ENGLISH
Focus
Service Manual
51714-IMG rev. 2
Copyright
Code: 51714-IMG rev 2 Date: 28 May 2012 Document code: 51714-IMG1TPH-1 rev 2
Copyright © 05/2012 by PaloDEx Group Oy.
All rights reserved.
FOCUS® is a registered trademark of Instrumentarium Dental.
Windows® is trademark of Microsoft Corporation in the United
States of America and other countries.
Documentation, trademark and the software are copyrighted with all rights reserved. Under the copyright laws the documentation may not be copied, photocopied, reproduced, translated, or reduced to any electronic medium or machine readable form in whole or part, without the prior written permission of Instrumentarium Dental.
The original language of this manual is English.
Instrumentarium Dental reserves the right to make changes in specification and features shown herein, or discontinue the product described at any time without notice or obligation. Contact your Instrumentarium Dental representative for the most current information.
Manufactured by |
Instrumentarium Dental, PaloDEx Group Oy |
|
Nahkelantie 160 (P.O. Box 20) |
|
FI-04300 Tuusula |
|
FINLAND |
|
Tel. +358 10 270 2000 |
|
Fax. +358 9 851 4048 |
For service, contact your local distributor.
Table of Contents
1 Introduction.................................................................................................................. |
1 |
|
1.1 |
FOCUS™ intraoral X-ray unit................................................................................ |
1 |
1.2 |
Scope .................................................................................................................... |
1 |
1.3 |
Associated documentation .................................................................................... |
2 |
1.4 |
Servicing warnings and precautions ..................................................................... |
2 |
2 Error messages and troubleshooting........................................................................ |
7 |
||
|
2.1 |
Error messages..................................................................................................... |
7 |
3 |
Service mode ............................................................................................................... |
9 |
|
|
3.1 |
FOCUS™ 2.0 ........................................................................................................ |
9 |
|
|
3.1.1 Entering the service mode ......................................................................... |
9 |
|
|
3.1.2 Error log, Sr 1............................................................................................. |
9 |
|
|
3.1.3 Reset error log, Sr 2................................................................................... |
9 |
|
|
3.1.4 Reset the exposure counter, Sr 3 .............................................................. |
9 |
|
|
3.1.5 Show tube type, Sr 4................................................................................ |
10 |
|
|
3.1.6 Calibration procedure of the unit .............................................................. |
10 |
|
|
3.1.6.1 Calibration ................................................................................. |
10 |
|
|
3.1.6.2 Calibration of AEC, Sr 6............................................................. |
11 |
|
|
3.1.7 After the service ....................................................................................... |
12 |
|
3.2 |
FOCUS™ 3.0 ...................................................................................................... |
13 |
|
|
3.2.1 Entering the service programs ................................................................. |
13 |
|
|
3.2.2 Service programs ..................................................................................... |
15 |
4 |
Upgrading the firmware ............................................................................................ |
19 |
|
|
4.1 |
FOCUS™ 2.0 ...................................................................................................... |
19 |
|
4.2 |
FOCUS™ 3.0 ...................................................................................................... |
20 |
5 Changing the generator board ................................................................................. |
23 |
||
|
5.1 |
FOCUS™ 2.0 ...................................................................................................... |
23 |
|
|
5.1.1 Old units, before s/n F1243...................................................................... |
23 |
|
|
5.1.2 Later units, after s/n F1243 ...................................................................... |
23 |
|
5.2 |
FOCUS™ 3.0 ...................................................................................................... |
25 |
6 Changing the horizontal arm.................................................................................... |
27 |
||
|
6.1 |
Removing the arm............................................................................................... |
27 |
|
6.2 |
Attaching the arm ................................................................................................ |
27 |
|
6.3 |
Leveling the arm.................................................................................................. |
28 |
7 Changing the tube head............................................................................................ |
29 |
||
|
7.1 |
FOCUS™ 2.0 ...................................................................................................... |
29 |
|
|
7.1.1 Changing the tube head (v1.6 and 2.0).................................................... |
29 |
|
|
