Manual

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E-light+RF+LASER
multifunctional beauty machine
User’s Manual
Page 1
Page 2
Contents
Chapter 1 Product structure ...................................................................................................... 3
Chapter 2 Accessories list ......................................................................................................... 4
Chapter 3 Product informaion ...................................................... Error! Bookmark not defined.
Chapter 4 Installation.................................................................................................................. 5
Chapter 5 Operation.................................................................................................................... 7
Chapter 6 Treatment ................................................................................................................. 12
6.1 Principle ............................................................................................................................. 12
6.2 Hand-piece and Application .............................................................................................. 13
6.3 Attentions before the treatment ......................................................................................... 14
6.4 Hair removal .................................................................................................................... 14
6.5 Skin rejuvenation ............................................................................................................... 15
6.6 Pigmentation Therapy ....................................................................................................... 16
6.7 Vascular Therapy............................................................................................................... 17
6.8 Acne Therapy .................................................................................................................... 17
6.9 Wrinkle removal ................................................................................................................. 18
6.10 After Treatment Care ..................................................................................................... 18
Chapter 7 Service manual ........................................................................................................ 19
Chapter 8 Maintenance ............................................................................................................. 20
Page 3
CAUTION
1. When you received the new machine, please open it work one minute
(enjoin from the machine working).
2. shut down the machine.
3. Affusion water again
4. Anew Open the machine
5. When the water stream very well, then you can let the machine working.
Chapter 1 Product structure
10.4" TFT color
touch screen
Hand-piece
Key switch
Emergency stop button
CPC connector
Page 4
Overflow hole
Infusion hole
circuit breaker
Power plug
Remote control
Drain hole
Chapter 2 Accessories list
hand-piece and 5 filters
Funnel
Protect glass
Goggle
Key switch
laser handle
RF handle
Power cord
RF tips
laser tips
Chapter 3 Product informaion
3.1 Application
E light application:
1. Therapy acne
2. Reduction of vascular lesions
3. Reduction of pigmented lesions
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4. Skin rejuvenation
5. Permanent hair removal
6. Wrinkle removal
RF application:
1. Skin lifting, tightening, and whitening
2. New collagen stimulation and production
3. Removes fine lines and wrinkles
4. Facial remodeling and body contouring
5. Visibly minimize pores
6. Circumference and cellulite reduction
7. Body Shaping areas: abdomen, buttocks, thighs, neck, upper arms.
Laser application:
1. 1064nm Wavelength: Remove black and dark blue tattoo pigments, such as tattoos,
eyebrows, dark color around the eyes, freckle, age spot etc.
2. 532nm Wavelength: Remove red and brown tattoos and red mark.
3.2 Specification:
Wavelength
430/530/560/580/640-1200(nm)
E light Handpiece
1 piece with 5 filters
RF handle
1 piece with 3 tips
Laser handle
1 piece with 2 tips(1064 and 532)
Cooling system
semiconductor+air+water+cooling gel
IPL light energy
1-50(J/cm²)
Pulse Duration
1-10ms
Pulse NO.
1--6
Skin cooling
-4°c-10°c
Display
10.4"color touch screen
Output power
2000W
RF frequency
10MHZ
Laser energy
1-1500MJ
Laser frequency
1-6HZ
Voltage
110V,50HZ or 220V,60HZ
Weight
72kg
Package size
63cm*60cm*111cm
Page 6
Chapter 4 Installation
4.1 The process of installation includes:
1.
2.
3.
4.
5.
6.
Unpacking the device.
Staying the device for one day, in order to avoid destruction by high humidity during
long distant transportation.
Assembly of its components and ensure that all connections are firmly in place.
Fill the water tank with distilled water only.
Connect the power supply.
Switch on the device and test all functions / parameters of the system.
4.2 Installation
1)
Installation treatment handpiece, please follow the figure,Plug the handpiece connector
firmly and properly to avoid the water circulation problem.
Figure 4.1
2)
Unscrew the Infusion hole cap and the overflow hole cap. (According to the following
figure)
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Figure 4.2
3)
Infuse distilled water until the water overflow the overflow hole.
Overflow hole
Figure 4.3
4)
5)
6)
Ensure that the key is in the off position and that the emergency cut off button is not
engaged. If it is engaged, release it by rotating the button towards the direction of the
arrow indicator.
