Page 1
USER MANUAL
TYPE：GR-54
Page 2
Version:1.0 GR SLIT LAMP USER MANUAL
Gilras LLC
2
Thank you for purchasing our slit lamp microscope.！
The specification of this slit lamp microscope.
Microscope：
Type: Galilean-Type
Magnification change: Five Position revolving Drum
Eyepieces 12.5X
Angle between eyepieces: 13º
Total magnification Ratio: 6X, 10X, 16X, 25X, 40X
Pupillary adjustment: 52mm～78mm
Diopter adjustment: 6D
Field of view: 40X (5.5mm), 25X (8.5mm), 16X (13.5mm), 10X (22mm),
6X (34.7mm)
Slit Illumination:
Slit width: Continuously variable from 0 to 14mm （at
14mm,slit becomes a circle ）
Slit length: Continuously variable from 1mm to 14mm
Aperture diameters: 14mm，10mm，5mm，3mm2mm，1mm，
0.2mm
Slit angle: 0-180
Slit inclination 4 step: 5、10、15、20
Filters: thermal safety、UV、Red-free、Cobalt Blue
Lamp: 6V/20W Halogen Lamp
Base
Longitudinal movement: 90mm
Lateral movement: 100mm
Fine Base movement: 15mm
Vertical movement: 30mm
Chin-Rest
Vertical movement 80mm
Fixation Target Red LED
Power:
Input voltage: 220V/110V～10％
Input frequency: 50Hz/60Hz
Power Consumption: 30VA（max）
Output voltage:
Page 3
Version:1.0 GR SLIT LAMP USER MANUAL
Gilras LLC
3
Light: 6V
Fixation: 3V
Dimension & Weight:
Dimension 740mm 450mm x 500mm
Gross weight: 25Kg
Net weight: 24Kg
Working environment
Temperature: +5℃～+40℃
Relative humidity: ≤80%
Air pressure: 800hpa～1060hpa
Storing environment
Temperature: -40℃～+55℃
Relative humidity: ≤93%
Air pressure: 700hpa～1060hpa
Transporting environment
Temperature: -40℃～+55℃
Relative humidity: ≤93%
Air pressure: 700hpa～1060hpa
Page 4
Version:1.0 GR SLIT LAMP USER MANUAL
Gilras LLC
4
General Requirements for Safety
Please read carefully the following precautions to avoid unexpected personal injury as well as
the product being damaged and other possible dangers.
Precautions
1. In case there is any trouble, please first refer to the trouble-shooting guide. If it still can’t work,
please contact the authorized distributor or our Repair Department.
2. 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 room and simultaneously be careful to keep it clean and dry.
3. Check that all the wires are correctly and firmly connected before using. Ensure that the
instrument is well grounded.
4. Please pay attention to all the ratings of the electrical connecting terminal.
5. Turn off the main power first before replacing the main bulb, flash lamp and fuse.
6. When replacing the power cable, please use the power cable in accordance with the notes in the
instruction manual.
7. Don’t touch the surface of the lens and prism with hand or hard objects.
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. Read carefully the safety and other signals on this machine in order to use the product safely.
Page 5
Version:1.0 GR SLIT LAMP USER MANUAL
Gilras LLC
5
THE SAFETY MARKS, PICTURES USED IN THIS INSTRUMENT
No.
mark
Description
1
TYPE B
2
DATE
3
Class I
The slit lamp is type I medical using equipment
4
Type B
English form of B type
5
WEEE mark Please deal with the waste disposal
produced by the machine following relevant laws
and regulations.
