ViewLight ACP-900 User manual

Table of Contents
1. Introduction........................................................................ 1
2. Package Contents.............................................................. 1
3. Classifications.................................................................... 2
4. Designated Symbols .......................................................... 3
5. Safety Instructions ............................................................. 4
6. Configurations.................................................................... 6
7. Installation ......................................................................... 9
8. Focusing.......................................................................... 10
9. Operating Instructions ...................................................... 11
10. Charts Description.......................................................... 12
11. Maintenance .................................................................. 16
12. Basic Trouble Shooting .................................................. 17
13. Transportation................................................................ 17
14. Technical Specifications.................................................. 18
15. Service Information ........................................................ 19

-1-
1. Introduction
Thank you for your purchase of the UNICOS ACP-900 Auto Chart Projector. In the
area of subjective refraction, the UNICOS ACP-900 is best used for measuring visual
acuity. There are 40 different charts including red/green and polarized filters for the
eye optometry. It is fully recommended that you carefully read, understand and follow
the steps in this manual in order to ensure safe operation, optimum performance and
a longer service life from your new instrument. Please retain this manual for future
reference.
2. Package Contents
ACP-900 and accessories were carefully checked and packed prior to the shipment.
However, please check condition and contents upon delivery. In addition to UNICOS
ACP-900, this shipment includes:
Operation
Manual
: 1EA
Metal Screen : 1EA
Fuse : 2EA Battery
AA-sized
: 2EA
Allen Wrenches
: 1EA
Power Cable : 1EA
Dust Cover : 1EA

-2-
3. Classifications
[ Classification under the provision of 93/42/EEC(MDD)] ClassⅠ
ACP-900 is classified into ClassⅠsystem.
[Protection method against electric shock] ClassⅠ
ACP-900 is Classified into ClassⅠinstrument.
ClassⅠinstrument in which protection against electric shock does not rely
on basic insulation only, but which includes an additional safety precaution
with the provision of the connection of the instrument to the protective
earth conductor in fixed wiring of the installation in such a way that any
accessible conductive parts cannot become live in the event of a failure
of the basic insulation.
[Degree of protection against ingress of liquids] IPX0
ACP-900 is the ordinary instrument (enclosed instrument without
protection against ingress of liquids). Be careful not to splash water
on the instrument.
[Degree of protection against flammability]
ACP-900 is classified as an equipment not suitable to be used in a
Potentially flammable anesthetic mixture with air or with oxygen
or nitrous oxide.
Do not use near flammable materials.
[Mode of operation]
Continuous operation

-3-
4. Safety Symbols
Symbol Description
This symbol indicates a protective earth
This symbol indicates that important operation, caution, warning and
maintenance Instructions are included in this User’s Guide.
This symbol on the main switch indicates that the power is OFF.
This symbol on the main switch indicates that the power is ON.
Instruction for user manual
Operating instructions
Manufacturer
Date of Manufacturer
Authorized Representative in the European community
This symbol indicates a fuse.
Do not throw away the waste to inappropriate place
For EU Countries
The following mark, the name & address of the EU Representative shows compliance
of the instrument with Directive 93/42/EEC.
EU Representative:
Ellegi Medical Optics s.r.l.
Via Pisciarelli, 79 – 80078
Pozzuoli (NA) ITALY
TEL:[phone]
Partita I.V.A. 05354730631

-4-
5. General Safety Information
At Operation
- To avoid risk of electric shock, this equipment must only be
connected to a supply mains with protective earth.
- Never disassemble or touch the inside of the instrument.
“No modification of this equipment is allowed”
“Do not modify this equipment without authorization of the
manufacturer”
“If this equipment is modified, appropriate inspection and testing
must be conducted to ensure continued safe use of equipment”
This may result in an electric shock or instrument malfunction.
-Never yank the power cord to disconnect from wall outlet but hold
the plug while disconnecting.
-This can weaken the metal core of the cord and may result in a
short circuit or an electric shock.
- Temperature : +10℃~ +40℃
- Humidity : 30% ~ 90% RH
- Atmospheric pressure range : 700 hPa ~ 1060 hPa
At Storage
- Do not store the instrument in a place where it may get wet or
where poisonous gas or liquid is stored.
- Avoid storing the instrument in an area with excessive heat,
humidity, or dust.
Recommended ranges:
- Temperature : -10℃~ +70℃
- Humidity : 10% ~ 95% RH
- Atmospheric pressure range : 500 hPa ~ 1060 hPa
At Installation
- Do not install the instrument near water.
If water gets into the internal structure, there is the possibility of
electrical Shock or instrument malfunction.
- Install the instrument in a stable and level place where vibration or
shock does not occur.

-5-
-The instrument may not perform observation correctly or may
malfunction. Also, if the instrument is tripped over because of any
accidental shock, it may result in possible injury.
After Use
- If the instrument is not be used for a long time, disconnect the
power cord from the wall outlet. Otherwise, it may cause a tire.
- Remove batteries from the battery case of the remote controller
when the remote controller will not be used for a long time.
At Disposal
- Follow local governing ordinances and recycling plans regarding
disposal or recycling of device components.
- Check the specified disposing method for the specific waste in
advance, especially when disposing the batteries used in the
remote controller.
- When disposing packing materials, sort them by the materials and
follow local governing ordinances and recycling plans.