Attach the power cord .
Switch the circuit breaker to the “On” position.
Figure 4.4
7)
Switch the unit on by inserting the key and turning it in a clockwise direction. At this time
water circulation and the cooling system starts automatically.
8) Observe whether water circulation runs well or not. After cooling system runs for at least
1 minute, the water slide into the cooling system and then turn off the power.
9) Then switch on the system. It means you can fully assemble system with handpiece,
screw on the infusion cap.
10) According to the following figure changeable of the various wavelength by 430,530,560,
580,640~1200nm filter for spot size: 12*30mm.
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slot
Figure 4.5
11) When replace water
1. Drain the remaining water which contains in the handle. Pay particular attention as not
to spill any water on the electronic terminals. Wipe off any spilled water with a soft
absorbent cloth.
2. Replace water every 2-3 months.
CAUTION
6.
7.
8.
9.
Only distilled water is to be used in the cooling system.
When using the system for the first time, rinse the cooling system with distilled water.
Ensure that the water level is adequate before treatment to prevent over heating.
Distilled water is added periodically specially when working in warmer climates and when
the treatment handpiece are changed often.
10. Make sure that the treatment head is firmly secured .
Chapter 5 Operation
WARNING
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1. WARNING: HIGH VOLTAGE: please ensure that all panels are secured prior to
operation.
2. Place the treatment head on its support when on standby / simmer mode.
3. All personnel in the treatment room must wear the protective filtered glasses supplied.
4. Make sure the patient is wearing the opaque protective goggles prior to treatment
5. Avoid looking directly into the intense light during the treatment even if you are
wearing the protection glasses.
6. Do not point the treatment head outside the treatment field
1.Select Therapy Program
Turn on the key switch of the machine,enter “Select Therapy Programs” interface (as Fig.1).
Select the treatment model to enter the interface of relevant treatment.
(Fig.1)
2.Treatment Interface (E-light)
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(Fig.2)
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After entering the interface of “Treatment interface” (as shown in Fig.2), press “Ready” to
trigger the handpiece. Capacitors will be charged automatically. Treatment can begin after
charging accomplished. Press “Standby” to turn off the handpiece.
Treatment mode:To indicate the current treatment mode.
Treatment parameter:treatment parameters recorded in treatment mode.
State indication:To indicate the current state and the flash numbers of the handpiece.
Treatment record:To indicate the current treatment record, different treatment records can
be recorded to facilitate different patients. Treatment records can be
altered, three choices available.
Cooling adjusting: To adjust the cooling temperature of the handpiece, five levels available.
The more blue snowflakes are, the cooler it will get. When the blue
snowflakes disappear, cooling stops.
Return button: To return to the menu of Select Therapy Program,not available when it is
gray (during treatment).
IPL energy:
To adjust the output energy of the handpiece. Energy value will be displayed
on the screen while adjusting, adjustable range: 1~50J/cm2. This setting can
be done directly during treatment with “△” or “▽”. “△” to increase, “▽” to
decrease,press and hold “△” or “▽” to rapidly adjust the output energy.
RF energy:
To adjust the RF output energy, Energy value will be displayed on the screen
while adjusting, adjustable range: 1~20. This setting can be done directly
during treatment with “△” or “▽”. “△” to increase, “▽” to decrease,press “△” or
“▽” to rapidly adjust the output energy.
The functions of IPL and RF can be turned on or off separately, but make sure that at least
one of them is turned on. Pressing “Ready” cannot light the lamp when IPL function is off
work.
Status Prompted Window
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treatment parameter
Adjust treatment parameter ,we can change the output energy of the treatment head, pulse
duration, pulse number,thus can get different treatment effect. There are 8 items adjustable.
:RadioFrequency(50~2500ms),Unit:50ms,The greater the data,
the longer the time of RF. 600ms is recommended
Pulse number(1-6), 3 is recommend
:Pulse charge interval time(1-4s), 2S is recommended
☻Press '▽' or '△' to increase or decrease parameters
First pulse duration:To adjust width of first pulse.The range is 1-10ms. 0.1ms as every unit.
First pulse delay:To adjust delay between first pulse and next pulse.The range is
1-100ms,each unit is 1ms.
Second pulse duration:To adjust width of first pulse.The range is 1-10ms. 0.1ms as every
unit.
