URIT Medical Electronic VRN DA-20 User manual

DA-20
URIT Medical Electronic Co.,Ltd.
User Manual
Ultrasonic Scaler
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CONTENT
Copyright & Declaration........................................................................................................................................................... 3
1. Introduction............................................................................................................................................................................. 4
2. Installation................................................................................................................................................................................7
3. Operating instruction..........................................................................................................................................................12
4. Cleaning and sterilization.................................................................................................................................................. 17
5. Troubleshooting................................................................................................................................................................... 18
6. Storage, maintenance and transportation.................................................................................................................... 20
7. Maintenance.......................................................................................................................................................................... 20
8. After-sale service.................................................................................................................................................................21
9. Symbols description........................................................................................................................................................... 21
10. Environmental Protection................................................................................................................................................23
11. Manufacturer's rights....................................................................................................................................................... 24
12. Electromagnetic compatibility....................................................................................................................................... 25
13. Index：Table of tip power for use................................................................................................................................. 30
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Copyright & Declaration
Copyright URIT Medical Electronic Co., Ltd. All rights reserved.
This document is an English translation of the original Chinese version.
Congratulations on your purchase of DA-20 Ultrasonic Scaler from URIT Medical Electronic Co., Ltd. .It will
bring you a new experience and convenience.
The manual is compiled in accordance with the relevant laws and regulations of China and the specific
conditions of the DA-20 manufactured by URIT Medical Electronic Co., Ltd.
The manual includes the latest information as of the time of printing. URIT Medical Electronic Co., Ltd. is solely
responsible for the revision and explanation of the simplified Chinese version of the manual, and reserves the
right to change the relevant content after the manual is printed without prior notice.The pictures involved in this
manual are schematic diagrams and are for reference only. If the pictures do not match the actual product, the
actual product shall prevail.
All materials in this manual are protected by copyright law. Without the prior written consent of URIT Medical
Electronic Co., Ltd., any form of reproduction, photocopying, or translation of any content in the manual is not
allowed to be translated into other languages.
The operator must strictly follow this manual to operate. Otherwise, URIT Medical Electronic Co., Ltd. shall not
be responsible for any errors and equipment failures caused by illegal operations.
NOTICE：URIT Medical Electronic Co., Ltd. does not promise that the device will
be used for a certain special purpose and make any implied guarantee for its
marketability and applicability.
If you need after-sales service support, please contact Guilin Veirun Medical Technology Co., Ltd. or an authorized
agent.
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1. Introduction
1.1. Overview
DA-20 adopts piezoceramic ultrasonic technology, which uses high-frequency and high-energy vibrations
generated by ultrasonic waves to clean the surface of the teeth, break up calculus and stains in the periodontal
pockets by tips, and then the rubble and plaque are washed down by the water spray produced by the device. It is
designed for gingival, subgingival cleaning and root canal washing and has the function of automatic water supply.It
has following characteristics:
The irrigation system inside the product is made of anti-bacterial materials. The liquids used in clinics, such as
hydrogen peroxide, chlorhexidine, sodium hypochlorite, etc., can be applied in the mode of automatic water
supply system, which can significantly improve the performance of teeth cleaning and root canal washing.
The handpiece can be sterilized at 135℃ temperature and 0.22 MPa pressure.
Automatically search for the best working condition, the performance of device is more stable.
The device has a built-in computer microprocessing chip, which can intelligently control the working power and
make treatment more comfortable.
The wireless foot switch is used to remotely control the unit, which is more convenient to operate. At the same
time, wired foot switches can also be selected according to user needs.
High-brightness LED, which can improve the efficiency of clinical operation, and it can also use ordinary
plug-in handpiece that has high compatibility.
The product service life is 10 years.
1.2. Equipment description
The product is mainly composed of function control circuit, power supply circuit, irrigation system, tip, handpiece, and
foot switch.
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1.3. Intended use
The product is intended use for removing tartar, plaque on the surface of teeth and in periodontal pockets, cleaning
and washing root canals.
