limiting Device

Systems are supplied with Beam Limiting Device (BLD) having Source Skin Distance (SSD) of 21 cm (8.27”), circular radiation field of 6 cm (2.35”) diameter or rectangular 5.3 cm (2.1”) diagonal.

The devices are suitable for either bisecting or paralleling radiographic techniques, once conveniently angled. The user is recommended to bring the rim of the collimator in touch with the film holder or with the face of

the patient to reduce possible blurring due to some movement during irradiation.

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Page 6

FONA X70 – Operating Instructions

FILM SPEED INDEX

0.32

0.40

0.50

0.64

0.80

1.00

1.25

1.60

2.00

E type

D type

D type: Kodak Ultraspeed, Agfa Dentus M2

- E type: Kodak Ektaspeed Plu

3.3 Use of the AutoSet Timer

Before using the timer make sure that the proper film speed indication and length of the beam limiting device have been properly set into the memory of the timer.

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 functionality can be enabled or disabled at time of installation with a dedicated switch (see the Service and Installation Manual).

When this functionality is enabled, the user is given the possibility to display the actual exposure time after compensation instead of the one requested.

To set the desired working parameters follow the instructions below.

• SET-UP MENU. Enter the set-up menu by switching on the unit while pressing at the same time, and for 2 s, the three

keys , , and . The film speed selection mode is entered.

 FILM 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 key to change the value.

Press the COMPUTER key to exit (E) input mode (back to normal operation) or the BITEWING

key to pass to next (N) selec-

tion.

 BEAM LIMITING DEVICE. The

number on the display either “20” or “30” represents the length of the BLD in cm. Press the PLUS

or MINUS key to change

the value. Press the COMPUTER

key to exit (E) input mode

(back to normal operation) or the

BITEWING key for next (N) selection.

 ACTUAL EXPOSURE TIME. The message on the display, either “on” or “OFF”, tells whether the ac-

tual corrected time or just the selected one will be displayed. Press the PLUS or MINUS keys

to change the value. Press the COMPUTER key to exit (E) input mode (back to normal opera-

tion) or the BITEWING key (E) to go back to first selection.

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FONA X70 – Operating Instructions

LINE

SWITCH ON/OFF

BELOW THE UNIT

EXPOSURE

PUSHBU

TON

YELLOW

LIGHT

Range of Selectable Times in s for the Au

toSet Timer

0.06 0.12 0.25 0.50 1.00 2.00

0.08 0.16 0.32 0.64 1.25 2.50

0.10 0.20 0.40 0.80 1.60 3.20

3.4 Operation

Turn on the line voltage supply with the switch below the timer.

1. Have the patient remove any provisional object 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 exposure time 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 MINUS 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 exposure 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 generated.

3.5 Operational Remarks

• The given range of selectable times is of 18 values from 60 ms to 3.2 s. Each step changes the radiation energy of a minimum level of blackening (density). Every 3 steps upward the energy is doubled, every 3 steps downward the energy is halved.

• When the correction of dose variation due to line voltage fluctuations is activated, the corrected exposure time is 1) reduced if the line voltage is over the nominal level or 2) increased if it is below.

• During the exposure the yellow lights 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 radiation in case of failure of the main timer.

• Alarm conditions are signaled by the red light and by 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 functionality 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 exposure 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.

3.6 Moving the mobile unit

The folding arm has to be closed in parking position every time the mobile unit is relocated.

110720 69 500 70110 7/16

Page 8

FONA X70 – Operating Instructions

Pulses 50

Pulses 60

Pulses @50

Pulses @60

0,06 0.42 3 4

0,50 3.50 25 30

0,08 0.56 4 5

0,64 4.40 32 38

0,10 0.70 5 6

0,80 5.60 40 48

0,12 0.88 6 7

1,00 7.00 50 60

0,16 1.12 8 10

1,25 8.75 62 75

0,20 1.40 10 12

1,60 11.2 80 96

0,25 1.75 12 15

2,00 14.0 100 120

0,32 2.24 16 19

2,50 17.5 125 150

0,40 2.80 20 24

3,20 22.4 160 192

Emission Test

Compliance

Electromagnetic environment

This

FONA X70

uses RF energy only for its internal function.

inte

rference in nearby ele

tronic equipment.

Class B

Harmonic e

missions

EN 61000

-3-2

Complies

Class A

Voltage fluctu

tions/

EN 61000

-3-3

3.7 The Timing Table

Here below the timing indications in s and in line pulses at 50 and 60 Hz as well as mAs at 7 mA.

s mAs

4. CARE AND MAINTENANCE

4.1 Cleaning

Always disconnect the line voltage supply before cleaning the unit. Use a mild soap to remove finger or other dirty marks paying attention not to have liquids enter into the equipment. Plastic covers 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 X70 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 recycling 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 directives 2002/96/EC and 2003/108/EC.

