Block Optic Ideo User manual

Block Optic Ltd.
Semerteichstr. 60 Phone: +49(0) 231 / 10 87 78 50
D- 44141 Dortmund Fax: +49(0) 231 / 17 63 065 email: [e-mail]
Manual
Ideo (Easy or PLD)
manual as of 2012
Update: January 2016
Subject to modifications and amendments!

Examination Unit "Ideo"
Block Optic Ltd., Semerteichstr. 60, 44141 Dortmund, Germany, Phone: +49(0) 231 / 10 87 78 5-0, Fax: +49(0) 231 / 17 63 065
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Index
1 Device Specifications ........................................................................................................ 3
2 Important information for assembly, use, maintenance and repair .................................... 6
2.1 Required space and connection requirements ........................................................... 6
3 Packaging ......................................................................................................................... 7
4 Scope of supply ................................................................................................................ 8
4.1 System components of the basic equipment .............................................................. 8
4.2 Accessories (Optional) ............................................................................................... 9
5 Appliance description ..................................................................................................... 11
5.1 Basic concept ........................................................................................................... 11
5.2 Phoropter rail with Phoropter arm (optional) ............................................................. 12
5.3 Storage of small instruments .................................................................................... 12
5.4 Automatic room lighting (optional) ............................................................................ 13
5.5 Desk extension (optional) ......................................................................................... 13
5.6 Patient chair (optional) ............................................................................................. 13
5.7 Voltage-Tower (optional) ........................................................................................... 14
5.8 Wall connection box (WAK) ...................................................................................... 15
6 Operation and safety functions ....................................................................................... 16
6.1 Keyboard .................................................................................................................. 16
6.2 Handling of the swivel-telescopic table ..................................................................... 18
6.3 Handling of the motor-driven chair ........................................................................... 18
6.4 Setting up the desired room light .............................................................................. 18
6.5 Safety precautions .................................................................................................... 19
7 Maintenance, cleaning, care and disposal ...................................................................... 21
8 Technical Data ................................................................................................................ 23
9 E.G.-Declaration of Conformity ....................................................................................... 25

Examination Unit "Ideo"
Block Optic Ltd., Semerteichstr. 60, 44141 Dortmund, Germany, Phone: +49(0) 231 / 10 87 78 5-0, Fax: +49(0) 231 / 17 63 065
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Thank you very much for your confidence which
you expressed by purchasing this examination
unit. With our Ideo you have chosen a modern fully
developed product which has been produced and
tested according to strict quality criteria.
Continuous research and development might lead
to changes in version and scope of supply. The
figures in this instruction manual might therefore
be slightly different in some cases. The right-hand
version is displayed. The setting is mirrored
accordingly in the left-hand setting. If you have any
questions or need further information regarding
the unit, please don't hesitate to contact us. Our
service team will gladly be at your disposal.
1 Device Specifications
Device Type: Ideo Examination Unit
Manufacturer: Block Optic Ltd.
Semerteichstr. 60
44141 Dortmund
Germany
Intended

Examination Unit "Ideo"
Block Optic Ltd., Semerteichstr. 60, 44141 Dortmund, Germany, Phone: +49(0) 231 / 10 87 78 5-0, Fax: +49(0) 231 / 17 63 065
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Applications : Ideo is a universal examination unit for integration of
ophthalmologic and optical devices. Depending of its use the
devices can be positioned in front of the test subject. The
examination unit Ideo is used for optometry and
ophthalmology.
Unintended
Applications: Other applications as those described above are prohibited.
Unpredictable hazard can come up during unintended use.
The motor (optional) is not intended for permanent up and
down movements with the vertical adjustment. After
continuous operation of 1.5 minutes it must be cooled down
for at least 8.5 minutes. A continuous operation of the vertical
adjustment for more than 1.5 minutes can lead to a defect of
the vertical adjustment. During routine operation the required
cooling period is achieved automatically.
Scope of supply: Ideo can be delivered with various equipment. The actual
scope of supply is listed in detail in the delivery note.
Safety Remarks : a) Please read the instruction manual carefully and make
yourself acquainted with all functions before you start to
operate the device.
b) Don't change anything at the unit by yourself as this might
impact the safety and leads to the expiry of the warranty.
c) This unit is not intended for use in areas with risk of
explosions.
d) Do not operate the unit if you observe visible damages.
Breakdowns which have impact on the safety need to be
repaired immediately. In this case, please contact an
authorized service technician at Block Optic
e) Only use original accessory parts for the Ideo.
f) If the unit will not be used for a longer period, please turn
off the main switch at the wall connection box. We recommend
to put dust covers on the devices which are mounted on the
unit.
g) Accessories which will be connected with the electric supply
of the examination unit need to be proven to comply with the
appropriate DIN EN or IEC specifications. Furthermore all
configurations have to comply with the requirements of the
system standard DIN EN 60601-1-1 (IEC 601-1-1) and its
modifications. Coupling of non-medical devices (e.g. data
processing devices) to a medical electronically system such
as the examination unit must not lead to a safety degree for
patient, user, and the environment which is beyond DIN EN
60601-1-1 (IEC 601- 1- 1) and its modifications. If the