7.1.2 Upgrading the tube head (V1.3-1.5) to 1.6............................................... |
32 |
|
|
7.1.3 Reset the exposure counter, Sr 3 ............................................................ |
38 |
|
7.2 |
FOCUS™ 3.0 (tubehead v3.0)............................................................................ |
39 |
|
|
7.2.1 Reset the exposure counter, Sr 3 ............................................................ |
43 |
51714-IMG rev 2 |
Instrumentarium Dental |
i |
8 Changing the voltage ................................................................................................ |
45 |
||
8.1 |
FOCUS™ 2.0 ...................................................................................................... |
45 |
|
|
8.1.1 |
Changing of the external fuses ................................................................ |
46 |
8.2 |
FOCUS™ 3.0 ...................................................................................................... |
47 |
|
|
8.2.1 |
Mains voltage: .......................................................................................... |
47 |
9 |
Setting the show mode ............................................................................................. |
49 |
|
|
9.1 |
FOCUS™ 2.0 ...................................................................................................... |
49 |
|
9.2 |
FOCUS™ 3.0 ...................................................................................................... |
50 |
10 |
After the service......................................................................................................... |
51 |
|
|
10.1 |
FOCUS™ 2.0 ...................................................................................................... |
51 |
|
10.2 |
FOCUS™ 3.0 ...................................................................................................... |
51 |
ii |
Instrumentarium Dental |
51714-IMG rev 2 |
1 Introduction
1Introduction
1.1FOCUS™ intraoral X-ray unit
FOCUS™ is a micro processor controlled intraoral X-ray unit with a HF DC generator, which produces high quality dental images with film or digital receptors.
A well balanced support arm is easy to move and very stable, keeping the unit motionless during the exposure.
This manual supports two FOCUS™ intraoral X-ray major design revisions, namely version 2.0 and version 3.0. See the correct chapter of the manual for each revision in a case they differ. Note, that spare parts should also be ordered accordingly.
The correct design revision can be recognized from the serial number of the X-ray device as follows:
Version |
serial number |
|
FOCUS™ 2.0 |
5000 |
– 7999 |
FOCUS™ 3.0 |
8000 |
– |
1.2 Scope
This document supplements User Manual and Installation manual for servicing the X-ray unit. This is not a standalone manual. Refer the Associated documentation to operate and to install the X-ray unit.
Only a trained and authorized service personnel are allowed to service the unit.
Disclaimer
Instrumentarium Dental endeavors to produce product documentation that is accurate and up to date. However, our policy of continual product development may result in changes to products that are not reflected in the product documentation. Therefore this document should be regarded as an infallible guide to current product specifications.
Instrumentarium Dental maintains the right to make changes and alterations without a prior notice.
51714-IMG rev 2 |
Instrumentarium Dental |
1 |
1 Introduction
1.3Associated documentation
51774 FOCUS™ user manual (translations available)
51775 FOCUS™ Installation manual
208643 FOCUS™ Spare parts cataloque
1.4Servicing warnings and precautions
General precautions
The FOCUS™ intraoral x-ray unit must only be serviced and repaired by service personnel who have been trained and approved by Instrumentarium Dental. This manual is an aid to servicing the units and is NOT a substitute for approved Instrumentarium Dental service training.
Before attempting to service a unit make sure that you know how to operate the FOCUS™. Read the FOCUS™ user's manual.
Only use original Instrumentarium Dental spare parts when repairing the unit or replacing parts.
Radiation Safety
Before servicing the unit familiarize yourself with local and national radiation safety standards and requirements relating to dental x-ray equipment.
If you need to take test exposures you MUST take adequate steps to protect yourself from radiation. Use a lead apron or stand behind a suitable radiation shield.
In addition, when taking exposures stand at least two meters (six feet) from the FOCUS™.
Mechanical safety
Switch the power off and disconnect the unit from the main power supply before removing any covers.
Disconnect the unit from the main power supply before repairing or replacing mechanical parts.
Be careful when handling the unit not to get body parts or clothing trapped between the articulated arm.
When replacing the tube head handle the articulated are carefully as it will move suddenly when the tube head is removed.
2 |
Instrumentarium Dental |
51714-IMG rev 2 |
1 Introduction
Electrical Safety
Switch the power off and disconnect the unit from the main power supply before replacing circuit boards or other electrical components. If there are capacitors on a circuit board or electrical component wait ten (10) minutes, after disconnecting the unit from the power supply, before handling the board or component.
Live electrical terminals are potentially dangerous.
Make sure that main power supply is OFF before removing covers or circuit boards.
This equipment should be used only in areas that are provided with a protective earth connection to ensure an equipotential ground connection.
