OERTLI OS 4 User manual

2021-03-23 / Rev. 10 VV016042 2
CAUTION:
U.S. Federal Law restricts this device to sale by or on the order of a physician.
0297
Document no: VV016042
Version: 10
Date of publication: 2021-03-23
Original service manual
© Oertli Instrumente AG. All rights reserved.
Oertli and the Oertli logo are registered trademarks of Oertli Instrumente AG.
OS 4, SPEEP, HFDS and ParaProg are trademarks of Oertli Instrumente AG.
This service manual shall not be used without authorization for competitive purposes without explicit consent of Oertli Instru-
mente AG.
Subject to modifications.
Contact and service:
Oertli Instrumente AG
Customer Service and Support
Hafnerwisenstrasse 4
CH –9442 Berneck, Switzerland
Tel: [phone]
Fax: [phone]
E-mail: [email protected]
Website: www.oertli-instruments.com

2021-03-23 / Rev. 10 VV016042 3
Contents
1About this document ................................................................................................................................................6
1.1 Warnings and symbols in this manual ...............................................................................................................6
1.2 Warnings and symbols on the unit.....................................................................................................................6
2Safety instructions....................................................................................................................................................7
3Abbreviations and terms..........................................................................................................................................7
4Device overview / versions.......................................................................................................................................7
4.1 General overview...............................................................................................................................................7
4.2 Anterior posterior segment version VC86020X..................................................................................................8
4.3 Anterior posterior segment version with endo laser function VC86030X ...........................................................8
5Block diagram OS4 ...................................................................................................................................................8
6Installation .................................................................................................................................................................9
6.1 General remarks................................................................................................................................................9
6.2 Power supply.....................................................................................................................................................9
6.3 Infusion pole ....................................................................................................................................................10
6.4 Door remote switch (DRS) for endo laser module ...........................................................................................10
7Service mode operation..........................................................................................................................................11
7.1 Login and main menu......................................................................................................................................11
7.2 Configuration of the unit...................................................................................................................................12
7.3 Pedal status.....................................................................................................................................................16
7.4 Sensor calibration............................................................................................................................................17
7.5 Pedal calibration..............................................................................................................................................17
7.6 Check - Logging...............................................................................................................................................18
8OS 4 service tools...................................................................................................................................................18
8.1 Conversion of the surgeon memory.................................................................................................................18
8.1.1 Procedure for converting a database from a device with SW version 1.5.x.................................................19
8.1.2 Procedure for converting a database from a device with SW version 1.4.0.................................................19
8.1.3 Procedure for converting a database from a device with SW version 1.3.0.................................................20
8.1.4 Trouble shooting..........................................................................................................................................22
8.2 Loading of calibration values of spare parts ....................................................................................................23
8.2.1 Installation of the driver software.................................................................................................................23
8.2.2 Loading of adjustment values with the service tool .....................................................................................25
9Endo laser system calibration ...............................................................................................................................28
9.1Laser safety.....................................................................................................................................................28
9.2 General servicing procedure............................................................................................................................29
9.3Maintenance schedule.....................................................................................................................................29
9.4 Inspection and cleaning of test fibre ................................................................................................................29
9.5 Laser servicing software..................................................................................................................................30
9.5.1 Introduction..................................................................................................................................................30
9.5.2 Installation...................................................................................................................................................31
9.6 Overview of laser service and maintenance ....................................................................................................32
9.7 Calibration procedure ......................................................................................................................................33
9.7.1 Preparation for calibration ...........................................................................................................................33
9.7.2 Fibre check..................................................................................................................................................37
9.7.3 Short calibration guideline –power laser PLD (working beam)...................................................................38
9.7.4 Short calibration guideline –target laser TLD (aiming beam)......................................................................40
9.8 Remote servicing –second level support ........................................................................................................43
10 Device composition ................................................................................................................................................43
10.1 PCB overview..................................................................................................................................................43
10.1.1 Unit..............................................................................................................................................................43
10.1.2 Pedal...........................................................................................................................................................43
10.2 Core PCB ........................................................................................................................................................44
10.3 Power PCB......................................................................................................................................................46
10.4 Supply PCB .....................................................................................................................................................47
10.5 Carrier print......................................................................................................................................................48
10.6 Fluidic PCB......................................................................................................................................................50
10.7 Control panel PCB...........................................................................................................................................51
10.8 (Power) LED module PCB...............................................................................................................................51
10.9 (Power) LEDplus module PCB.........................................................................................................................52
10.10 Air sensor PCB................................................................................................................................................53
10.11 Visco sensor PCB............................................................................................................................................53
10.12 Vit pn sensor PCB ...........................................................................................................................................53
10.13 Wireless module..............................................................................................................................................53
10.14 Fluidic sensor PCB..........................................................................................................................................54
10.15 Pedal PCB.......................................................................................................................................................54