Examination Unit "Ideo"
Block Optic Ltd., Semerteichstr. 60, 44141 Dortmund, Germany, Phone: +49(0) 231 / 10 87 78 5-0, Fax: +49(0) 231 / 17 63 065
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admissible leakage current is exceeded by the coupling,
protective measures according to the system standard DIN EN
60601-1-1 (IEC 601-1-1) and its modifications need to be
provided. After installation or later modifications the system
must not put any risk to the patient, the user or the
environment.
Liability of
Manufacturer : The device has been manufactured according to the latest
technical development and acknowledged technical safety
directives. Block Optic considers itself responsible for any
impact on safety, reliability and performance of the device only
if:
• Mounting, extensions, readjustments, modifications or
repairs are carried out by authorized persons,
• the electric installation of the concerned room complies
with the requirements of VDE 0100-710 and
• the device is used according to the instruction manual.
Responsibility of
User: The user is responsible for:
• Compliance with standards for prevention of accidents
and the directives for establishment, operation and
application of medical devices (Medical Device
Operating Directive)
• Operation,
• Maintenance,
• Duly and safe condition of the product and
• Storage of the instruction manual and the technical
appendix at the usage site.
Warranty : The General Terms and Conditions of Block Optic are effective
as the basic principle.
Text Accentuation: Important parts of the text in the instruction manual are marked
by accentuations and key words. The following accentuations
are used in the actual instruction manual:
Caution!
Indicates a potentially hazardous situation. Please note
such precaution measures to prevent any damage from
patients or objects.

Examination Unit "Ideo"
Block Optic Ltd., Semerteichstr. 60, 44141 Dortmund, Germany, Phone: +49(0) 231 / 10 87 78 5-0, Fax: +49(0) 231 / 17 63 065
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Important!
Indicates important information. Please read this
information to maintain the high safety and function level
of the device.
Special note!
Indicates information for proper usage. Please read this
information to avoid any misuse.
2 Important information for assembly, use,
maintenance and repair
The examination unit Ideo should only be setted up and mounted by the company
Block Optic Ltd. or by authorized technicians of Block Optic!
Repair and maintenance work may only be carried out by the company Block Optic
Ltd. or by trained service technicians. Repair work practicable by yourself is described
in chapter 7: Maintenance, cleaning, care and disposal.
2.1 Required space and connection requirements
The examination unit Ideo with an instrument swivel-telescopic table that can be driven
into two working positions, can be mounted directly on the wall together with its main
base. The minimum amount of desk-top space required is 1769 mm x 1316 mm, the
size of the swivel table is 450 mm x 1112 mm (see Illustration 8.1).
The column holding the chart projector ends 1965 mm + 10 mm above floor level. To
install the instrument column the height of the room has to be at least 2050 mm, this
must be considered mainly at rooms with slanted walls.
If the backrest of the patient chair shall be allocate without a previous rotation, extra
600 mm of room length must be considered (1316 mm + 600 mm). Through turning
the chair 180° (in an anti-clockwise direction with right-handed units) before the
backrest is inclined, this extra space can be saved. Please make sure that the patient
chair is fixed to allocate it because of tilting danger.
The examination unit with its wall-mounted terminal box unit shall be connected to the
mains and the electrical installation in the surgery (e.g. room lighting, curtain control,
etc.). The mains voltage must be 230 V, 50-60 Hz with a rating of at least 6.3 A
(1500 VA). If other consumer circuits are connected such as room lighting, etc. the
power consumption is, of course, larger.