Before cleaning or disinfecting the unit switch the main power supply off.
Electrostatic discharge
Electrostatic Discharge (ESD) can damage or destroy electronic components.
A static electricity charge builds up in everyone. The build up is due to movement, humidity, the person's clothing and the conductivity of the floor. If anyone charged with static electricity touches a electronic component the static electricity will discharge through the component and can damage or destroy it. Note that components damaged by electrostatic discharge can fail at a later date.
When servicing the unit take proper precautions to avoid electrostatic build up and discharge (ESD).
Follow the recommendations for the prevention of ESD that are used in the country in which you are working.
If no recommendations are available follow the guide lines below.
Before handling any electrical parts or components make sure that any static electricity charge that has built up in you body is discharged.
When handling electrical parts or components use an elasticated wrist wrap which is connected to a ground point through a 1 Mohm current limiting cable. For a ground point use water pipes, radiators or other
51714-IMG rev 2 |
Instrumentarium Dental |
3 |
1 Introduction
objects that are known to be connected to the ground.
Also use a cable to connect the unit to the same ground potential as the wrist wrap.
If an antistatic mat is used, connect the wrist wrap to the carpet and the carpet to the ground potential.
Wash the wrist wrap and check that it is good condition frequently.
Explosion Hazard
Certain disinfectants and cleaning agents may vaporize to form an explosive vapour. If such chemicals are used the vapour should be allowed to disperse before switching the unit on.
Operating warnings and precautions
The FOCUSTM intraoral x-ray must only be used to take intraoral exposures. It must not be used for any other purpose.
The unit or its accessories must not be modified, altered or remanufactured in any way. Repairing shall be performed by Instrumentarium Dental authorized service only.
As radiation safety and protection requirements vary from country to country and state to state it is the responsibility of the operator to ensure that all local and national radiation safety and protection requirements are met.
The use of ACCESSORY equipment not complying with the equivalent safety requirements of this equipment may lead to a reduced level of safety of the resulting system. Consideration relating to the choice shall include:
-use of the accessory in the PATIENT VICINITY
-evidence that the safety certification of the ACCESSORY has been performed in accordance to the appropriate IEC 601-1 or IEC 950 and/or IEC
601-1-1 harmonized national standard.
4 |
Instrumentarium Dental |
51714-IMG rev 2 |
1 Introduction
Unauthorized Modifications
Unauthorized changes or modifications to any part of the unit or its equipment can have hazardous consequences.
Changes or modifications must not be made unless specifically authorized by Instrumentarium Dental.
When properly assembled with a compatible beamlimiting device, the diagnostic source assembly will fully meet the United States of America Federal Performance Standards for Diagnostic X-Ray Systems and their Components (21 CFR 1020 .30-.32) provided no components or parts are removed from the unit and no unauthorized adjustments are made to the beamlimiting device or tube housing assembly.
Never remove or remanufacture any part of the tube head assembly or beam-limiting device unless under the direction of Instrumentarium Dental or their authorized distributor.
Never adjust any part of the beam-limiting device unless under the direction of Instrumentarium Dental or their authorized distributor.
Disposal
At the end of the useful working life of the equipment and/or its accessories make sure that you follow national and local regulations regarding the disposal of the equipment, its accessories, parts and materials.
The equipment includes some or all of the following parts that are made of or include materials that are non-environmentally friendly or hazardous:
-x-ray tube head (Pb, Be and mineral oil)
-all electronic circuit boards
Disclaimer
Instrumentarium Dental shall have no liability for consequential damages, personal injury, loss, damage or expense directly or indirectly arising from the use of its products.
No agent, distributor or other party is authorized to make any warranty or other liability on behalf of
Instrumentarium Dental with respect to its products.
51714-IMG rev 2 |
Instrumentarium Dental |
5 |
1 Introduction
6 |
Instrumentarium Dental |
51714-IMG rev 2 |
2 Error messages and troubleshooting
2 Error messages and troubleshooting
2.1 Error messages
The error messages are grouped into two categories: User errors (H) and system fault errors (E). User errors must either be acknowledged or it will be removed once the error is corrected. When system faults occur, a service technician should be contacted.