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10.16 Power supplies ................................................................................................................................................55
10.16.1 Isolation transformer....................................................................................................................................55
10.16.2 Power supply 24 VDC .................................................................................................................................56
10.16.3 Power supply 12 VDC .................................................................................................................................56
11 Installing and uninstalling of device components ...............................................................................................57
11.1 General............................................................................................................................................................57
11.1.1 Fuses...........................................................................................................................................................57
11.1.2 Hook for infusion pole..................................................................................................................................57
11.1.3 Front castor wheel.......................................................................................................................................58
11.1.4 Back castor wheel .......................................................................................................................................58
11.1.5 Housing.......................................................................................................................................................60
11.1.6 Front enclosure ...........................................................................................................................................62
11.1.7 Power supply 24 VDC .................................................................................................................................64
11.1.8 Power supply 12 VDC .................................................................................................................................65
11.1.9 Varistor / isolation transformer assembly.....................................................................................................65
11.1.10 Drive for infusion pole..................................................................................................................................66
11.1.11 System unit..................................................................................................................................................68
11.1.12 Supply PCB.................................................................................................................................................70
11.1.13 Wireless module..........................................................................................................................................70
11.1.14 Carrier print .................................................................................................................................................71
11.1.15 Holder for Gas Forced Infusion (GFI)..........................................................................................................73
11.1.16 Control panel...............................................................................................................................................73
11.1.17 Phaco connector .........................................................................................................................................77
11.1.18 DIA connector..............................................................................................................................................78
11.1.19 Fluidics unit .................................................................................................................................................78
11.1.20 GFI module..................................................................................................................................................84
11.1.21 AIR module..................................................................................................................................................87
11.1.22 Visco module...............................................................................................................................................89
11.1.23 Vit-PN module.............................................................................................................................................92
11.1.24 Source pressure module .............................................................................................................................94
11.2 Components of posterior version.....................................................................................................................95
11.2.1 Power LEDplus module...............................................................................................................................95
11.2.2 Power LED module .....................................................................................................................................96
11.3 Components of laser version...........................................................................................................................97
11.3.1 Spare key for endo laser .............................................................................................................................97
11.3.2 Laser –DRS dongle....................................................................................................................................97
11.3.3 Protection cap for laser................................................................................................................................97
11.3.4 Fibre coupling unit for endo laser ................................................................................................................98
11.3.5 Endo laser module ......................................................................................................................................99
11.3.6 Exchange of Connecting cable laser to UPF connector ............................................................................101
12 Software update ....................................................................................................................................................103
12.1 Update order..................................................................................................................................................103
12.2 General updating procedure..........................................................................................................................104
12.3 Versions.........................................................................................................................................................105
12.3.1 Version 2.0.0.............................................................................................................................................105
12.3.2 Versions 1.5.x............................................................................................................................................105
12.3.3 Version 1.4.0.............................................................................................................................................106
12.3.4 Version 1.3.0.............................................................................................................................................107
12.3.5 Version 1.2.0.............................................................................................................................................107
12.3.6 Version 1.1.0.............................................................................................................................................107
13 Installing and uninstalling of pedal components...............................................................................................108
13.1 Pedal housing................................................................................................................................................108
13.1.1 Pedal housing up to serial no. 80670098 ..................................................................................................108
13.1.2 Pedal housing from serial no. 80670099...................................................................................................109
13.2 Sealing set.....................................................................................................................................................110
13.3 Rechargeable battery ....................................................................................................................................112
13.4 Pedal PCB.....................................................................................................................................................113
13.5 Connecting Rod.............................................................................................................................................114
13.6 Sensors .........................................................................................................................................................116
13.6.1 Horizontal pedal sensor.............................................................................................................................116
13.6.2 Vertical pedal sensor.................................................................................................................................118
13.7 Rubber mat....................................................................................................................................................120
13.8 Protection sheet.............................................................................................................................................120
13.9 Pedal handle..................................................................................................................................................121
13.10 Side switches left or right...............................................................................................................................122
13.11 Wireless module............................................................................................................................................123
13.12 Cable for pedal ..............................................................................................................................................123
14 Messages, warnings and error messages / fault correction .............................................................................124
14.1 Information and warnings ..............................................................................................................................124