6
Part Number
7
Serial Number
8
ON
9
OFF
10
Output
At the back of power supply box ,indicate outlet of
the power
11
Input
At the back of power supply box ,indicate input of
the power
12
Fuse 110V:2A 125V
220V:1A 250V
Rated value and current value
13
Power
At the front of power supply box, use with on and
off
14
Voltage selector
Change input voltage to adjust the equipment to
work under appropriate voltage
15
THE MARKS OF LIGHT
Page 6
Version:1.0 GR SLIT LAMP USER MANUAL
Gilras LLC
6
Contents
1 Nomenclature _______________________________________________ 7
2 Assembly __________________________________________________ 10
2.1 Check List ________________________________________________________ 10
2.2 Assembly procedure ________________________________________________ 11
2.3 Checking procedure after assembling __________________________________ 13
3 Operation procedures _______________________________________ 14
3.1 Diopter compensation and Pupil Distance adjustment ____________________ 14
3.2 Patient position and use of fixation target ______________________________ 15
3.3 Base operation _____________________________________________________ 15
3.4 Operation of illumination unit ________________________________________ 15
3.5 Operation notes ____________________________________________________ 17
4 Maintenance _______________________________________________ 17
4.1 Cleaning and maintenance ___________________________________________ 17
4.1.1 Cleaning way ______________________________________________________ 17
4.2 Protecting_________________________________________________________ 18
4.3 Adjusting the tightness of the slit width knob ___________________________ 18
4.4 Adjusting the inclination of the illumination part ________________________ 18
4.5 Replacing the illumination bulb ______________________________________ 18
4.6 Replacing the fuse ______________________________________________________ 19
4.7 Replacing the chin-rest paper ____________________________________________ 20
4.8 Consumables __________________________________________________________ 20
5. Trouble shooting guide _________________________________________ 21
Appendix A ____________________________________________________ 22
Appendix B ____________________________________________________ 22
Page 7
Version:1.0 GR SLIT LAMP USER MANUAL
Gilras LLC
7
1 Nomenclature
Page 8
Version:1.0 GR SLIT LAMP USER MANUAL
Gilras LLC
8
1. Work Table
2. Joystick
Incline joystick to move the instrument slightly on the horizontal surface and rotate it to adjust
the elevation of the microscope.
3. Brightness Control Switch
The brightness can be adjusted continuously. Avoid working continuously at high setting, as
the service life of the bulb will be shortened.
4. Microscope Arm Locking Knob
Lock the rotational movement of the microscopes arm.
5. Illumination Arm Locking Knob
Lock the rotational movement of the illumination arm.
6. The indicate of relative angle between the microscope and illumination unit
Mark on the angle mark ring of the illumination arm, which relates to the long mark of the
microscope arm, represent the two arms’ angle when the”0” on the 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.
7. The mark of microscope arm
Together with (6) to indicate the angle between the microscope and illumination unit
8. 12.5X Eyepieces
9. Prism Box
Separate the prism box to adjust the inter papillary distance until it fit for checking
10. The Control Plat of Slit
11. Slit Height Control Knob
12. Aperture Slit Height and Display Window
It will display the diameter of the slit and the aperture.
13. The Fixation Knob of Lamp Cap
After fixing the knob, the lamp cap will not move.
14. Lamp Cap
With the function of protecting and insulating, its normal working temperature is around
51℃.
15. The plug of Lamp cap
It is connected with the power of the light unit.
16. Fixation target
Make the patient stare at it, it is convenient for checking
Rotate this knob to adjust the spot and the slit height. Swing the knob horizontally to revolve
the slit.
17. Filter Selection Lever and display mark
The lever can choose different filters.
18. Forehead Belt
To fix the patient’s head on an appropriate position
Page 9
Version:1.0 GR SLIT LAMP USER MANUAL
Gilras LLC
9
19. Focus test rod
20. Magnification Select Dial
Five different magnifications are provided
21. Backlit background illumination model (optional)
22. Chin-rest
23. The Fixation Knob of Chin-rest Paper
It is used to fix the chin-rest paper.
24. Centering Knob of illumination unit
Loosen the knob to allow the illumination light to move from the center of the vision field for indirect
retro-illumination. Fastening the knob can bring the illumination light back to the center.
25. Slit Width Control Knob
The slit width is continuously adjustable within the range from 0 to 14mm.The marks on the
left knob stands for the approximant value of the width.
26. Illumination Inclination Lever
Four inclination stops are available from 5°up to 20°. The interval between each is 5°.
27. Chin-rest Elevation Adjustment Knob
Rotate the knob to adjust the elevation of the chin-rest
28. Rail Cover
Protect the rail surface
29. Main Power Switch
Page 10
Version:1.0 GR SLIT LAMP USER MANUAL
Gilras LLC
10
2 Assembly
This section of the manual describes how to assemble the slit lamp. All parts should be taken
out with great care from the packing case before assembling.