Examination Unit "Ideo"
Block Optic Ltd., Semerteichstr. 60, 44141 Dortmund, Germany, Phone: +49(0) 231 / 10 87 78 5-0, Fax: +49(0) 231 / 17 63 065
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3 Packaging
The Ideo examination unit can if necessary be supplied packaged in a special
transportation box:
Dimensions (L/W/H): variable, depending on extra
equipment.
Weight: variable, depending on extra equipment, min. 200 kg.
When the packaging boxes are delivered, please check for external damage and
observe the enclosed freight information!
Special note!
Please ensure that you remove all component parts
belonging to the unit!
To set up the examination unit you only need the tools of a service technicians. No
special tools are required.
4 Scope of supply
4.1 System components of the basic equipment
The Ideo examination unit consists of a number of system components that can be
combined in a useful way. The basic design unit (right-hand or left-hand version) for
holding the telescopic table, phoropter rails and instrument column with or without
electromotive height adjustment comprises:
• basic construction of the swivel table with adapter for an optional container;
• swivel table;
• electromotive chair base;
• Container for PLD- or Easy-Electronic;
• electrical equipment:
o Transformer 230 V primary;
o keyboard;
o safety switch-off for upward movement of the electromotive patient chair;
either
o PLD main module, consisting of:
 power control module,
 logic control module;
o PLD wall connection box;
or

Examination Unit "Ideo"
Block Optic Ltd., Semerteichstr. 60, 44141 Dortmund, Germany, Phone: +49(0) 231 / 10 87 78 5-0, Fax: +49(0) 231 / 17 63 065
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o Easy- main module, consisting of:
 Dimmer module (optional),
 power control module;
o Easy wall connection box;
• Telescopic-Swivel table for one or two instruments;
• Headrest bar for adapting various types of headrests;
• Power inlet loop for covered cabling (e.g. 230 V or video cables) to each of the
locations on the telescopic table;
• Installation accessories Block-box (hex driver, screwdriver, fuses, blocking
device for the telescopic table during transportation, electrical plugs for the
table-top and small instruments, manual).
4.2 Accessories (Optional)
Additional to the basic design the unit Ideo can be provided with instruments and
devices as well as electrical and electronic accessories, mechanical spare parts and
wooden fittings.
Following instruments and devices are optional available:
1. Phoropter rail including cover and support lugs, manually driven phoropter arm;
2. Phoropter arm, various versions, including support;
3. Instrument column including adapter fitting with a special support for the Ideo
unit only.
Following electrical and electronic accessories are optional available:
1. Electronic control set for the motor-driven horizontal movement of the top part
of the patient chair;
2. Automatic three- or five-channel room lighting for telescopic table, phoropter rail
and the undulated tray;
3. Continuous lighting controller for all the reading lights through reading-light-
module (PLD);
4. The “Lifto“, an elegant reading light with a large illumination radius;
5. The modern reading light „Tolomeo“;
6. Undulated tray for a hand-held ophthalmologic unit with its own built-in on/off
switch;
7. Undulated tray for a hand-held ophthalmologic unit with micro-switch, control
over readout-potentiometer;

Examination Unit "Ideo"
Block Optic Ltd., Semerteichstr. 60, 44141 Dortmund, Germany, Phone: +49(0) 231 / 10 87 78 5-0, Fax: +49(0) 231 / 17 63 065
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8. Twin charging unit, built into the unit, including support frame and dust cover;
9. Support for indirect/ head-worn Ophthalmoscope;
10. Additional foot switch for raising and lowering the patient chair .
Following mechanical spare parts are optional available:
1. Headrest bar for adapting various types of headrests;
2. Cable tubing support for Slit Lamps ;
3. Adapter for the various reading lamps on the rectangular instrument column;
4. Support for a proximity meter;
5. Support for the twin charging unit;
6. Various types of projector adapters;
7. Tilting device for all block phoropter arms;
8. Various phoropter adapter versions, depending on the type of phoropter used;
9. Instrument column with holding fixture for phoropter arm, chart projector and
reading lamp;
10. Movable patient chair with wireless connection to the examination unit for the
examination of patients in wheelchairs.
Following wooden fittings are optional available:
1. Desk section of the various styles and sizes;
2. Drawers for holding the set of test tubes, suitably fitted under the desk top;
3. Cupboards fitted under the desk in various versions;
4. Container with drawers for holding the set of test tubes and other utensils.
5 Appliance description
5.1 Basic concept
The Ideo examination unit is a refraction and examination unit with a compact swivel
table for one or two table-top instruments. The table´s height can be either manually
or motor-driven; it is factory-set at a height of 860 mm. Later this can be changed to
the possible heights of a 30 mm-raster between 750 mm and 1020 mm. With an