Second pulse delay:To adjust delay between second pulse and next pulse.The range is
1-100ms,each unit is 1ms.
Repeat pulse duration:To adjust duration of third pulse and repeat pulse.The range is
1-10ms,every unit is 0.1ms.
Pulse output
First
Second
First Delay
Repeat
First
Second
RF delay Page 13
Discharge
interval
Treatment:
Pressing "Ready" button (green) to start treatment head and charge capacitors automatically,
Start the treatment after the capacitors finish charging. Press "Standby" button (red) to light
up the treatment head, system goes into standby mode. After finishing charging, please wait
10 seconds to start treatment after cooling the treatment head. After pressing "ready" button,
any buttons on the screen no response.After releasing the "ready" button,other button can be
adjusted At the end of treatment, pressing"standby" button exit the treatment program
and close the treatment head.
Doing the treatment with RF should make the skin good contact with electrode and daubs
cold gel. The energy should adjust from low to high and the time can not keep too long when
the skin contacts with electrode to avoid scalding. The feeling of RF treatment is hot inner of
the skin. If the tingle is strong, the reason could be that the cold gel is not enough and the skin
is not good contacting with electrode. The way to solve the problem is to daubs cold gel again
or adjust electrode.
RF treatment
RF
Pulse
Cooling
RF energy: 1-25 adjustable, usually use 5, you also can increase or decrease according to
customer’s feeling.
Continuous: RF all the time, so customer’s feeling is hot,and hot.
Pulse: RF work, stop, work, stop, so customer’s feeling is hot, cold, hot, cold, more
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comfortable.
LASER treatment
frequency
energy
Frequency: 1-6HZ adjustable, usually use 3HZ.
YAG: energy, 1-1500mj, usually adjust from 600mj, you can increase according to
customer’s feeling and the result.
Chapter 6 Treatment
6.1 Principle
Elight:
E Light(IPL and RF)combines three advanced technologies: Bipolar Radio Frequency + IPL
+Skin Contact Cooling.When the three are united in one treatment, wonderful treatment
experience and result can beexpected. The energy of Radio Frequency can reach the middle
and deep layer of the skin and heat up tissue, thus, lower energy is applied during the IPL
treatment. Uncomfortable feeling during the IPL treatment will be decreased significantly and
better result can be expected. In addition, cooling system involved in E-light can also ease
the uncomfortable feeling.The absorbing of the energy of radio frequency is not concerned
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with melanin. So, the E-Lighttreatment can get good result on the soft or thin hair so as to
decrease the risk caused by traditional IPL treatment.
RF:
Using the exclusive radio frequency(RF hereinafter) technology and contact cooling system,
RF can improve your appearance obviously.
1. RF produces heat when the tissue's electrical resistance converts the electric current to
thermal energy deeper within the dermis.
2. High frequency wave permeates epidermis and take effect on the collagen-rich derma
tissue directly which makes the inside water molecules under the take skin more quickly.
This move produces controllable heat and results in contraction of collagen and
generation of the new collagen and dermal remodeling.
3. The heat will accelerate the blood circle as well.
As a result, the skin looks tighter, wrinkles reduce, cellulite and fat reduction gradually.
Laser:
Laser emitted by the system has a strong penetration ability which allows it to reach the deep
layer of dermis. The pigment particles absorb the light energy and explode sharply, burst into
the tiny pieces, thus diminish the color density and get rid of it.
So the appliance can effectively do away with mutant pigmentations and vascular tissue
based on undamaged ambient tissue. This is called ‘Selective heat absorption’ principle in
medical field.