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14.2 Error Messages .............................................................................................................................................126
15 Authorized service points ....................................................................................................................................129
15.1 Sending defective device, instrument or part to Oertli ...................................................................................129
16 Appendix A) Recommended service tools for laser...........................................................................................130
17 Appendix B) Spare parts ......................................................................................................................................132
17.1 Spare parts for the unit..................................................................................................................................132
17.2 Spare parts for pedal.....................................................................................................................................133
17.3 Set of replacement screws ............................................................................................................................133
17.4 Set of small replacement parts ......................................................................................................................133
18 Appendix C) Safety check ....................................................................................................................................134
19 Appendix D) Functional test.................................................................................................................................136
20 Appendix E) Laser installation protocol..............................................................................................................147

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1 About this document
The service manual is a supplement to VV016040 OS 4 instructions for use and describes safe and appropriate service and
maintenance of the device.
The technical data of the unit can be found in the technical data chapter in the instructions for use.
1.1 Warnings and symbols in this manual
Warning sign/word
Danger level
Consequences of non-compliance
DANGER!
Imminent danger
Death, serious injury
WARNING!
Possible danger
Death, serious injury
CAUTION!
Possibly dangerous
situation
Slight injury
NOTE!
Possibly dangerous
situation
Material damage
Explanation of the structure of a warning message using the example of a warning:
WARNING!
Indication of the hazard
Indication of a potential impact
►Steps to take to avoid the hazard.
Symbol
Meaning
Safety sign
Electrostatic sensitive devices
Information that facilitates easier handling of the device
1.2 Warnings and symbols on the unit
Warning label
LASER CLASS 4/3R
PRODUCT
Refer to VV016040
OS 4 instructions for use

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2 Safety instructions
DANGER!
Electric shock
Risk of death or serious injury
►Unplug mains power cord before opening the unit!
DANGER!
Laser radiation of working beam
Eye or skin damage
►Avoid eye or skin exposure to direct, indirect or scattered radiation.
CLASS 4 LASER PRODUCT
WARNING!
Laser radiation of aiming beam
Eye or skin damage
►Avoid direct eye exposure.
CLASS 3R LASER PRODUCT
WARNING!
Repairs to the device may only be performed by service technicians authorized
by Oertli and based on the last valid version of the service manual. Improper
repairs can compromise the safety of staff and patients and will void any war-
ranty.
NOTE!
This unit contains Electrostatic Sensitive Devices (ESD). When opening the
unit, it is very important that both you and the unit are grounded at all times.
3 Abbreviations and terms
ccw/cw
Counter clock wise / clock wise
na
Not applicable
PLD
Power Laser Diode working beam of laser
TLD
Targed Laser Diode aiming beam of laser
MED
MEasuring Diode of the laser module
4 Device overview / versions
4.1 General overview

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4.2 Anterior posterior segment version VC86020X
1
N. a.
7
Connector for AIR
2
Connector for Visco (EXTRACTION/IN-
JECTION)
8
Connector for pneumatic cutter (green)
3
N. a.
9
Connector for high frequency applications (DIA,
CAPS, HFDS GLAU)
4
Connector for PHACO handpiece
10
Connector for light LUM 2
5
Connector for pneumatic cutter (black)
11
Connector for light LUM 1
6
Connector for gas forced infusion (GFI)
12
N. a.
4.3 Anterior posterior segment version with endo laser function VC86030X
1
Button LASER STOP
7
Connector for AIR
2
Connector for Visco (EXTRACTION/IN-
JECTION)
8
Connector for pneumatic cutter (green)
3
Connector for laser probe
9
Connector for high frequency applications (DIA,
CAPS, HFDS GLAU)
4
Connector for PHACO handpiece
10
Connector for light LUM 2
5
Connector for pneumatic cutter (black)
11
Connector for light LUM 1
6
Connector for gas forced infusion (GFI)
12
Key switch for LASER
5 Block diagram OS4