Examination Unit "Ideo"
Block Optic Ltd., Semerteichstr. 60, 44141 Dortmund, Germany, Phone: +49(0) 231 / 10 87 78 5-0, Fax: +49(0) 231 / 17 63 065
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optional electromotive lifting equipment through the keyboard integrated in the
container, it is possible to adjust the table continuously between 820 mm and
1020 mm. This adjustment of height is designed for the examination of wheelchair
patients as well as to regulate the optimal operating position of different practitioners.
It is not intended for permanent up and down movements (see chapter 1: Unintended
Applications).
The swivel-telescopic table can swing round uncomplicated in front of the patient. At
the same time the separate headrest moves into operating position. Through activating
the release button the swivel-telescopic table moves easily between the two working
position of the table-top instruments and just as well swings back into the basic
position. The pivoting will be damped automatically and the table will be locked in the
basic position.
Connection and storage facilities are available for various hand-held instruments. The
hand-held instruments have their place in the built-in charging unit and in the undulated
tray of the small instruments module.
There is the option of fitting the unit with an automatic room lighting system. This works
so that when the telescopic table is moved, when a hand-held instrument is taken from
the undulated tray and/or when the phoropter rail is brought forward by the motor, the
room lighting is reduced to the levels previously set. When the telescopic table is
moved back, the hand-held instrument is replaced and/or the phoropter rail moves
back into place, the room lighting is changed back to previously set levels.
Use of the Block patient chair means that it is also unnecessary to move a patient from
the wheelchair into the patient chair, as it can easily be moved to one side, forwards or
backwards (see manual for patient chair). The patient chair normally used is a Block
patient chair, chairs made by other manufacturers can be attached only on consultation
with the manufacturer.
All electrical functions are controlled via the keypad, placed in an ergonomically
advantageous position. This is where all the operating elements for controlling the
motor drives for the patient chair, telescopic table (PLD), phoropter arm (PLD) and
lifting mechanism for the unit are to be found, as well as the various lighting facilities,
such as the reading lamp, room lighting, fixation lamps (PLD) and Maddox cross (PLD).
Integrated into the keypad are the control rheostat for the lamp brightness of the table-
top instruments (6 and 12 V) and the main switch for the unit. All keyboards are
antibacterial coated.
The examination unit is available as a right-hand or a left-hand unit (definition of
direction: from the practitioner’s point of view to which direction the instrument table
moves forwards, look at illustration 5.1), as well as in various colour combinations or
surface coatings in veneer wood or plastic.

Examination Unit "Ideo"
Block Optic Ltd., Semerteichstr. 60, 44141 Dortmund, Germany, Phone: +49(0) 231 / 10 87 78 5-0, Fax: +49(0) 231 / 17 63 065
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5.2 Phoropter rail with Phoropter arm (optional)
Various phoropter arms can be mounted on the phoropter rail of the Ideo examination
unit (either driven manually or by motor). The phoropter rail is fitted on a precision
guide which makes it possible to move the phoropter arm with the attached phoropter
in front of the patient without great effort. The phoropter arm moves through the manual
operation of the release button into the physiological correct reading position and fulfils
the optimal conditions for a close reading test.
All phoropter arms can be fitted with reading lamps with flexible arms for the optimum
lighting of the sample text for the close reading test if required.
5.3 Storage of small instruments
A special space is provided at the front of the unit for positioning a small instruments
module. It is possible to choose between various possibilities for storage from the
accessories on offer:
1. Undulated tray with micro-switch for one up to two ophthalmological hand-held
instrument, with transformer, controlled via rheostat.
2. Twin charging unit built into the unit including support frame and cover screen.
The charging unit is mounted securely in a special support with a cover on the
front of the unit. For the plug-in power supply unit of the charging unit, a separate
two-pole-and-earth socket outlet is available in the unit.
3. Close testing instruments and indirect/ head-worn ophthalmoscope: Special
hook-shaped supports can be attached and power is supplied via PLD – or
Easy-Electronic.
5.4 Automatic room lighting (optional)
There is the option of fitting the unit with an automatic room lighting system. This works
in this manner: when the telescopic table moves forward, when a hand-held instrument
is taken out of the undulated tray and when the phoropter is being driven forward by
the motor, the room lighting is reduced. When the telescopic table moves back into
place, the hand-held instrument is replaced and the phoropter moves back into place,
the room lighting is adjusted back to previously set levels.
Illustration 5.1: Definition of direction