2.1 Check List
NO.
MARK
NAME
QUANTITY
NOTE
1
A
HEAD-REST PART
1
Fig.2.1.1
2
B
MICROSCOPE PART
1
Fig.2.1.2
3
C
ILLUMINATION PART
1
Fig.2.1.3
4
D
WORK TABLE PART
1
Fig.2.1.4
5
E
RAIL COVER
1
Fig.2.1.5
6
F
BREATH SHIELD
1
Fig.2.1.6
7
G
INPUT POWER CABLE
1
8 H
FOCUSING TEST ROD
1
Fig.2.1.7
9
I
PROTECTING CAP
1
10
J
CHIN-REST PAPER
1
11
K
SCREW DRIVER
1
12
L
SPARE BULB
1
Fig.2.1.8
13
M
USER MANUAL
1
14
N
PACKING LIST
1
Fig.2.1.1
Fig.2.1.2
Page 11
Version:1.0 GR SLIT LAMP USER MANUAL
Gilras LLC
11
2.2 Assembly procedure
1．Open the carton，take out the tools like
screw driver and spanner.
2．Check the setting on the voltage selector
located on the bottom of the power box. If
it doesn’t match with the input voltage,
slide it to the proper position with watch
screw driver. Take out the table unit check
whether the power switch is in the proper
position, if not use the screw driver to
correct it.（caution）
3．Open the fuse holder with screw driver
and take out the fuse, check and ensure
that its rated value is corresponding to the
mains voltage:
110V---------------------2A
220V---------------------1A
It has been set to 220V, 1A before leaving
our factory.
Attention: Set the input voltage and
frequency of the instrument according
to that of the mains.
4．Before attaching the worktable
（Fig.2.1.4）on to the power table, please
screw off four M6x20mm bolts with the
spanner .（Fig.2.2.1 A Team）.
5．Lift the worktable to aim its screw hole at
Fig. 2.1.6
Fig. 2.1.3
Fig. 2.1.4
Fig. 2.1.5
Fig. 2.1.8
Fig. 2.1.7
A Team
B Team
Fig.2.2.1
Fig 2.2.1
Page 12
Version:1.0 GR SLIT LAMP USER MANUAL
Gilras LLC
12
The screw to connect
with the electrical
table
the assembly hole of the instrument table.
（Fig.2.2.2）
6．Put down the worktable, with the power
panel facing the operator, refasten the bolt
securely with the spanner （Fig.2.2.2）.
7．Connect two white adapters under table
board，Turn on and press Up & Down
switch to check whether the power table
is normal.（Fig.2.2.3）.
8．Remove the four screws of B Team with
the screw drive (Fig.2.1.4), take out the
head-rest from carton（Fig.2.1.1）， ensure
the four hole on head rest aim the screw
hole of B team（ Fig.2.2.1 B team） ,
retighten the previously removed screw
make head-rest connect with work
table .(Fig. 2.2.4)
9．Take out the slit lamp part (Fig.2.1.3)，put
it on the rails of the table board, check
whether the wheels can be rolled steadily
on the rails. (Fig.2.2.5)，place the rail
cover to the rail, remove four screws
attached to the rail with the screw drive,
retighten the previously removed screws.
（Fig.2.2.5 and 2.2.6）.
10.Take out the binocular tubes of
microscope part (Fig.2.1.2) ， match the
groove on the binocular tubes with the pin on
the microscope body. Fasten the fixing screw
on the body to the microscope.
ATTENATION：Don’t touch the objective
and eyepiece when assembling.
Locking
Screw
on Base
Fig.2.2.5
Rails
Fig.2.2.2
Up & Down
switch
White
Adapters
Fig.2.2.3
Rail
Cover
Fig.2.2.6
Fig.2.2.4
Four
screws
the binocular
tubes
Limit groove
Fig.2.1.2
Body
Insert
Screw
Fig.2.2.7
Limit pin
Page 13
Version:1.0 GR SLIT LAMP USER MANUAL
Gilras LLC
13
11. Remove the breath shield fixation screw
from the microscope arm, pass the removed
screw though the hole of the breath shield and
then screw it into the arm again (Fig.2.2.8).