-6-
6. Configurations
[Fig.1 Front View]
[Fig.2 Bottom View]
1. Projection lens / Focusing wheel
2. Receiving window
3. Table stand
4. Pilot Lamp
3
2
1
4

-7-
[Fig.3 Rear View]
5. Power On/Off Switch
6. AC Power Inlet
7. Fuse Holder
8. RS-232 Port
7
5 8
6

-8-
[Fig.4 Remote control View]
9. Inflated ray transmitter
10. Letters chart
11. Number chart
12. Snellen chart
13. Program
14. Lamp ON/OFF
15. Vertical, horizontal line, single Letter Masking
16. Children chart
17. Landolt chart
18. Function chart
19. Red/Green Test
20. Direction
16
9
10
11
12
17
13
14
15
19
18
20

-9-
7. Installation
The ACP-900 should be installed according to the following procedures:
1. If using a wall mount, it is best to locate a wall stud to support the weight of
instrument.
2. Determine the refracting distance (form the patient’s eye to the screen) and
install the projection screen.
3. Position the instrument at the same distance from the screen to the patient
within the range between 2m and 7m. To obtain longer refracting distances in
small rooms, a mirror or systems of mirrors can be used. In this case, a high
quality front surface mirror is required.

-10-
4. Check the three-dimensional alignment of the system. The instrument is
optimized when the projection screen is angled to direct light to the patient’s
head. Place a mirror on the screen. The light should project where the
patient’s head would be.
8. Focusing
To obtain the correct focus:
1. Measure the distance from the patient to the screen (refracting distance).
2. Turn the Auto Chart Projector on, and using the remote control, project the 0.05
“K” onto the screen.
3. If using a wall mount, it is best to locate a wall stud to support the weight of
instrument.
4. Adjust the position of the instrument forward or backward for sizing.
5. Adjust for sharpness and clarity by turning the focusing wheel left or right as
needed.

-11-
9. Operating Instructions
1. Turn on the power switch of the instrument.
The projection lamp lights and the chart for 0.05 vision shall be viewed in 3
seconds.
2. Changing the chart
Press the appropriate chart button on the remote controller.
The charts have 31 selections.
3. Isolating the visual acuity chart
■ To use Vertical line masking:
Press
☞To move the position right or left
Press or
☞To move the position up or down
Press or
■ To use Horizontal line masking:
Press
☞To move the position right or left
Press or
☞To move the position up or down
Press or
■ To use Single letter masking:
Press
☞To move the position right or left
Press or
☞To move the position up or down
Press or
■ To use Red/Green filter:
Press
■ To release masking and filter:
Press any chart button

-12-
10. Charts Description
A-TYPE

-13-
B-TYPE
Feet

-14-
C-TYPE
Meter

-15-
D-TYPE
Russia

-16-
11. Maintenance
Risk of electric shock. Always disconnect the power cord from the wall and
the instrument prior to performing any of the following procedures.
Do not touch the projector with wet hands.
■ Maintenance
There is no periodic or routine user maintenance required.
■ Cleaning
There are no cleaning requirements other than regular office housekeeping, such
as dusting.
☞Cleaning the main body
< Projection Lens >
1) Blow dusts with a blower brush.
2) If it is not clean enough, clean the lens surface with clean cotton.
< Cover and Screen >
1) Wipe with a dry and soft cloth.
2) If for some reason the instrument becomes soiled, wipe it with the damp
lint-free cloth and mild detergent. Then, wipe off with a dry cloth to finish.
■ Dis-assembling the upper case
1) Turn off the power and pull out the power cord.
2) Unfasten the screw in counterclockwise at the back side of case
3) Disassemble the Upper Case by lifting it.
4) In case of reassembling, place the Upper case on the main body and adjust t
he front position. Then, fasten the screw in clockwise.
■ Replacement of Fuses
1) Turn off the power switch and disconnect the power cord.
2) Push and turn the fuse holder a quarter counterclockwise with your finger
and remove it.
3) Pull out the fuse from the fuse holder and check the condition.

-17-
4) Replace the fuse with the provided spare or equivalent as specified below.
5)
Simply return it with the fuse holder to the socket. Push and turn it a
quarter clockwise to lock.
12. Basic Trouble Shooting
Note : Risk of electric shock. Always disconnect the power cord from the
wall and the instrument prior to performing any of the following procedures.
Do not touch the projector with wet hands.
■ If the instrument does not function at all:
1) Check the facility power source. (Circuit Breakers)
2) Check the electrical connections. (Power Cord)
3) Check the main fuse located on the rear of the unit.
■ If the projector lamp does not light(Ask the manufacturer or service person for help):
1) Check the main On/Off Switch.
2) Replace the lamp with the spare lamp.
The lamp may be HOT! Do not touch the Lamp directly and allow the
sufficient amount of time to cool down the heat.
■ If the projector turns on but does not function:
1) Check the batteries in the remote control.
13. Transportation
■ Make sure the instrument is disconnected from the power source.
■ If the instrument was installed on a custom mount, please remove the unit from the
mount.
■ Pack the instrument in a sturdy carton with suitable packing materials.
■ After packing, do not hurl and impact cause of breakable goods.
- Do not use this machine near by other machines or electric bulb (ex. Halogen lamp),
it will improperly operate on the effect of electronic waves.
VOLTAGE FUSE
100V ~ 240V 1A 250V ; T1AL