6.2 Elight Hand-piece and Application
Wavelength
Treatment
430-1200nm
Acne removal
530-1200nm
Freckles removal, Skin rejuvenation
560-1200nm
Whitening skin, Skin rejuvenation
590-1200nm
Vascular removal, fade melasma, skin rejuvenation
640-1200nm
Thick Hair removal
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The darker the skin
1. Decrease the fluence
2. Increase the pulse delay (allow more cooling)
The lighter the skin
1. Increase the fluence
2. Decrease the pulse delay
The darker the hair / pigmented lesion
1. Decrease the fluence
2. Increase the pulse delay (allow more cooling)
The lighter the hair / pigmented lesion
1. Increase the fluence
2. Decrease the pulse delay
Fine blood vessels
1. higher fluence
2. Decrease the pulse delay
3. Decrease the pulse width
Thicker blood vessels
1. Increase pulse delay (allow more cooling)
2. Increase the pulse width
The smaller the target size / lesion
1. Decrease pulse delay
The larger the target size / lesion
1. Increase pulse delay (allow more cooling)
Bony prominences (forehead, malar area,
shins)
1. Decrease the fluence by 10-20%
6.3 Attentions before the treatment
1. Consultation
patients who have the following conditions but not limited should not take the treatment :
A. Pregnant lady;
B. Hypersusceptible to light or recently take medicines, such as acheomycin;
C. Skin easy to scar;
D. Diabetes (blisters maybe appear and not easy to heal up);
E. Insolation in sunlight in recent 2 weeks;
F. Heart disease;
G. Epilepsy, and contagious skin disease, such as herpes;
H. Skin cancer.
2. Preparation
When begin the treatment, take off the accessories such as watch, rings, bracelets or
other metallic things which might be reflect light and cause danger during the treatment.
Wipe off the cosmetic and clean the skin. Ware the goggles to protect the eyes of the
patients and the beautician.
3. Sanitize the treatment head with alcoholized cotton balls.
4. Clean the filters with alcoholized cotton balls.
6.4 Hair removal
1. Cut or shave hair to 1-2mm or ask patients to shave at home 2-3 days before treatment.
2. Clear treatment area.
Page 17
3. Turn on machine ,put the 640nm or 690nm filter into the slot, select "hair removal",adjust
the parameter, set it to ‘ready’ .
4. Put cooling gel on treatment area about 2mm.
5. Wear protect goggles for patient and operator.
6. Shot the treatment area, let the crystal tip to touch cooling gel, You are permitted to have
1/3 overlapping on treatment area.
7. Wipe off cooling gel after treatment and clear treatment area with cooling water. If patients
feel warm or hot, you may put ice bag on treatment area until heat disappear.
8. Treatment Parameter:
Lady:
Skin Type
Pulses
number
First
pulse
First
delay
Second
pulse
Second
delay
Fluency
(640nm filter)
Fluency
(690nm filter)
One
3
6.0
21
6.5
22
33
34
Two
3
6.0
21
6.5
22
31
32
Three
4
5.0
22
5.5
23
29
30
Four
4
4.5
23
5.0
24
27
28
Five
5
4.5
24
5.0
24
26
27
Pulses
number
First
pulse
First
delay
Second
pulse
Second
delay
Fluency
(640nm filter)
Fluency
(690nm filter)
One
3
5.5
20
6.0
21
32
33
Two
3
5.5
20
6.0
21
30
31
Three
4
5.0
21
5.5
22
28
29
Four
4
4.5
22
5.0
23
26
27
Five
5
4.5
23
5.0
24
25
26
Man:
Skin Type
** If application for removal of facial and upper lip area, the fluency should be reduced by 2 to 3
Joules
** If application for fine and thin hair, the fluency can be increased by 1 to 2 Joules,D1 reduce by 1
to 2.
** If application for coarse and thick hair, the fluency can be reduced by 2 to 3 Joules ,D1 increase
by 1 to 2.
** If using spot size 15x50mm,the fluency should be increased by 2 to 3 Joules.
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6.5 Skin rejuvenation
1. Clear treatment area.
2. Turn on machine ,put the 560nm filter into the slot, select "skin rejuvenation",adjust the
parameter, set it to ‘ready’ .
3. Put cooling gel on treatment area about 2mm, you are suggested to put cooling gel in
refrigerator to keep temperature of gel during 0-4℃.
4. Wear goggles for patient and operator
5. Shot the treatment area, let the crystal tip to touch cooling gel. You are permitted to have
1/3 overlapping on treatment area.
6. Wipe off cooling gel after treatment and clear treatment area with cooling water. If patients
feel warm or hot, you may put ice bag on treatment area for 30 minutes until heat-feeling
disappears.
7.Treatment parameter:
Skin Type
Pulses
number
First
pulse
First
delay
Second
pulse
Second
delay
Fluency (560nm
filter)
One
3
5.0
20
5.5
21
24
Two
3
5.0
20
5.5
21
23
Three
4
4.5
21
5.0
22
22
Four
4
4.0
22
4.5
23
21
Five
5
4.0
23
4.5
24
19
**If using spot size 15x50mm, the fluency should be increased by 2 to 3 Joules.
6.6 Pigmentation Therapy
1. Clear treatment area.
2. Turn on machine ,put the 480nm or 530nm filter into the slot, select "pigmentation
therapy",adjust the parameter, set it to ‘ready’ .