12. Insert the plug on the top of the headrest
part (Fig.2.1.1) into the socked of the lamp
cap (Fig.2.1.3) on the illumination part.
13. Connect the plug below the headrest part
with the corresponding output socket of the
power box.
14. Collect tools and spare parts, put them
into the drawer under right side of table
board.
2.3 Checking procedure after
assembling
15. This instrument supplies a 3-wire cable.
Please select a proper power socket as
matched. Ensure that the instrument is
grounded well.
16. When the main power switch of the
power box is placed at ‘I’, it turns on, and ‘O’
for turn off. The main power switch should be
set at the ‘O’ position before connecting the
input cable with the power socket.
17. Turn on the main power switch, and the
pilot lamp will be lighted. Open the light
control knob to examine the brightness. The
power supply signal will turn bright when
power is connected(Fig.3.1.3).
18.Put on focus test rod (Fig.2.1.7)，
Adjust the slit width control knob and there
should be facula on the black flat surface
of focus test rod, and the brightness should
change.
19. Check the fixation target device to
confirm it is lighted. Ensure it can be
normally lighted (Fig.3.2.1)
20. Check whether all the moveable parts
such as aperture and slit height control
knob (Fig.2.3.2) filter selection lever, joy
stick (Fig.2.3.4) and magnification
changer lever (Fig.2.3.3) etc. could be
operated freely.
21. Turn on the light knob (Fig.3.1.3)， the
Joystick
Slit width
control
knob
Fig.2.3.1
display window
Filter handle
Aperture knob
Fig.2.3.2
Magnification
Fig.2.3.3
Fig.2.3.4
Screw
B r e a t h
S h i e l d
Fig.2.2.8
Page 14
Version:1.0 GR SLIT LAMP USER MANUAL
Gilras LLC
14
Dark
Bright
light should be from dark to bright.
22. After examination, turn off the main
power and cover the instrument with the
dust-proof cover.
3 Operation procedures
3.1 Diopter compensation and
Pupil Distance adjustment
①Use of the focusing test rod
The rod is supplied as one of standard
accessories for confirming the
microscope’s accurate adjustment. Insert
it into the main shaft hole with the black
flat surface facing the objective lens i.e.
the direction of the operator (Fig.3.1.1 &
3.1.2).
ATTENTION：After the adjustment,
take out the rod.
②Brightness adjustment
Switch on the main power switch and set
the brightness control switch (Fig.3.1.3)
at central part. Turn the slit width control
knob (Fig.2.3.1) to make the slit width to
be 2~3mm.
③Adjustment of Diopter compensation
The focus of the microscope is
calibrated according to the emmetropia.
If the operator is an ametropia, he
should adjust the eyepiece diopter.
(Fig.3.1.4).
Suggest adjusting the diopter as following
procedures:
First, rotate the diopter adjustment ring
counter clockwise until the end.(Fig.3.1.4)
Second, rotate the ring clockwise until a
fine slit image appears on the focusing text
rod. At this time, it is also the clearest
observation of the reticule in the eyepiece
Adjust another eyepiece in the same way.
Record the diopter value on each
eyepiece for future reference.
④ Interpupillary distance adjustment
Separate the prism box of the
microscope with both hands to adjust
the P.D. until both eyes could see the
same image on the focusing test rod
through the eyepieces, and at the same
time a stereo vision will be obtained.
When adjusting, be sure that the
eyepieces are at the same level
(Fig.3.1.5).
Brightness control switch
Fig.3.1.3
Make rod
insert the
hole
Fig.3.1.1
The flat faces
microscope
Fig.3.1.2
Diopter
adjustment ring
Fig.3.1.4
the prism
box
Fig.3.1.5
Page 15
Version:1.0 GR SLIT LAMP USER MANUAL
Gilras LLC
15
3.2 Patient position and use of
fixation target
1) Position of the patient’s head
Place the patient’s chin on the chin-rest
with the forehead against the forehead-rest
belt. Adjust the chin-rest elevation
adjustment knob below the chin-rest
until the patient’s can thus align with the
horizontal mark (Fig.3.2.1).