Code |
Error or |
Action |
|
Failure |
|
|
|
|
E1 |
KV failure |
Check the fuses. |
|
|
Check the cable connections. |
|
|
Check LA1 light on the |
|
|
generator board: |
|
|
ON -> Change the tube head |
|
|
OFF -> Change the generator |
|
|
module. |
|
|
|
E2 |
MA failure |
Check the fuses. |
|
|
Check the cable connections. |
|
|
Switch off and on the unit and |
|
|
calibrate it. |
|
|
Change the tube head. |
|
|
|
E3 |
PREH |
Check the cable connections. |
|
failure |
Switch off and on the unit and |
|
|
calibrate it. |
|
|
Change the generator module. |
|
|
|
E4 |
Tube head |
Wait for valid tube head |
|
too hot or |
temperature |
|
too cold |
|
|
|
|
E5 |
DC voltage |
Check the line voltage. |
|
out of range |
Change the generator module. |
|
|
|
E6 |
Sigma link |
Check Sigma-FOCUS™ |
|
error or |
interface cable and cable |
|
sensor not |
connections |
|
ready |
|
|
|
|
E7 |
EEPROM |
1) Reset parameters (kV+D) |
|
failure |
2) Change CPU |
|
|
|
Necessary |
Duty cycle |
Wait for tube to cool |
waiting time |
|
|
|
|
|
H2 |
Premature |
Acknowledge with UP or |
Note: H2 |
button |
DOWN button |
flashes |
release |
|
alternately |
|
|
with elapsed |
|
|
exposure |
|
|
time |
|
|
|
|
|
51714-IMG rev 2 |
Instrumentarium Dental |
7 |
2 Error messages and troubleshooting
Code |
Error or |
Action |
|
|
Failure |
|
|
|
|
|
|
H3 |
Door switch |
In case a door switch is in use, |
|
|
error: door |
close the door to enable |
|
|
open. When |
exposure. Otherwise check |
|
|
a door |
that the dipswitch no.1 is in on- |
|
|
switch is |
position on the connection box |
|
|
connected |
board. |
|
|
to the |
|
|
|
connection |
|
|
|
box. |
|
|
|
|
|
|
H4 |
Door switch |
In case a door switch is in use, |
|
|
error: door |
close the door to enable |
|
|
open. When |
exposure. Otherwise check |
|
|
a door |
that the dipswitch no.2 is in on- |
|
|
switch is |
position on the remote control |
|
|
connected |
board. |
|
|
to the |
|
|
|
remote |
|
|
|
control. |
|
|
|
|
|
|
H5 |
System in |
Go to the user mode by |
|
|
Service |
pressing two buttons |
|
|
mode |
simultaneously (1). |
|
|
|
1 |
1 |
|
|
|
|
H6 |
Current |
Change resolution mode to |
|
|
Sigma |
minimum dose in CliniView. |
|
|
clocking |
This error message may |
|
|
mode and |
appear only with CliniView 3.0 |
|
|
resolution |
or earlier. |
|
|
selection do |
|
|
|
not support |
|
|
|
AEC. |
|
|
|
|
|
|
H7 |
Exposure |
Too much attenuation between |
|
|
out of |
the sensor and the tube. Check |
|
|
range, |
that tube head and sensor are |
|
|
exposure |
correctly aligned. |
|
|
cancelled. |
|
|
|
(in AEC |
|
|
|
mode) |
|
|
|
|
|
|
8 |
Instrumentarium Dental |
51714-IMG rev 2 |
3 Service mode
3Service mode
3.1FOCUS™ 2.0
3.1.1 Entering the service mode
Set the CPU board´s Serv switch to the ON position.
Press the D button on the remote control at least two seconds until “Sr1” appears on the display.
Scroll with the arrow keys until the right service code appears on the display.
3.1.2 Error log, Sr 1
Press kV button to get in Sr1.
You can view last ten error/multification messages by browsing with arrow keys.
3.1.3 Reset error log, Sr 2
Press kV button when “Sr 2” is selected in order to clear error log.
3.1.4 Reset the exposure counter, Sr 3
Each unit has the counter which counts the number of the exposures. The counter should be reset if the tube head has been changed. Enter the service mode.
Scroll with the arrow keys until “Sr3” appears on the display.
Press kV button. The unit beeps twice when the counter is reset.
51714-IMG rev 2 |
Instrumentarium Dental |
9 |
3 Service mode
3.1.5 Show tube type, Sr 4
Scroll with arrow keys until “sr 4” appears on the display. Press kV button to enter the program. Tube type is shown on the screen.