1.4. Contraindications
Patients with hemophilia is forbidden.
Patients with heart pacemaker is forbidden.
Doctors with heart pacemaker is forbidden.
Use with caution in patients with heart disease, pregnant women and young children.
1.5. Technical parameters
Input Voltage：220 V±22 V～，50/60 Hz
Input Power：35 VA
Batteries of wireless foot switch：AA Batteries×2
Receiving sensitivity: -114 dB, receive frequency：2.4 G-2.5 G
Tip amplitude： minimum,1 μm, deviation -50%
maximum, 100 μm, deviation +50%
Half deflection force：minimum, 0.1 N, deviation -50%
maximum, 5 N，deviation +50%
Vibration frequency of tip：18 kHz～45 kHz
Note：The vibration frequencies of different types tips are different, but they are all distributed within the described
range.
Output Voltage of tip：3 W～20 W
Fuse：T1AH250V
Weight：1.8 kg
Operation modes：continuous running
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Protection against electric shock rating：Class Ⅱ equipment
Protection against electric shock degree：B-type application part
Ingress protection rating ： Ordinary equipment (IPX0), Wired foot switch is waterproof equipment （ IPX1 ） ,
Wireless foot switch is waterproof equipment（IPX4）
Degree of safety application in the presence of a flammable anesthetic mixture with air, oxygen, or nitrous
oxide:Non-AP,APG type equipment
Wireless foot switch:
Emission frequency: 2.412 GHz-2.462 GHz
Modulation type: GFSK
Effective radiated power：12 dbm
1.6. Operation environment
a）Ambient temperature：5 ℃~ 40 ℃
b）Relative humidity：≤80%
c）Atmospheric pressure：70 kPa~106 kPa
d）Applicable range of power supply voltage ：220 V±22 V～
1.7. Side effects, adverse events and measures
According to the results of many years of clinical treatment with similar equipment, there are no serious side effects
except that the enamel of the treatment site may leave a few scratches that can be recovered.
If any unexpected action occurs during the use of this device, please immediately power off it to stop the device to
ensure safety.When using the device, pay attention that the tip needs enough water to dissipate heat, otherwise may
burn the patients. If burns occur, please stop using the device immediately and perform corresponding diagnosis and
treatment according to the burns.
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2. Installation
2.1. Front/Back view
Figure 2.1：
Solution container：Storage solution for scaling.
Slider for changing power scale and indicator light： it used for changing power scale and displays the power
scale of the current working state.
Slider for changing liquid flow rate and indicator light：it used for changing liquid flow rate at the tip and displays
the flow rate of the current working state.
Tip：used in conjunction with ultrasonic scaler for cleaning and reshaping the surface of teeth, root canals and other
parts
Handpiece：used in conjunction with scaler with water spray function
Handpiece cord：used to connect hanpiecee and unit
Figure 2.1
Figure 2.2
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Endo mode key, indicator light：switching the endo mode, the light is on to indicate that the ultrasonic scaler is in
endo state.
Perio mode key, indicator light：switching the perio mode, the light is on to indicate that the ultrasonic scaler is in
perio state.
Scaling mode key, indicator light：switching the scaling mode, the light is on to indicate that the ultrasonic scaler is in
Scaling state.
Figure 2.2：
Power switch: switching the power state
Power outlet: power input
Fuse holder: place the fuse
2.2. Connection of the accessories
将脚踏开关的 USB 接头按图纸位置插入主机
Socket of wired foot switch is at the bottom of the device, it will be inserted into the forward or backward of the wire
groove firstly according to the user's needs.
Figure 2.3
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2.3. Solution container installation
Figure 2.4
2.4. Handpiece installation
Figure 2.5
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2.5. Tip installation
Figure 2.6
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2.6. Matching code for wireless foot switch
1) Press and hold the three keys "G", "P" and "E" at the same time until the indicator light of liquid slider starts to
flash slowly under the device is power on.