2) Use of the fixation target
For fixing the patient’s sight, just make
him look at the fixation target with the eye
not to be examined. Move the lamp bar to
change fixing position, so as to achieve
the correct lamp position
3.3 Base operation
1) Horizontal rough adjustment
Keep the joystick erect and move the base
to make the microscope move on the
horizontal surface to aim at the object
appropriately (Fig.3.3.1)
2) Vertical adjustment
Rotate the joystick to adjust the
microscope’s height until it aligns with the
target. Turn the joystick clockwise to raise
the microscope and counter clockwise to
lower it. (Fig.3.3.1).
3) Horizontal Fine adjustment
Tilt the joystick to make the microscope
move slightly on the horizontal surface.
While watching though the eyepieces, tilt
the joystick to aim accurately at the object
for a fine image. (Fig.3.3.1)
4) Locking the base
When finishing the adjustment, fasten the
base locking screw to lock the base to
prevent it from sliding. (Fig.3.3.2)
3.4 Operation of illumination
unit
1) Changing the slit width
Turn the slit width control knob (Fig.2.3.1)
and the slit width will be changed from
0mm to 14mm. The slit becomes a circle
at the 14mm size. The width value is
indicated approximately by the scale on
the knob. (Fig.3.4.1)
L i g h t
Ch in- r es t
H a n d l e
Fig.3.2.1
B e l t
Joystick
Fig.3.3.1
Up & Down
Locking
screw
Fig.3.3.2
Show slit
width
Fig 3.4.1
Page 16
Version:1.0 GR SLIT LAMP USER MANUAL
Gilras LLC
16
2) Changing the aperture and slit height
Turn the aperture and slit height control
knob and 7 different circular beams of
light are available at full aperture:
14,10,5,32,,1,0.2 Dia. Respectively and
one continuously changing aperture With a
slit image, the slit height can be changed
continuously from 1 to 14mm, which is
indicated though the display window
(Fig.3.4.2).
3) Rotating the slit image
Swing the aperture and slit height control;
knob horizontally to revolve the slit image
at any angle in the vertical or horizontal
direction. The angle of image rotation is
indicated by the rotation angle scale with
small division for 5° and big division for
10°(Fig.3.4.3).
4) Decentering the illumination light
Loosen the centering knob and swing the
slit width control knob back and forth so
the light spot moves away from the center
of the microscope vision field. It is mainly
used to examine the eyes by indirect
retro-illumination. Fasten the centering
knob and the slit light will return to the
center of the microscope vision field
(Fig.3.4.4).
5) Oblique illumination
Oblique illumination is used for sectional
or fundus examination by use of a contact
lens. Press down the inclination lever so
that the illumination part may incline to
20°, (5° of each division). Since the
illumination part may touch the patient’s
head, operate carefully (Fig.3.4.5)
6) Filter selection
By shifting the selection lever four
different filters can be inserted into the
illumination pathway. Usually the thermal
safety filter can make the patients feel
comfortable. After using the other filters,
we should turn back to the thermal safety.
Window
Aperture
knob
Fig.3.4.2
Angle scale
Fig.3.4.3
Inclination
lever
Fig.3.4.5
Center knob
Fig.3.4.4
Page 17
Version:1.0 GR SLIT LAMP USER MANUAL
Gilras LLC
17
Fig.4.1.2
(Fig.3.4.6).
From left to right : No filter 、
heat-absorption filter、Grey filter、R
ed-free filter、Blue filter.
The no filter is used for proofreading for the
manufacturer.
3.5 Operation notes
1) In the course of the operation the operator
should learn more about the contents of the
user menu, to master the structure and
function of slit lamp microscope so as to
carry out the right operation and diagnosis.
2) In order to prevent unnecessary
observations arising from the misuse of the
judge, operators should observe clearly the
different locations in the knob corresponding
to a different scale and different directional
marks in the process of using the SLM.
3) Operator should adjust the interpupillary
distance and diopter correctly in the
operating or which may lead a feeling of
dizziness
4) Operator may have a feeling of dizziness
in long time observing, so please adjust
observing time according to personal habit.