3.1.6 Calibration procedure of the unit
3.1.6.1Calibration
The unit must be calibrated always after the tube head, CPU board, EPROM microchip or the voltage setting has been changed. By calibration the tube current and preheat are adjusted into the limits.
The calibration is performed with the nominal voltage (115
V or 230 V).
Scroll with the arrow keys until the “Sr5” appears on the display.
Press the kV button once until “Ca1” appears on the display. Unit is ready for tube current (7mA) calibration.
Press the exposure button until the unit beeps twice and
“Ca2” appears on the display. You may need to press the exposure button several times until the calibration is succeeded.
Unit is ready for 60kV preheat calibration.
Press the exposure button until the unit beeps twice and “Ca3” appears on the display. You may need to press the exposure button several times until the calibration is succeeded.
Unit is ready for 70 kV preheat calibration.
Press the exposure button until the unit beeps three times and “Sr5” appears on the display. You may need to press the exposure button several times until the calibration is succeeded.
10 |
Instrumentarium Dental |
51714-IMG rev 2 |
3 Service mode
The unit is now calibrated.
3.1.6.2Calibration of AEC, Sr 6
NOTE! This service program is used in units from s/n 2141 and in units with FOCUS™ AEC kit installed.
In this service program you can calibrate AEC. The calibration affects the exposure level that is shown with the image information. The exposure level must be between 80% and 100% for a correctly working AEC and optimum image. If the level is not within the range, you can adjust so called multiplier and offset value to correct the exposure level.
Multiplier is a variable in the exposure time formula of the AEC. Multiplier alternatives are 7/5, 7/4, 2/1, 7/3, 5/2, 3/1, 7/2 and 4/1. Increasing the multiplier raises the exposure level and decreasing of the multiplier lowers the exposure level.
However, in case of small attenuation, for instance a bitewing image of a toothless patient, AEC would produce too low exposure levels (<80%) if only multiplier value was adjusted. Then also the offset value is needed to be set.
Offset value is a fixed amount of time that is added to every AEC exposure. Offset alternatives are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10 milli-seconds.
Before entering program Sr6, put AEC on and make an exposure of a 10 mm thick Al-plate (or any attenuation that is 10 mm Al eqvivalent) and another exposure without anything but air between sensor and cone of FOCUS™. Both exposures with AEC, 60 kV and as short distance as possible between the Sigma sensor and cone of FOCUS™. Check the exposure level percentage from the image information of both images. If it is not between 80% and 100% in either image, adjust multiplier and/or offset as follows.
Multiplier
1.Enter the service program mode by setting the service switch to ON position. Scroll with the arrow keys untill the “Sr6” appears on the display. Press the kV button to enter the program.. Scroll with the arrow keys until the “Sr6” appears on the display. Press the kV button to enter the program.
2.You can scroll through the multipliers with arrow keys.
Choose the multiplier.
51714-IMG rev 2 |
Instrumentarium Dental |
11 |
3 Service mode
3.Enter the user program mode by setting the service switch to OFF position. Select 60 kV, check that AEC is on (led next to AEC button is illuminating) and make an exposure of the Al-plate.
4.Check the exposure level from the image information dialogue.
5.Make another adjustment if necessary (enter the service program mode etc.)
Offset
1.Enter the service program mode by setting the service switch to ON position. Scroll with the arrow keys until the “Sr6” appears on the dispaly. Press the kV button to enter the program which is dispayed as fraction.
2.Press the patient button to enter the offset level.
3.Select the offset value by scrolling with arrow keys.
4.Enter the user program mode by setting service switch to OFF position. Select 60 kV, check that AEC is on
(led next to AEC button is illuminating) and make exposure without anything but air between the sensor and the cone of FOCUS™.
5.Check the exposure level from the image information dialogue.
6.Make another adjustment if necessary (enter the service program mode etc.).
3.1.7 After the service
1.Exit service program by pressing the D button until the exposure time appears on the display.
2.Set the service and test switches off.
3.Lift the electronics. It is easier to slide the cables back in if you remove the horizontal arm cap near the wall mounting and pull gently the cables by your hand from the end of the arm.
NOTE! Do not pinch the wires between the horizontal arm and the bottom plate while lifting the electronics board.
4.Make one test exposure to make sure that the unit works properly.
12 |
Instrumentarium Dental |
51714-IMG rev 2 |
Loading...