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6 Installation
6.1 General remarks
When placing the device, ensure clearance of at least 20 cm around the ventilation openings. Do not cover the device when
in operation.
6.2 Power supply
WARNING!
Live components are exposed. Improper work on the device.
Risk of electric shock.
►Unplug power cable from mains socket before replacing fuses.
►Do not use any makeshift fuses.
The device is supplied with two spare fuses. Always replace defective fuses with
new fuses of the same type.
You will find the values printed next to the power source on the device.
The device is designed for two separate voltage ranges.
Type
Value
Supply system
Voltage: 115 VAC
Frequency: 50 Hz/60 Hz
Output: 600 VA
Type
Value
Supply system
Voltage: 230 VAC
Frequency: 50 Hz/60 Hz
Output: 600 VA
Select the voltage at the fuse drawer before using the unit for the first time.
1. Hold down the tab of the fuse drawer.
2. Remove the fuse drawer.
The position of the voltage selector in the fuse drawer (to the left or to the right) determines the mains voltage (115 V or
230 V).

2021-03-23 / Rev. 10 VV016042 10
3. If necessary, replace the defective fuse.
4. Insert the voltage selector in such a way that the correct mains voltage is displayed in the viewing window.
- 115 V: 115 V must be displayed in the viewing window of the voltage selector.
- 230 V: 230 V must be displayed in the viewing window of the voltage selector.
5. Reinsert the fuse drawer.
6.3 Infusion pole
1. Insert (4) infusion pole (1) into the holder (3).
2. Firmly rotate the infusion pole in the direction of the arrow (5).
3. If the infusion hooks are not at a 45-degree angle to the device, proceed as follows:
Use an Allen key to loosen the screw (2), position infusion pole at a 45-degree angle as illustrated above and secure
screw once more.
6.4 Door remote switch (DRS) for endo laser module
1. Unscrew the cap (1).
2. Remove the cover (2).
3. Remove the cable bridge (3). Use these pins to connect the door switch.

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7 Service mode operation
7.1 Login and main menu
Reset the device and enter service mode by pushing the „lock“ button. Enter the password 9442 and commit.
The following information is displayed on the service mode main screen:
Serial number
Software versions

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7.2 Configuration of the unit
Configuration system
IrrPole limit:
Maximum height of irrigation pole (meas-
ured from ground), valid for all surgeons.
Please be aware that due to a
smooth control of the infusion,
the irrigation pole can exceed
the stored limit by approx. 5 cm
when increasing the bottle
height.
Automatic IrrPole move:
Indicates whether the irrigation pole is
moved automatically when the following
events occur:
-Cassette is inserted: infusion pole travels
at the stored value of the programme se-
lected. The infusion pole does not travel in
the start level.
-Cassette is ejected: infusion pole travels
downwards.
Cutting pressure:
Indicates whether low or high pressure is
used for cutting in VIT functions. Valid for all
surgeons.
User protection filter:
Indicates whether a passive or active user
protection filter is used with the OS 4. This
setting is valid for all surgeons.
In case of the usage of an active
user protection filter, make sure
that the integrated laser is of
software version 1.N or higher
and an actual UPF cable
(11.3.6) is implemented.
Configuration Surgeon Memory
Lock all configurations:
Enable (Off) or block (On) the possibility of
storing surgeons settings.
Single Surgeon Memory:
Under Single Surgeon Memory, the surgeon
memory of a single surgeon is managed.
The following actions can be triggered:

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Reset a single surgeon memory:
To set settings of a single surgeon memory
to default values, please proceed as follows:
1. Select a surgeon memory to be reset to
default values from the drop-down field
under “single surgeon memory”.
2. Press the Reset button
3. The message “Confirm to reset surgeon
xy: The selected target memory will set
to default.” appears. Confirm with OK.
4. The message “Reset successful” ap-
pears.
Export a single surgeon memory to a
USB stick:
To export a single surgeon memory to a
USB stick, please proceed as follows:
1. Insert USB stick into the USB port of the
device. The Export button is enabled.
2. Select a surgeon memory from the drop-
down field to be exported
3. Press the Export button
4. The message “Export successful” ap-
pears
Only use an Oertli service USB
flash drive in conjunction with
the OS 4.
Import of single surgeon memory from a
USB stick:
To import a single surgeon memory from a
USB stick, please proceed as follows:
1. Insert USB stick into the USB port of the
device. The Import button is enabled.
2. Select a surgeon memory from the drop-
down field, where the surgeon memory
from the USB stick shall be imported.
3. Press the Import button
4. Select a valid single surgeon memory
file from the USB stick and press
“Open”.
5. The message “Confirm to import sur-
geon memory: The selected target
memory surgeon xy will be overwritten”
appears. Confirm with OK.
6. The message “Import successful” ap-
pears.
Only use an Oertli service USB
flash drive in conjunction with
the OS 4.