6. ELECTROMAGNETIC COMPATIBILITY

6.1 Electromagnetic Emissions

The FONA X70 is suitable for use in the specified electromagnetic environment. The purchaser or user of the FONA X70 should assure that it is used in an electromagnetic environment as described below.

Radiated and conducted RF emissions CISPR 11

flicker emissions

Group 1

Complies

Therefore, the RF emission is very low and not likely to cause any

This FONA X70 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 purposes

8/16 69 500 70110 110720

Page 9

FONA X70 – Operating Instructions

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

Non-life-supporting equi

ment:

10Veff inside ISM band

Electrical fast tra

sient/burst

EN 6 1000

-4-4

2 kV for power supply lines

1 kV for i

put/output lines > 3m

EN 6060 1

-1 -2

Test level

1 kV differential mode

2 kV co

mon mode

EN 60601

-1 -

Test level

Voltage dips, short interru

EN 6 1000

-4-11

0% U

for 0.5 cycles

0% U

for 5s

Power frequency (50/60 Hz)

magnetic field EN 61000

-4-8

EN 60601

-1-

Test level

Inimunity

Test

EN 60601

-1-2

Test level

Compliance

level

Electromagnetic Enviro

ment

3V/m:

2.5GHz

Portable and mobile RF Communications equipment

should be

d = 2.3 x

√P

800MHz to2.5GHz

of the

transmi

ter

(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 di

stance

lection from structures, objects and people

6.2 Electromagnetic Immunity

The FONA X70 is suitable for use in the specified electromagnetic environment. The customer or user of the FONA X70 should assure that it is used in an electromagnetic environment as described below.

Residential/Hospital

Radiated RF EN 61000-4-3

Conducted RF EN 61000-4-6

Surge EN 61000^1-5

tions and voltage variations on power supply input lines

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,

40 % UT for 5 cycles 70 % UT for 25 cycles

3 A/m

EN 60601-1 -2 Test level

EN 60601 -1-2 Test level

Residential/Hospital

6.3 Non-Life Supporting Equipment

The FONA X70 is intended for use in the electromagnetic environment specified below. The customer or the user of the FONA X70 should assure that it is used in such an environment

Radiated RF EN 61000-4-3

Conducted RF EN 61000-4-6

80MHz to

3V : 150kHz to 80MHz

3 V/m

used no closer to any part of the FONA X70, 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

Where P is the maximum output rating of the transmitter in watts (W) according to the transmitter manufacturer 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 X70 is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or the user of FONA X70 can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF Communications equipment (transmitter) and FONA X70 as recommended below, according to the maximum output power of the Communications equipment.

Rated maximum output power

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 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 ref-

110720 69 500 70110 9/16

watts (W) according to the transmitter manufacturer.

Page 10

FONA X70 – Operating Instructions

FONA X70

Systems at 230 V

FONA X70

Systems at 120 V

Code

Description

Code

Description

ID Description

Code

ID Description

Code

93 20

5 01300

93 20

5 01700

93 30

5 60200

93 30

5 60100

Appendix A

Systems and Components

97 576 62320 Wall Syst. Arm S 30 cm 230V 97 526 62320 Wall Syst. Arm S 30 cm 120V 97 576 62620 Wall Syst. Arm M 60 cm 230V 97 526 62620 Wall Syst. Arm M 60 cm 120V 97 576 62820 Wall Syst. Arm L 80 cm 230V 97 526 62820 Wall Syst. Arm L 80 cm 120V 97 576 62120 Wall Syst. Arm L 100 cm 230V 97 526 62120 Wall Syst. Arm L 100 cm 120V 97 576 67820 Mobile System 230V 97 526 67830 Mobile System 120V UL/CSA

A Wall adaptor 93 105 11000

C Scissor arm 93 150 12010 I 3x4 cm X-ray field BLD 91 300 00040

E Wall plate 16” 86 100 11500 L Kit remote hand-switch 93 300 02000

10/16 69 500 70110 110720

X-ray head 7 mA 120 V Support arm S 30 cm 93 150 17100 X-ray head 7 mA 230 V Support arm M 60 cm 93 150 17200 Support arm L 80 cm 93 150 17300 AutoSet Timer 220-240 V Support arm L 100 cm 93 150 17400 H 6 cm circular field BLD 91 300 00020

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

AutoSet Timer 110-120 V

Page 11

FONA X70 – Operating Instructions

Appendix B

Icons

IEC Type B Equipment

X-ray On Irradiation

Examine Annexed Documentation

Increase Exposure Time (one step)

