Eli Ezer ESL-7800 Operation Manual

Preface

Thank you for purchasing our ESL-7800 slit lamp. The slit lamp will have
another capability of photography, if you purchase the appliance with the
photography accessories. At the same time, in order to meet the needs of the customs,
we provide sorts of accessories, which can be used widely. Please read this manual
carefully for the sake of your best use.

General Requirements for Safety

Please read carefully about following precautions to avoid unexpected personal
injury as well as the product being damaged and other possible dangers.

Precautions

1.

Do not use this instrument in the environment prone to fire and blast or
where there is much dust and with high temperature. Use it in the room and
simultaneously be careful to keep it clean and dry.

2.

Check that all the wires are correctly and firmly connected before using.
Ensure that the instrument is well grounded.

3.

Please pay attention to all the ratings of the electrical connecting terminal.

4.

Only use fuse according to the specifications and rated values stipulated by
our product.

5.

Use the power cable supplied with this instrument.

6.

Don’t touch the surface of the lens and prism with hand or hard objects.

7.

Turn off the main power first before replacing the main bulb, flash lamp and
fuse.

8.

To prevent the instrument from falling down to floor, it should be placed on
the floor where the inclination angle is less than 10°.

9.

Turn off the power and cover the instrument with dust-prove hood when it is
not in use.

10.

In case there is any trouble, please first refer to the trouble-shooting guide. If
it still can’t work, please contact with the authorized distributor or our
Repair Department.

 THE SAFETY MARKS USED IN THIS INSTRUMENT

TYPE B ATTENTION PLEASE TERMINAL OF
REFER TO THIS MANUAL THE PROTECTIVE GROUNDING

Fig.1

Contents

1 Nomenclature...........................................................................................................1

2 Assembly ..................................................................................................................3

2.1 Components.....................................................................................................3

2.2 Assembly procedure........................................................................................5

2.3 Checking procedure after assembling............................................................9

3 Operation procedures...........................................................................................10

3.1 Diopter compensation and Pupil Distance adjustment...................................10

3.2 Patient position and fixation target ..............................................................11

3.3 Base operation..............................................................................................11

3.4 Operation illumination unit..........................................................................12

3.5 Fundus observation with Hruby lens (optional)...........................................14

4 Maintenance.........................................................................................................15

4.1 Replacing the illumination bulb...................................................................15

4.2 Replacing the reflecting mirror....................................................................15

4.3 Replacing the fuse........................................................................................16

4.4 Replacing the chin-rest paper

.......................................................................16

4.5 Adjusting the tightness of the slit width knob..............................................16

4.6 Adjusting the inclination of the illumination part........................................16

4.7 Cleaning ........................................................................................................17

4.8 Protecting .....................................................................................................17

4.9 Consumables................................................................................................19

5 Trouble shooting guide .........................................................................................20

6 Responsibility.........................................................................................................21

7 Transportation and storage..................................................................................21

8 Optional accessories (purchase in addition) .......................................................22

8.1 Applanation tonometer...................................................................................19

9 Specifications .........................................................................................................22

1 Nomenclature

1 Joystick

Incline joystick to move the instrument slightly on the horizontal surface and
rotate it to adjust the elevation of the microscope.

2 Base Locking Screw

The base will be locked when fastening this screw.

3 Rail Cover

Protect the rail surface.

4 Base

Support the microscope and the illumination arms with the joystick controlling its
movement.

5 Work Table
6 Accessory Drawer

Store the focusing test rod and other accessories.

7 Brightness Control Switch

The brightness can be continuous adjusted. Avoid working continuously at high
setting, as the service life of the bulb will be shortened.

8 Main Power Switch
9 Pilot Lamp
10 Microscope Arm Locking Knob

Lock the rotational movement of the microscope arm.

11 Angle Mark Ring

Marks on the angle mark ring of the illumination arm, which relates to the long
mark of the microscope arm, represent the two arms’
ring relates to the short mark at one side of the operator, the right eyepiece may
be

blocked,

and the side of the patient the left eyepiece.

12 Chin-rest Elevation Adjustment Knob

Rotate the knob to adjust the elevation of the chin-rest

13 Location Roller

When it is in the

middle,

it stands for included angle of 0o between the microscope

arm and the illumination arm. And the right or left side the included angle of 10o.

14 Microscope and Illumination Arm Couple Bolt

Fasten this bolt and the illumination arm and the microscope arm could rotate
together

in couple state

. Loosen it and the illumination arm then can rotate

separately.

15 Hruby Lens Guide Plate

Also used as an assembly plate for the applanation tonometer.

16 Breath Shield
17 Chin-rest
18 Magnification Select Dial

Five different magnifications are provided.

19 Prism Box

Separate the prism box to adjust the interpupillar distance.

20 12.5X Eyepiece

Before using the slit lamp, adjust the proper diopter for each eyepiece to obtain a

angle.

When the ‘0’ on the

1

definite image.

21 Microscope Fixation Screw
22 Accessories Mount

Accept the model R-900 Goldmann applanation tonometer as well as other
accessories

23 Horizontal Mark

When the horizontal center of the patient’s eye is in line with this mark, the
elevation of the microscope controlled by joystick is also in its center position.

24 Forehead Belt
25 Diffusion Lens

Used for observing and photographing at a low magnification, and for enlarging

the illumination field.

26 Lamp Cap
27 Aperture Slit Height and Display Window
28 Filter Selection Lever

There are four filters for selection

29 Aperture and Slit Height Control Knob

Rotate this knob to adjust the spot and the slit height. Swing the knob
horizontally to revolve the slit.

30 Fixation target

Two kinds of fixation targets are available. One is for diopter adjustment to help
the patient to see the target clearly while the other is an illuminated fixed spot.

31 Reflecting Mirror

Both long and short reflecting mirrors are provided. The long mirror is routinely
used for most examination procedures. The short mirror is used when the long
mirror interferes with the observation pathway, such as during funduscopy.

32 Hruby Lens

Used for observation of fundus and the posterior segment of vitreous body.

33 Hruby Lens Holder
34 Centering Knob

Loosening the knob allows the illumination light to be moved from the center of
the vision field for indirect retro-illumination. Fastening the knob brings the
illumination light back to the center.

35 Slit Width Control Knob

The slit width is continuously adjustable within the range from 0 to 9mm. The
marks on the left knob stand for the approximate value of the width.

36 Illumination Inclination Lever

Four 5o inclination stops are available－up to 20o.

37 Brightness Control Connector

2

2 Assembly

This section of the manual describes how to assemble
parts should be taken out with great care from the packing case before
assembling.

2.1 Components

ESL-7800

slit lamp. All

Fig2-1

3

Fig.2-2

Name Quantity

A Illumination Part 1
B Converging Binocular Tubes and base part 1
C Head-rest Part 1
D Breath Shield 1
E Worktable with Power Box 1
F Rail Cover 2
G Input Power Cable 1
H Hruby Lens 1*
I Hruby Lens Guide Plate 1*
J Spare Illumination Bulb 1
K Chin-rest Paper 1
L Focusing Test Rod 1
M Protection Cap 2
N Dust-proof Cover 1
O Fixation Target 1
P Spare Long Reflecting Mirror 1
Q Spare Short Reflecting Mirror 1
R Brush 1
S Spare Fuse 2
T Cross Screw Driver with Wood Handle 1
U Watch Screw Driver 1
V Spanner 1
W

Hexagonal wrench 1

(*Optionally available in some region.)

4