bon CP-50 User manual

Instruction manual
GA bon CP-50 Rev 1.0 E 271205
PO Box 32 26
23581 Lübeck
Stellmacherstraße 14
D-23556 Lübeck
Phone: [phone]
Fax: [phone]
E-Mail: [email protected]
Internet: www.bon.de
Sparkasse zu Lübeck
(Sort code 230 501 01) Acc.No. 1 014 885
Swift / BIC: HSHN DE H1 SPL
IBAN: DE 2305 0101 0001 0148 85
Commerzbank Lübeck
(Sort code 230 400 22) Acc.No. 0 107 755
Postbank Hamburg
(Sort code 200 100 20) Acc.No. 409 22-204
bon Optic Vertriebsgesellschaft mbH – managing director: H. Jochen Kaber – HR Lübeck, HRB 3475 – VAT No. 161662634
bon CP-50 chart projector

Contents
GA bon CP-50 Rev 1.0 E 271205 2/21
1Introduction .....................................................................................................3
2Important information.....................................................................................4
2.1 System information............................................................................................. 4
2.2 Application and classification ............................................................................. 4
2.2.1 Application (appropriate use).............................................................................................4
2.2.2 Classification.....................................................................................................................4
2.3 Liability ............................................................................................................... 4
2.4 Scope of delivery................................................................................................ 5
3Description of the device................................................................................6
4Safety instructions..........................................................................................7
5Setting up and operating................................................................................8
5.1 Setting up........................................................................................................... 8
5.1.1 Direct projection of the projection screen supplied............................................................8
5.1.2 Projection via a mirror system...........................................................................................9
5.2 Operating.......................................................................................................... 10
6Operating.......................................................................................................11
6.1 Remote control................................................................................................. 11
6.2 Special features................................................................................................ 12
6.3 Filters................................................................................................................ 13
6.3.1 Red/green filters..............................................................................................................13
6.3.2 Polarisation filters............................................................................................................13
6.4 Masks............................................................................................................... 13
6.5 Programming test series .................................................................................. 14
6.5.1 Programming a test series ..............................................................................................14
6.5.2 Calling up and ending a test series .................................................................................14
6.5.3 Changing a test series.....................................................................................................14
6.6 Using several projectors in a room................................................................... 15
7Care and maintenance..................................................................................16
7.1 Care.................................................................................................................. 16
7.2 Maintenance..................................................................................................... 16
7.3 Product safety controls..................................................................................... 16
7.4 Repairs you can carry out yourself................................................................... 17
7.4.1 Replacing a fuse..............................................................................................................17
7.4.2 Replacing light bulbs.......................................................................................................18
7.5 Malfunctions..................................................................................................... 18
8Guarantee and disposal................................................................................19
9Technical data ...............................................................................................20
Appendix: EC-Declaration of Conformity

1 Introduction bon CP-50
GA bon CP-50 Rev 1.0 E 271205 3/21
1 Introduction
Dear Customer
Thank you for purchasing our bon CP-50 chart projector. Please read the operating
instructions carefully before using the projector. Keep these instruction manual safe for future
use. Please observe the safety instructions.
If you have any further questions, please contact our customer helpline.
Meaning of the symbols in the operating instructions
Caution! Please observe safety instructions with this symbol to prevent
personal danger or damage to property.
Important! Indicates particularly important information to maintain the
function of the device/system or to extend its life.
Note! Indicates information for correct use so that errors may be avoided.
This publication may not be copied or transferred without prior agreement from bon Optic.
bon Optic reserves the right to make changes in the interest of technical development. These operating
instructions are not subject to updating.

2 Important information bon CP-50
GA bon CP-50 Rev 1.0 E 271205 4/21
2 Important information
2.1 System information
Name of device : bon CP-50
Manufacturer : bon
Optic Vertriebsgesellschaft mbH
Stellmacherstraße 14
D- 23556 Lübeck
2.2 Application and classification
2.2.1 Application (appropriate use)
The chart projector CP-50 is designed to project various test charts to determine the visual
acuities of the human eye.
2.2.2 Classification
The CP-50 chart projector is a non-invasive active class 1 medical device in accordance with
Council Directive 93/42/EEC (MDD).
2.3 Liability
The chart projector is manufactured according to the current technical status and the
recognised safety regulations and is tested in accordance with strict quality criteria.
bon Optic only accepts liability for the safety, reliability and performance of the device if
any changes or repairs have been carried out by a person authorised by bon Optic to
do so.
the power supply to which the device is connected corresponds to the national
legislation.
the device is operated in accordance with these operating instructions.
the operator complies to the Ordinance on the Operation of Medical Devices
(MPBetreibV).
If the system is assembled, changed or repaired by an unauthorised person, if it is improperly
maintained or not used as described in 2.2.1, the manufacturer is no longer liable.