Decrease Exposure Time (one step)

Child – Small Patient

Adult – Large patient

Upper Incisor

Upper Canine/Premolar

Compliance to European Community Requirements

Compliance to Canadian and US Standards

Line voltage supply On - System Ready

Off (Disconnected from Line voltage Supply)

On (Connected to Line voltage Supply)

Alternate Current

Fuse

Protective Earth

Neutral Point (for equipment permanent connected to line)

Upper Molar

Lower Incisor

Lower Canine/Premolar

Lower Molar

Bite Wing - Interproximal

Digital Receptor

Radiography Push Button

Ionizing Radiation

Live Point (for equipment permanent connected to line)

Inherent Filtration

Focal Spot

Fragile, Handle With Care

Fear of Humidity

Up Do Not Overturn

Stacking Limit

Separate Collection, Do Not Dispose

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Page 12

FONA X70 – Operating Instructions

3,20

2,50

2,00

2,60

1,25

1,00

0,80

0,64

0,50

0,40

0,32

2,50

2,00

2,60

1,25

1,00

0,80

0,64

0,50

0,40

0,32

0,25

2,00

2,60

1,25

1,00

0,80

0,64

0,50

0,40

0,32

0,25

0,20

Upper

Molar

1,60

1,25

1,00

0,80

0,64

0,50

0,40

0,32

0,25

0,20

0,16

Upper

/Canine

Lower

Molar

1,25

1,00

0,80

0,64

0,50

0,40

0,32

0,25

0,20

0,16

0,12

Lower

/Canine

1,00

0,80

0,64

0,50

0,40

0,32

0,25

0,20

0,16

0,12

0,10

Lower

Incisor

0,80

0,64

0,50

0,40

0,32

0,25

0,20

0,16

0,12

0,10

0,08

0,64

0,50

0,40

0,32

0,25

0,20

0,16

0,12

0,10

0,08

0,06

Appendix C

Exposure Table

FONA X70 - 70 kVp, 7 mA - Exposure Times in s

Small Pa-

tient

21cm

Focus-Film Distance

D Film

E Film

Digital

Large

Patient

D Film

E Film

Digital

Premolar

Bite Wing

Premolar

31 cm

Focus-Film Distance

D Film

E Film

Digital

Upper

Incisor

Small

Patient

Large Pa-

tient

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Page 13

FONA X70 – Operating Instructions

X-ray requested

period

Green lamp

ing

By acknowledgement

system cooled down

Green lamp (System

(Alarm) flashing

Automatically when

range

Green lamp (System

(Alarm) flashing

Automatically when

range

System Ready (green)

lamp flashing

Exposure push bu

power on

Exposure i

By acknowledgement

Exposure stopped

mer

Appendix D

Alarm Conditions

AutoSet Timer Alarm Conditions

Code Fault /Error Signal Action Reset

A 01

A 02

A 03

A 06

A 07

A 08

A 99

A 10

during cool-down

Line voltage below lower limit

Line voltage above upper limit

Line Frequency Detection Failure

ton pressed at

Exposure stopped by the operator

by the back-up ti-

Back-up relay failure

(System Ready) flash-

Ready) and red lamp

lamp and Alarm (red)

Red lamp (Alarm) flashing

Red lamp (Alarm) switched on

System inhibited

hibited

System inhibited

on the panel or when

line voltage back in

By switching system off and on again

By acknowledgement on the panel

on the panel or after 1

By switching system off and on again

A 11

A12

Power switching device failure

Line dips during exposure

Red lamp (Alarm) switched on

System inhibited

Exposure inhibited

By switching system off and on again

By acknowledgement on the panel

110720 69 500 70110 13/16

Page 14

FONA X70 – Operating Instructions

Appendix E

Identification Labels

14/16 69 500 70110 110720

Page 15

FONA X70 – Operating Instructions

COOLING CURVE OF

X-RAY INSERT

ime

(min)

ime

(min)

Cooling Curves

0 0,5 1 1,5 2 2,5 3 3,5 4 4,5 5

COOLING CURVE OF TUBE HOUSING ASSEMBLY

150

125

100

0 20 40 60 80 100 120 140 160 180 200

Appendix F

110720 69 500 70110 15/16

Page 16

FONA Dental s.r.o.

FONA S.r.l.

*69

50070

110*

FONA X70 Operating Instructions – English Edition 110720

Stefanikova 7 SK-811 06 Bratislava, Slovakia

www.fonadental.com

Via Idiomi 1/8-33 - 20090 Assago (MI) Italy