Examination Unit "Ideo"
Block Optic Ltd., Semerteichstr. 60, 44141 Dortmund, Germany, Phone: +49(0) 231 / 10 87 78 5-0, Fax: +49(0) 231 / 17 63 065
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5.5 Desk extension (optional)
The basic Ideo unit can be connected with a desk. The desk acts as a workplace for
the ophthalmologist and has drawers for storing spectacle cases, measuring
spectacles and other small instruments. Various designs of cabinets which fit under
the desk are available, in order to increase storage possibilities according to need.
Other forms of desk can either be chosen in accordance with the Block price list or be
manufactured according to individual requirements.
5.6 Patient chair (optional)
The examination unit Ideo is best complemented by a Block patient chair. The chairs
are especially developed for ophthalmologists and opticians. It meets the highest
standards in fittings and operational comfort. All features can be seen in the Block chair
prospects.
The electromotive drive mechanism is integrated into the basic corpus of the unit, a
height adjustment of 230 mm is possible. The optional chair top is installed on the
driving motor.
For the examination of wheelchair patient, there is the possibility to use the optional
patient chair on castors which can be moved aside. An interlock and special contacts
provide a solid, wireless junction between the patient chair and the examination unit
(see Illustration 5.2).
5.7 Voltage-Tower (optional)
The Voltage-Tower serves as a power supply for 230V instruments witch will be uesed
in combination with the refraction unit (see illustration 5.3).
It requires a self-contained 230V power socket and comes with a plug suited for
Germany (attention: adapter plugs may be needed and are not a part of the
delivery).
To avoid damages and malfunctions at the refraction unit it strictly forbidden to
connect the Voltage-Tower to one of the unit power sockets.
The Tower is switched on/off at the refraction unit.
The power status is indicated on the green switch, which standard position is “1”.
Illustration 5.2: Movable patient chair for patient in a wheelchair

Examination Unit "Ideo"
Block Optic Ltd., Semerteichstr. 60, 44141 Dortmund, Germany, Phone: +49(0) 231 / 10 87 78 5-0, Fax: +49(0) 231 / 17 63 065
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It is lit when the refraction unit is in use.
5.8 Wall connection box (WAK)
The wall connection box is equipped with a main switch (3-pole), all terminals (mains
input is fused separately) and a 3 m long flexible cable to connect it with the unit. A
longer connection cable can be supplied on request. The mains supply to the unit and
the connection with the electrical consumers in the examination room which are to be
controlled from the unit occur via a wall connection box.
In order to make the equipment ready for operation, the main switch on the wall-
mounted connection box (remains switched on during normal operation) and the main
switch on the unit keypad must be turned on.
Special note!
After switching off the Ideo by the key pad of the control
panel the transformer for devices and the reading light
as well as the power outlets in the support case remain

Examination Unit "Ideo"
Block Optic Ltd., Semerteichstr. 60, 44141 Dortmund, Germany, Phone: +49(0) 231 / 10 87 78 5-0, Fax: +49(0) 231 / 17 63 065
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activated. During prolonged absence the Ideo should
therefore be switched off by the main switch on the wall
connection box.