5) There will be a branch of crack-ray
irradiation in patients’ eyes, when they
receiving SLM diagnosis. So if the light is
too dark, it will affect the observing effect.
Conversely, if the light is too bright, in a long
time exposure patients’ vision might be
affected. If patients feel uncomfortable,
please tell the operator or take medical
treatment. Therefore, please try to avoid
prolonged exposure of patients’ eyes in the
bright light.
4 Maintenance
Attention: The replaced waste materials
should be treated as industrial rubbish.
4.1 Cleaning and maintenance
4.1.1 Cleaning way
① Cleaning the lens and reflecting
mirror：If any dust stick on the lenses or
reflecting mirror, brush them with the
brush supplied in the standard accessories.
In case any dust still remains, wipe it off
with soft cotton dipped with absolute
alcohol. (Fig.4.1.1).
Attention: Don’t wipe with hands or
hard project or any corrosive detergent
lest that the surface should be damaged.
② Cleaning the tie plate, rails and shaft：If
the slide plate, rails and shaft are dirty, the
vertical and horizontal movement will be
unsteady. Wipe them with clean soft cloth.
(Fig.4.1.2).
Filter
control
handle
Fig.3.4.6
Reflecting
Mirror
Objective
Fig 4.1.1
shaft
Slide plate
Rail
Page 18
Version:1.0 GR SLIT LAMP USER MANUAL
Gilras LLC
18
③ Cleaning and sterilizing the plastic
parts: Clean the plastic parts such as
chin-rest bracket, forehead-rest belt with
soft cloth dipped with soluble detergent or
water, then sterilize with medicinal
alcohol. Attention: Don’t wipe with any
corrosive detergent lest that the surface
should be damaged. (Fig.3.2.1).
4.1.2 The cleaning and maintenance circle of
the product
4.2 Protecting
There always are dusts and physiological salt
solution dropping into the main shaft hole of
the illumination ram during the operation.
Please cover the main shaft hole with the
protection cap lest that the instrument would
be damaged. Take off the cap when the focus
test rod needs to be assembled(Fig.4.2.1).
4.3 Adjusting the tightness of
the slit width knob
If the slit width control knob is too loose, the
slit width may be out of control. Loosen the
screw on the right knob with the screw drive ,
then hold the left knob firmly with one hand,
while the other hand rotate the right knob
clock-wise to adjust its tightness. When it is
appropriate, fasten the screw of the right knob
firmly again (Fig.4.3.1).
4.4 Adjusting the inclination of
the illumination part
If the inclination mechanism of the
illumination part is too loose, fasten the screw
on both sides of the pivot point with the screw
driver. (Fig.4.4.1)
4.5 Replacing the illumination
bulb
1. Turn the main power switch off.
(Fig.3.1.3)；
2. Pull out the plug attached to the lamp
house， remove out the fixation knob. Pull up
the lamp cap from the illumination unit.
(Fig.4.5.1& 4.5.2)
Screw
Protection
cap
Fig.4.2.1
Right knob
Left knob
Fig.4.3.1
Fig.4.4.1
Fig.4.5.1
Remove the
lamp cap
Loosen the
knobs
Take out
lamp part
Loosen the
two quick
disposal
screws
Fig.4.5.2
Page 19
Version:1.0 GR SLIT LAMP USER MANUAL
Gilras LLC
19
3. Loosen the two quick disposal
screws and take out the old lamp part
(Fig.4.5.2)，replace it with a new one. The
groove in the bulb fixation disc should be
aligned with the flange of the lamp base,
otherwise the illumination may be uneven
(Fig.4.5.3)， Fix the lamp part with three
knobs.
4. Place the lamp cap in the original
position，fix the lamp cap with the knob，
insert the connecting plug.
5. Turn on the main power switch and
check whether the new bulb is
illuminating. Check the spot to make sure
it round and no false light. (Fig.3.1.3)
4.6 Replacing the fuse
1. Turn off the main power switch
(Fig.3.1.3)，remove the power cable from
the socket. (Fig.4.6.1and 4.6.2).