3. Put cooling gel on treatment area about 2mm, you are suggested to put cooling gel in
refrigerator to keep temperature of gel during 0-4℃.
4. Wear goggles for patient and operator
5. Shot the treatment area, let the crystal tip to touch cooling gel. You are permitted to have
1/3 overlapping on treatment area.
6. Wipe off cooling gel after treatment and clear treatment area with cooling water. If patients
feel warm or hot, you may put ice bag on treatment area for 30 minutes until heat-feeling
disappears.
7.Treatment parameter:
Skin Type
Pulses
number
First
pulse
First
delay
Second
pulse
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Pulses
number
Fluency
(480nm filter)
Fluency
(530nm filter)
One
3
5.0
20
5.5
21
28
29
Two
3
5.0
20
5.5
21
27
28
Three
4
4.5
21
5.0
22
26
27
Four
4
4.0
22
4.5
23
25
26
Five
5
4.0
23
4.5
24
24
25
**If spot size 15x50mm, the fluency should be increased by 2 to 3 Joules.
6.7 Vascular Therapy
1. Clear treatment area.
2. Turn on machine ,put the 580nm filter into the slot, select "vascular therapy",adjust the
parameter, set it to ‘ready’ .
3. Put cooling gel on treatment area about 2mm, you are suggested to put cooling gel in
refrigerator to keep temperature of gel during 0-4℃.
4. Wear goggles for patient and operator
5. Shot the treatment area, let the crystal tip to touch cooling gel. You are permitted to have
1/3 overlapping on treatment area.
6. Wipe off cooling gel after treatment and clear treatment area with cooling water. If patients
feel warm or hot, you may put ice bag on treatment area for 30 minutes until heat-feeling
disappears.
7.Treatment parameter:
Skin Type
Pulses
number
First
pulse
First
delay
Secon
d pulse
Pulses
number
Fluency (580nm
filter)
One
3
5.0
20
5.5
21
25
Two
3
5.0
20
5.5
21
24
Three
4
4.5
21
5.0
22
23
Four
4
4.0
22
4.5
23
22
Five
5
4.0
23
4.5
24
20
** If application for thin veins beneath the skin, the fluency can be reduced by
1 to 2 Joules
** If application for thick veins beneath the skin, the fluency can be increased
by 1 to 2 Joules
** If using spot size 15x50mm, the fluency should be increased by 2 to 3
Joules.
6.8 Acne Therapy
1. Clear treatment area.
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2. Turn on machine ,put the 430nm filter into the slot, select "acne therapy",adjust the
parameter, set it to ‘ready’ .
3. Put cooling gel on treatment area about 2mm, you are suggested to put cooling gel in
refrigerator to keep temperature of gel during 0-4℃.
4. Wear goggles for patient and operator
5. Shot the treatment area, let the crystal tip to touch cooling gel. You are permitted to have
1/3 overlapping on treatment area.
6. Wipe off cooling gel after treatment and clear treatment area with cooling water. If patients
feel warm or hot, you may put ice bag on treatment area for 30 minutes until heat-feeling
disappears.
7.Treatment parameter:
Skin Type
Pulses
number
First
pulse
First
delay
Secon
d pulse
Pulses
number
Fluency(430nm
filter)
One
3
5.0
20
5.5
21
25
Two
3
5.0
20
5.5
21
24
Three
4
4.5
21
5.0
22
23
Four
4
4.0
22
4.5
23
22
Five
5
4.0
23
4.5
24
20
**If using spot size 15x50mm, the fluency should be increased by 2 to 3 Joules.
6.9 Wrinkle removal
1. Clear treatment area.
2. Turn on machine ,put the 580nm filter into the slot, select "wrinkle removal",adjust the
parameter, set it to ‘ready’ .
3. Put cooling gel on treatment area about 2mm, you are suggested to put cooling gel in
refrigerator to keep temperature of gel during 0-4℃.
4. Wear goggles for patient and operator
5. Shot the treatment area, let the crystal tip to touch cooling gel. You are permitted to have
1/3 overlapping on treatment area.