Examination Unit "Ideo"
Block Optic Ltd., Semerteichstr. 60, 44141 Dortmund, Germany, Phone: +49(0) 231 / 10 87 78 5-0, Fax: +49(0) 231 / 17 63 065
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6 Operation and safety functions
All electrical functions are controlled via the keypad, placed in an ergonomically
advantageous position. This is where all the operating elements for controlling the
motor drives for the patient chair, telescopic table, phoropter arm and lifting mechanism
for the unit are to be found, as well as the various lighting facilities, such as the reading
lamp, room lighting, fixation lamps and Maddox cross. Integrated into the keypad are
the control rheostat for the lamp brightness of the table-top instruments and the main
switch for the unit as well as the lifting mechanism of the table.
External consumers such as the curtain motor, room lighting, external reading lamps
and fixation lamps can be combined with the electronic controls in the unit and are
controlled via the keypad of the unit.
6.1 Keyboard
The keys are sorted by groups e.g. chair, light etc. to improve the control. The icons
on the keys speak for themselves:
 1 rotary potentiometer for controlling the power for extra-low voltage devices
(6/ 12 V),
 2 keys for patient chair (up/down),
 1 key for patient chair automatically down,
 2 keys for electromotive displacement of the patient chair upper part (forwards,
backwards),
 1 key for reading-lamp,
 1 key for dimmer for room lighting with incandescent or halogen lamps,
 1 key for Maddox cross,
 2 keys for curtain (open, close), switch or push-button function possible,
 1 spare key, switch function with PLD, switch/ push-button with Easy,
 2 keys for vario-function (up, down) and
 1 key for unit on/off.
Following keys are not used at the examination unit Ideo but represented on the
keyboard:
 4 keys for electromotive table (1, 2, 3, backwards),

Examination Unit "Ideo"
Block Optic Ltd., Semerteichstr. 60, 44141 Dortmund, Germany, Phone: +49(0) 231 / 10 87 78 5-0, Fax: +49(0) 231 / 17 63 065
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 2 keys for motor-driven phoropter rail (forwards, backwards),
 1 key for Spot.
PLD-keyboard (functions depending on unit and equipment):
Illustration 6.2: keyboard „Night design" (blue keyboard illumination)

Examination Unit "Ideo"
Block Optic Ltd., Semerteichstr. 60, 44141 Dortmund, Germany, Phone: +49(0) 231 / 10 87 78 5-0, Fax: +49(0) 231 / 17 63 065
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6.2 Handling of the swivel-telescopic table
The swivel table can easily rotate into the room between the patient and the practitioner
in a space saving manner. When the working position is reached the table will be
automatically locked and the operating voltage to the first table-top instrument will be
connected. The uncomplicated handling of the release-button situated under the table
- ergonomically in the reaching area of the hand - allows the telescopic movement into
the second working position.
All movements of the table require only minimum use of force. The constructive basic
design concept of the Ideo offer an automatic look in the end position of the table. The
pivoting of the table will also be soften before reaching a position.
6.3 Handling of the motor-driven chair
To change the chair position immediately after using the automatically-down-key of the
keyboard, a double pressing on the key “up” is necessary.
6.4 Setting up the desired room light
For users of the Easy-Electronic it is generally possible to set up the desired light
intensity of the room light. Therefore the particular position of the table is to obtain and
to set up the desired light press subsequently the room light key. After disengaging the
key, the value of the adjusted light will be saved after 3 s and each time the position is
obtained, the desired light will be set up automatically.
For users of the PLD-Electronic you need to open the WAK, the wall connection box.
At the bottom left are four binary switches to set up the desired light intensity by
changing the position of the different binary coded switches (see technical appendix
“Automatic Room Lightning”). When you take out a hand-held instrument of the
undulated tray the adjusted light will automatically be obtained. This adjustment should
be done by a service technicians.
6.5 Safety precautions
When using the telescopic table, ensure that the patient’s hands are resting
comfortably on the armrests of the patient chair, since there is a risk of crushing if they
are near the headrest!
Caution!
Please make sure while using the telescopic table that
the patient´s hands rest comfortable on the armrest of
the patient chair. Crushing hazard!!
To avoid the risk of crushing when the patient chair is being raised, there is a built-in
electromechanical safety switch on the bottom side of the instrument table (see
Illustration 6.3). Mechanical contact of the safety switch will stop immediate the drive
system of the chair and the table through the main control.