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Copy a single surgeon memory:
To copy a single surgeon memory within a
OS 4 platform, please proceed as follows:
1. Select a surgeon memory to be copied
from the drop-down field under “single
surgeon memory”.
2. Select a target surgeon memory from
the “copy to”- drop-down field to deter-
mine where the surgeon memory is cop-
ied.
3. Press the Copy button
4. The message “Confirm to copy surgeon
memory: The selected target memory
surgeon xy will be overwritten”. Confirm
with OK.
5. The message “Copy successful” ap-
pears.
The copied surgeon's memory
is indicated by the suffix (1)
(e. g. Dr. Oertli (1)).
Complete Surgeon memory
The OS 4 administers two different com-
plete surgeon memories:
1. Active memory: surgeon memory cur-
rently in use
2. Inoperable memory: previous version of
surgeon memory
Export of surgeon memory:
It is possible to export the active memory as
well as the inoperable memory to an USB
stick. To do this, please proceed as follows:
1. Insert USB stick into the USB port of the
device.
2. Press the “Export” key.
Import of surgeon memory:
1. Insert the USB stick that contains the
surgeon memory to be imported into the
USB port of the device.
2. Remove inoperable memory.
3. The message „Inoperable memory re-
moved” will appear.
4. Press the „Import“ key.
5. The message „Import completed. Re-
start to apply.“ appears. The imported
surgeon memory is located in the active
memory. The previously used surgeon
memory is now located in the inoperable
memory.
6. Restart the device.
Reset of surgeon memory:
Set the entire surgeon memory to default.
1. Remove inoperable memory.
2. Press the “Reset” key.
3. The message „Reset completed. Restart
to apply“ will appear.
4. Restart the device.

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Configuration Surgeon Order
Press the “Up” or “Down” button to move a
single surgeon forward or backward in the
sequence of the surgeon memory. Press the
Save button to save the new surgeon order.
Configuration Date / Time
Change:
To change date and/or time press the
button <Change>.
[ + ] [ - ]:
Change date and time values by pressing
the relevant buttons.
Commit:
Save new settings.

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Configuration display touch
Backlight front screen:
Change the brightness of the display with
the +/- buttons.
7.3 Pedal status
Status pedal
The actual pedal status as well as the sta-
tus of the laser switch is displayed.

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7.4 Sensor calibration
Calibration sensors
Store actual offset values of the sensors
displayed by touching <Calibrate>.
DANGER!
Incorrect calibration
Risk of eye damage to pa-
tient
►No instruments shall be
connected to the device
while calibrating sensors.
7.5 Pedal calibration
Calibration pedal
Before adjusting and pairing the
pedal make sure that it is con-
nected with cable to the OS 4.
Turn off the device, wait for 20 sec. at
the minimum
Connect pedal with cable to the OS 4
Turn on the device
Call up the service mode (see 7.1)
Pedal Adjustment:
The pedal adjustment has to be
carried out before the pedal
pairing is started.
Make sure that the foot pedal is
placed on the ground.
Push <Start> to begin with the cali-
bration routine.
Move to pedal position shown on the
sequence and <Confirm>.
Pedal Pairing:
In the menu <Calibration> select <Pe-
dal>
Push the button <Start Pairing>
As soon as the pairing is finished, the
message “Success” appears.
Establish radio communication:
Connect pedal with cable to the OS 4
Push the button <Enable Wireless>
Turn off radio communication:
Connect pedal with cable to the OS 4
Push the button <Disable Wireless>