6. Wipe off cooling gel after treatment and clear treatment area with cooling water. If patients
feel warm or hot, you may put ice bag on treatment area for 30 minutes until heat-feeling
disappears.
7.Treatment parameter:
Skin Type
Pulses
number
First
pulse
First
delay
Second
pulse
Second
delay
Fluency (560nm
filter)
One
3
5.0
20
5.5
21
24
Two
3
5.0
20
5.5
21
23
Three
4
4.5
21
5.0
22
22
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Four
4
4.0
22
4.5
23
21
Five
5
4.0
23
4.5
24
19
**If using spot size 15x50mm, the fluency should be increased by 2 to 3 Joules.
6.10 After Treatment care
1. Untoward Reactions:Pain, Scab formation, Pigmentation change, Scar formation, Swelling
and Erythema.
2. Protect treated skin from exposure to the sunlight or irradiation of ultraviolet radiation.
3. DO NOT use irritative cosmetics within 24 hours.
4. Wash face with clean water, use moisture cosmetic when necessary.
5. Don’t eat piquant food.
6. Take Vc or VE
6.11 RF Treatment
1, Remove the cosmetic, clean treatment area.
2, Take picture of treatment area before treatment;
3, Set proper parameter on screen. Usually use 5, and choose continuous or pulse, according
to different customer’s feeling.
4, Make the unit ready for treatment by press ‘ready’ button on the screen.
5, Put on the gel on the treatment area equally;
6, Before pressing the button on the hand-piece, make sure two electrodes on the head touch
the treatment skin completely. It will be dangerous if just one electrode or part of two
electrodes touch the skin.
7, Press the emitting button on the hand piece continually, move the hand piece on the
treatment area slowly.
8, When you finish the treatment on one part, please loosen the emitting button on the hand
piece first, and move hand piece next, the indicating lamp will off, the pulse output stops.
Then change the other treatment area to operate.
6.12 Laser Treatment
The first time treatment, voltage (power) is not too high (can blast is ok), after 10 minutes,
treat again, repeated 2-3 times, do like this, can get the best results. start with lighter energy,
close to the skin, don’t damage the skin. The second treatment in a month later, the power
(voltage) may be bigger, 3rd time, power is biggest, usually, this time is the last time.second
time and third time, the head can leave the skin a little distance, not too close. Wash colored
tattoos: the first, use 1064nm head (Round one) wash, wash the black color, then use 532nm
Page 22
head (square one) one month later, do like this, can remove all color easy. Wash colored
tattoo, can use larger energy, not too fast frequency, the energy can be more than 700, after
every time treatment, clean up the head carefully.
When treating, the operator holding the laser handle as possible to form a 90 degree angle
with the treatment site to ensure that the vertical laser light, avoid the laser energy loss
reduction.
Check power cable
Check circuit breaker / fuse
Check key switch
No power
Disengage the emergency cut off switch by rotating
towards the direction of the arrows indicated
Notify your distributor
Key pads are none
responsive
Please contact the dealer.
System failed to initialize
Not enough power, please check main power supply.
Please contact the dealer.
Malfunction of flash lamp on
the treatment head
The treatment head / flash lamp has reached its
maximum life span (100,000) shots. Replace the treatment
head
The E-light treatment head is probably damaged, please
change the treatment head or contact the dealer.
The treatment head is
leaking
The treatment head is probably damaged, please change
the treatment head or contact the dealer.
The treatment handle is
warm
The system is designed for continued used for up four
hours in optimal environmental temperature and humidity.
Always place the system on standby mode while awaiting
treatment. The system might have been left on for an
extended period. Turn the unit off, let it cool down for half an
hour then re- start
Contact the dealer.
The power of The treatment
head has weakened
The treatment head has nearly reached its maximum life
span (100,000 shots) the fluence can be adjusted by a few
joules to compensate.
Chapter 8 Maintenance
1. Please change the distilled or pure water every 2-3 month to keep the water tank clean
Page 23
and make sure water circulation well.
2. Please get water out from the unit before moving it for long distance, e.g. from one city to
another.
3. Clean the main host.
4.Clear Sapphire Crystal right after each treatment.
5. Clear filter right after each treatment, and put into the box.
6 Replace the treatment hand-piece at a appropriate time(maximum life 100000 shots).
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