2. The fuse is in the outlet which has
fuse mark , take out the fuse part
(Fig.4.6.3) with screw, you can see two
fuses, one is in use, other is in spare
(Fig.4.6.4), check them, Replace it with a
spare fuse if the one in use is burnt, then
place the fuse part into original place.
Fig.4.6.2
Fig.4.6.4
3. The fuse specification：
110V 2A， 125V
220V 1A， 250V
Attention: Please select the fuse of the
same type, specification and rate value.
Lamp part
The
groove
Fig.4.5.3
Fig.4.6.1
Fig.4.6.2
Fig.4.6.3
Take out
fuse part
Pull out
power cable
Input Power cable
Output Power cable
Brightness control
knob plug
Fig.4.6.1
Replace the
fuse
Page 20
Version:1.0 GR SLIT LAMP USER MANUAL
Gilras LLC
20
6V20W halogen bulb): the life span of
the bulb is 480 hours; however, it can
still work out of the time span though
the brightness of the bulb may be
lower.
4.7 Replacing the chin-rest paper
When the paper is depleted, pull upward two
fixing pins of the chin-rest and place a new
package of paper, then fix the fixing pins again.
(Fig.4.7.1).
4.8 Consumables
Fuse: 1A/220V ……………………. 1 piece
Bulb: 6V20W ……………………….1 piece
Power plug
Pull up pin
Fig.4.7.1
Page 21
Version:1.0 GR SLIT LAMP USER MANUAL
Gilras LLC
21
5. Trouble shooting guide
In case there is any trouble, please check according to the following table for reference. If it
still cannot work, please contact the authorized distributor.
Trouble
Possible cause
Remedy
No illumination
The cable isn’t connected correctly with the
power socket
Connect the power cable
correctly
The main power switch is on ‘O’ position
Place the switch on ‘I’
position
The plug on the power box is loosen
Insert the plug firmly
The plug on the lamp cap is loosen
Insert the plug firmly
The bulb has burnt out
Change the bulb
The fuse has blown
Change the fuse
The bulb is not assembled properly
Assemble the bulb
properly
The filter lever is in the middle position or in the
position of gray filter
Set the filter lever to the
correct position
the brightness adjustment knob is at min.
the brightness adjustment
knob
Slit is too dark
Voltage selector is wrongly set
Set the voltage selector
correctly
The coat of the reflecting mirror is oxidized
Change the reflecting
mirror
Too much dust on the reflecting surface
Clean the surface with the
brush
Fuse has blown
Voltage selector id wrongly set
Set the voltage selector
properly
The fuse doesn’t comply with the specification
Replace it with a suitable
fuse
Slit width closes
automatically
The slit width control knob is too loose
Adjust the tightness of the
control knob
Fixation bulb is off
The output plug is loose
Insert the output
plug firmly
Page 22
Version:1.0 GR SLIT LAMP USER MANUAL
Gilras LLC
22
Appendix A
Electronic Circle Drawing
Appendix B
Illustration of the board of power box:
Assembly of power supply:
Control plate
Transformer
Halogen bulb
Brightness control knob
Fixation target
1. Fuse box
2. Power socket
3. 110V/220V voltage selector
4. Brightness control knob socket
5. Illumination lamp socket
Fig.1
Fig.2
Fig.3
Fig.4
Page 23
Version:1.0 GR SLIT LAMP USER MANUAL
Gilras LLC
23
1. Refer to Fig.2, take out the link wire of brightness control knob inside the base and
connect it to the corresponding socket on the power box. Refer to Fig.3, insert the plug
of chin-rest bracket in the correct socket, and fasten it.
Caution: Make sure the main power plug is not connected.
2. Check the voltage selector, this power box support working under the voltage of 110V
and 220V. Please select the right voltage according to the voltage in your country.
Caution: Wrong power selection may lead to damage of the instruments.
3. Open the fuse box and make sure there is a fuse assembled (as Fig.4 shows).
Specification of the fuse:
110V： 2A， 125V
220V： 1A， 250V
4. Insert the main power cable and turn on the switch. Referring to the instruction of
brightness control knob, the brightness of the bulb will be adjustable.
Subject to change in design or specifications without advance notice
version： 1.0
Gilras LLC
9990 NW 14
th
St.#105, Miami FL33172 USA
Loading...