2021-03-23 / Rev. 10 VV016042 18
7.6 Check - Logging
Export all log files to USB:
Plug in USB flash drive
Push the button <Export all log files to
USB>
Unplug USB flash drive
Only use an Oertli service USB
flash drive in conjunction with
the OS 4.
8 OS 4 service tools
8.1 Conversion of the surgeon memory
The following chapter describes the procedure in the case of an external conversion of a surgeon memory. The following
equipment is required:
Laptop with an USB interface.
USB stick with a database exported from a device with SW version 1.3.0 or higher
Software for converting the surgeon database (OS4_Database_Conversion.exe)
The software for converting the database does not have to be installed onto the laptop. Simply copying the software onto the
laptop or executing it directly from a USB stick is enough.
Convert the surgeon database before performing the software update. Otherwise, in the case of a faulty data-
base (especially as regards pedal assignments), corrections cannot be made anymore!
The converted database must be located on a USB stick in the folder „dbexport“ so that it can be imported
into the OS 4. This folder must be at the highest level within the data system of the USB stick. This is set as a
default in the case of a database export from an OS 4 device onto a USB stick as well as after a database
conversion.
The latest version of the software for converting the surgeon database (version 1.3.4 or higher; OS 4_Data-
base_Conversion.exe) can be used for conversion of the surgeon database from software 1.3.0 to software
1.4.0 (8.1.3), software 1.4.0 to software 1.5.x (8.1.2) or software 1.5.x to software 2.0.x (8.1.1).

2021-03-23 / Rev. 10 VV016042 19
8.1.1 Procedure for converting a database from a device with SW version 1.5.x
1. Export complete surgeon database from
device with SW 1.5.x to USB according
to 7.2.
2. Insert the USB stick containing the ex-
ported surgeon database into the USB
port of your laptop.
3. Start the software for the conversion of
the surgeon database.
(OS 4_Database_Conversion.exe)
4. Click on the „Browse db-files“ button and
select exported database.
5. After successful loading of the file (Sta-
tus „File loaded“), start the conversion
process by clicking on „Start conversion“.
6. Successful conversion is indicated by the
display of the status message „Database
export completed“ and is confirmed by a
green background of the status field.
7. The converted database has been stored
at the place of origin (normally on the
USB stick). The original database has
been stored as a backup copy with the
ending of the corresponding scheme ver-
sion.
8. The software of the device can now be
updated to software package 2.0.x
(12).
9. Following a successful software update,
the converted database has to be loaded
into the device according to 7.2.
8.1.2 Procedure for converting a database from a device with SW version 1.4.0
1. Export surgeon database from device
with SW 1.4.0 to USB according to 7.2.
2. Insert the USB stick containing the ex-
ported surgeon database into the USB
port of your laptop.
3. Start the software for the conversion of
the surgeon database.
(OS 4_Database_Conversion.exe)
4. Click on the „Browse db-files“ button and
select exported database.
5. After successful loading of the file (Sta-
tus „File loaded“), start the conversion
process by clicking on „Start conversion“.
6. Successful conversion is indicated by the
display of the status message „Database
export completed“ and is confirmed by a
green background of the status field.

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7. The converted database has been stored
at the place of origin (normally on the
USB stick). The original database has
been stored as a backup copy with the
ending of the corresponding scheme ver-
sion.
8. The software of the device can now be
updated to software package 1.5.x
(12).
9. Following a successful software update,
the converted database has to be loaded
into the device according to 7.2.
8.1.3 Procedure for converting a database from a device with SW version 1.3.0
The conversion tool requires that following a software update to SW 1.3.0 all pedal assignments must be re-
selected for the surgeon memories that have been used. If a database is to be converted that has not previ-
ously undergone this process, a single option is offered to set back to default all pedal assignments of a sur-
geon, of which the pedal assignments have not been reselected.
1. Export surgeon database from device
with SW 1.3.0 to USB according to
7.2.
2. Insert the USB stick containing the
exported surgeon database into the
USB port of your laptop.
3. Start the software for the conversion
of the surgeon database.
(OS 4_Database_Conversion.exe)
4. Click on the „Browse db-files“ button
and select exported database.
5. After successful loading of the file
(Status „File loaded“), start the con-
version process by clicking on „Start
conversion“.
6. If none of the laser pedal assign-
ments have been correctly set, a
popup window will open up, in which
laser pedal assignments are as-
sessed.
Valid laser pedal assignments:
For these surgeons, the laser
pedal assignments (sections
and buttons) have been cor-
rectly set.
Invalid laser pedal assignments:
For these surgeons, the laser
pedal assignments (sections or
buttons) have not been correctly
set.
There are two possibilities of how to
proceed:
Click on the button “Replace in-
valid laser assignments by de-
fault”: Only invalid laser pedal
assignments will be replaced by
the corresponding default set-
tings.