Examination Unit "Ideo"
Block Optic Ltd., Semerteichstr. 60, 44141 Dortmund, Germany, Phone: +49(0) 231 / 10 87 78 5-0, Fax: +49(0) 231 / 17 63 065
17
In combination with products of other manufacturers ensure that the safety
requirements are respected. The safety shut down of the hub function must always be
guaranteed.
Special note!
Check the effective operation of the shut down function
at regular intervals.
Please keep in mind that during each height adjustment, chair rotation as well as table
movement the patient is not exposed to hazard. Especially when raising the chair, the
seat displacement and the footrest present a source of danger. Therefore make sure
that the patient´s feet are always positioned on the footrest.
Caution!
Please make sure while adjusting the chair´s height that
the patient´s feed rest comfortable on the footrest of the
patient chair. Crushing hazard!!
If the patient chair is decoupled, please do not tilt the backrest!
Caution!
Tilting danger! If the patient chair is decoupled, please
do not tilt the backrest!
To avoid a collision between the phoropter arm and the headrest, the phoropter arm
with an electromotive control is provided with a safety function. If the phoropter arm is
in reading inclination, neither table nor phoropter arm can be moved. In starting position
a green LED is illuminated to indicate the basic position. In reading inclination the LED
is off (see Illustration 6.4).
Illustratio
n 6.3:
Electromechanical safety

Examination Unit "Ideo"
Block Optic Ltd., Semerteichstr. 60, 44141 Dortmund, Germany, Phone: +49(0) 231 / 10 87 78 5-0, Fax: +49(0) 231 / 17 63 065
18
7 Maintenance, cleaning, care and disposal
For maintenance and care of the installed examination devices/ supply products please
follow the directions of the concerning instruction manual.
Repair work practicable by yourself:
Before exchanging a fuse is the unit must be separated from the power supply,
therefore switch off both main switches (wall connection box and keyboard). Use only
the prescribed fuse types and ratings. For more information, see technical appendix.
Before exchanging a bulb switch off both main switches (wall connection box and
keyboard) and wait for a cool down of the lamp. Use only the original illumination
element.
Maintenance and Safety Inspections (STK):
To ensure the high safety standard and high quality of the examination unit Ideo we
recommend a regular maintenance. Please contact an authorized Block service
technician.
For the examination unit Ideo we keep up to 10 years after the date of purchase spare
parts on stock. After this period maintenance and repair work can be conducted
contingently with original part.
Following maintenance should be conducted half yearly:
• Cleaning of the actation-toothed belt, the phoropter rail and the telescopic-table
rail with silicon-free lubricant (WD40), do not use any abrasive or water!
Following maintenance should be conducted yearly through authorized Block service
technician:
• Inspection of the slipping clutch,
• Inspection of the sliding contact with checking of foreign particle,
Illustration 6.4: left: Phoropter with green LED; right: Phoropter tilted, LED off

Examination Unit "Ideo"
Block Optic Ltd., Semerteichstr. 60, 44141 Dortmund, Germany, Phone: +49(0) 231 / 10 87 78 5-0, Fax: +49(0) 231 / 17 63 065
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• Checking the condition of every external connecting wire (Inspection for
isolation damage),
• Check up of the effective operation of the shut down function,
• General check up of proper function,
Following maintenance must be conducted every 2 years by a specialist :
• STK
Depending on the usage frequency the user should do maintenace
work every ½ year .
Cleaning and greasing of the phoropter and telescop table rail.
Following specifications for the cleanser and grease are required:
silicon and acid free
not resinifying
no usage of abrasive or water
Maintenance and care:
Important!
Turn off both main switches even when cleaning with a
damp cloth. Leave the appliance to dry out completely
before using again.
We recommend cleaning the coated surfaces with a cloth moistened (never dripping
wet). Please do not use any abrasive or aggressive cleaning supplies. Make sure that
no moisture gets in between the keyboard keys. Chair Cleaning: Simply clean with
lukewarm water and a micro-fibre rag. Please do not use solvents, chlorides,
abrasives, chemical cleaning agents or wax polishes. Please remove ink stains
immediately. Do not use care agents containing oil or fat.
It is advisable to protect the unit against dust with a protective hood at the end of each
working day, simply because open measuring and examining instruments are
inherently sensitive to dust.
Cleaning and maintenace of the Block patient chairs
It is only allowed to clean the patient chair with the shared letherette cleanser from the
company Block.
Agressive cleanser or solvent-containing disinfectants destroy the surface of the
letherette.
The special cleanser is included in the first delivery of the patient chair.
To reorder, use the Block part no.: 00 40 0001.
For cleaning chairs, which are not produced by Block, ask your supplier for a proper
cleanser.
Important !
It is only allowed to clean the patient chair with the
shared cleanser from the company Block.