2 Important information bon CP-50
GA bon CP-50 Rev 1.0 E 271205 5/21
2.4 Scope of delivery
1 x CP-50 chart projector
1 x Instruction manual
1 x mains cable
1 x infrared remote control unit
4 x LR 03 AAA batteries
1 x projection board
1 x red/green glasses
1 x pole glasses
1 x dust cover
2 x T 250mA micro-fuse
1 x tilt arm
1 x spare bulb
1 x Allen key to open the casing
1 x Allen key to secure the tilt arm
Optional accessories
To mount/set up the device
- table foot
- wall fixings
For projection
- Surface mirror
- Hinged joints

3 Description of the device bon CP-50
GA bon CP-50 Rev 1.0 E 271205 6/21
3 Description of the device
The CP-50 chart projector has a total of 37 test fields to determine the visual acuities of the
human eye. The individual charts are very clearly reproduced thanks to the special design of
the optotypes and the high resolution lens system. All tests are conveniently controlled using
the infrared remote control, with a switching speed of 0.03 seconds. The individual visual
acuities can be represented selectively using masks. The projector enables you to program
two separate test series.
The projector has 5 sets of charts:
Landolt rings in acuity levels 0.125 to 2.0
Numbers in acuity levels 0.1 to 1.25
Illiterate Es in acuity levels 0.16 to 1.6
Letters in acuity levels 0.05 to 1.6
Illustration for children in acuity levels 0.2 to 1.0
Special features:
Asticmatic fan test
Red/green test
Bichrome balance test
Worth test
Schober test
Refraction balance test
Heterophoria test
Heterophoria test with fix point
Aniseikonia test (vertical)
Aniseikonia test (horizontal)
Stereo test
Grid cross test
Night myopia test
Cross cylinder test
Dissociation test
Filters:
Red/green filters
Polarisation filters

4 Safety instructions bon CP-50
GA bon CP-50 Rev 1.0 E 271205 7/21
4 Safety instructions
Please observe the statutory accident prevention regulations and the following safety
instructions!
Setting up and installation:
The chart projector must not be operated or set up in damp conditions
Avoid water splashing or spraying onto device
Connect the device to a properly installed mains socket or power supply, e.g. on a
testing unit (230V ∼).
Operating:
The chart projector may only be operated by suitably trained staff.
Do not expose to extreme temperatures. The recommended temperature range is
between +10° C and +40° C.
The chart projector is not designed to be operated in areas where there is a risk of
explosion.
Do not place any objects on the ventilation vents on the casing. This causes the
projector to heat up and can destroy it.
Do not insert any objects on the ventilation vents on the casing.
Do not look directly into the projection lens, as this may damage the eyes.
Other information:
To unplug - do not pull the cable; pull the plug itself.
Ensure that the cable is not damaged (e.g. sharp edges or heat).
Disconnect from power supply prior to carrying out repairs, servicing or maintenance
work.

5 Setting up and operating bon CP-50
GA bon CP-50 Rev 1.0 E 271205 8/21
5 Setting up and operating
5.1 Setting up
Depending on the accessories, the chart projector can be mounted on a stand, wall mounted
or set up on a testing unit column.
5.1.1 Direct projection of the projection screen supplied
Note
1. The patients’ eyes and the projection screen must be at the same height to ensure
that the chart is always the right size for the patient and is always at the correct angle.
2. The installed projector must always be placed to the side of the patient and usually
differs in height. Adjust the projection screen according to the angle and to ensure
maximum reflection of the projector light.
3. Ensure that the distance between the patients’ eyes and the projection screen
(projection distance) is at least 4 m. 5 to 6 m distance is standard
4. Ensure that the patient is looking straight through the testing glasses and not at an
angle, e.g. a phoropter in the centre of the projection screen.
5. If using other projection screens ensure that the light density of the testing field is 80
to 320 cd/m², as stipulated in ISO EN 8596.
Figure 5-1: Direct projection (top view)
Pro
j
ector
Pro
j
ection screen
Patient’s e
y
e
Pro
j
ection distance

5 Setting up and operating bon CP-50
GA bon CP-50 Rev 1.0 E 271205 9/21
5.1.2 Projection via a mirror system
If it is not feasible to observe the minimum distance of 4 m, projection can be achieved using
a system of mirrors (not supplied). Two surface mirrors with angle hinges are required.
Please observe the information in 5.1.1
To achieve maximum reflection, to set up the surface mirrors (A and C) place a smaller plane
mirror on the projection screen (B), taking care not to damage the projection screen.
Projection distance: a + b = S1 + S2 = S3 + S4
Figure 5-2: Indirect projection (top view)
S1
S2
S3
S4

5 Setting up and operating bon CP-50
GA bon CP-50 Rev 1.0 E 271205 10/21
5.2 Operating
Insert the supplied batteries into the battery compartment in the remote control.
Use the power switch (2) to switch the projector on and off. The chart projector is now
operational. Aim the remote control towards the chart projector and press any key. The
projector lamp is activated and the corresponding sight test is shown on the projection
screen.
Focussing
Turn the thumb wheel on the base of the casing (4) to focus the projected image.
Figure 5-3: Chart projector front view Figure 5-4: Chart projector back view
Press the [OFF] switch on the remote control to switch off the projection lamp. The lamp
switches off automatically if no key is pressed for 5 minutes (sleep mode).
(1) Mains connection/
fuses
(2) Mains switch
(3) Projection lens
(4) Thumb wheel
for focus
(5) Infrared receiver