2) Keep foot switch pressed and insert two AA batteries (operate when indicator light of liquid slider starts to flash
slowly at the same time) ,and then foot switch will enter matching mode and it should keep pressed state for 3
seconds after it is power on.
3) Loosen foot switch and restart, and the device can be controlled by wireless foot switch.
4) Press and hold the three keys "G", "P" and "E" at the same time when these three modes are at 10 scales , and
the device will cancel all match.
5) Press and hold the three keys "G", "P" and "E" at the same time when the liquid flow rate is 10 scales, the
device will enter the calibration mode of liquid flow rate. Don’t enter this mode under normal circumstances. If
necessary, please contact the dealer or contact the manufacturer.
Figure 2.7
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Note:Tear off the membrane behind the sticker and
stick it on the bottom of foot switch for waterproofing
Press "1" to start the device.
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3. Operating instruction
3.1. Major components of handpiece
Conehead：it can be unscrewed, users can take out the conehead regularly and clean the main pole with alcohol.
Light guide：it can be cleaned with alcohol.
Handpiece：it is the important parts of the device, which can be at high temperature and high pressure environment.
Handpiece cord：it is used for connecting the handpiece and irrigation system and circuit of the unit .
NOTICE：Please keep the handpiece and socket dry.
3.2. Torque wrench
1) The design of torque wrench adopts a special structure, which can ensure the user can effectively load and
unload the tip and protect the user's hand during use, and it can avoid be scratched by the tip when load and
unload the tip(See Figure 2.6).
2) Put the tip into the wrench and hold the handpiece tightly, rotate the tip in a clockwise direction till the tip does
not turnround anymore, and then it is installed.
3) Unload the tip: Hold the handpiece and rotate the tip in a counter-clockwise direction by wrench to remove it.
4) Once after using, please put the wrench into sterilization cabinet to sterilize.
5) After sterilization, due to the high surface temperature of the torque wrench, the wrench needs to be cooled
before it can be used again to avoid burns.
6) When the torque wrench is not in use, place it in a ventilated and dry place and keep it clean.
3.3. Scaling function for gingiva and subgingival
1) Open the package and check whether the accessories of the product are complete according to the packing list.
Take out the device from the box and place it on a stable surface facing the operator.
2) Set the slider for changing liquid flow rate to the max scale.
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3) Insert the battery into the wireless foot switch or insert the plug of the wired foot switch into the foot switch
socket(See Figure 2.3 and Figure 2.7).
4) Open the solution container cap, put a proper amount of pure water into container, close the cap, and install the
container to the installation position of container on the device(Figure 2.4).
5) Fasten the tip to the handpiece with torque wrench (See Figure 2.6), and then correctly connect the handpiece
with the handpiece cord socket. Before installing the handpiece, dry the connection end of the handlpiece and
the socket thoroughly(Figure 2.5).
6) Power off the device, then connect the output of the power cord to the device, and then connect the input of the
power cord to the electric supply(See Figure 2.2).
7) Power on the device, and the“G”indicator light and the first 3 power indicator lights will light up at this time.
8) The operator selects the "G" and "P" modes according to the series of the tips, and the power of the tip is shown
in the attached table.
9) The frequency is relatively fast when the product is working normally, ensure that the device has normal water
output, only light touch and reciprocating movement at a certain speed can be used to eliminate dental calculus,
and there is no obvious feeling of heating at the tip; Excessive local force or staying for too long when cleaning
teeth.
10) Vibration intensity: adjust the vibration intensity according to your needs. Generally, user can adjust it to a
medium vibration intensity. User can also adjust the vibration intensity at any time during the clinical process
according to the patient's sensitivity and the hardness of the calculus.
11) Liquid flow rate: step on the foot switch, the tip will vibrate, slide the liquid slider to make the liquid into a
semi-atomized state to cool the tip and clean the teeth.
12) Generally use the pen position to hold the handpiece.
13) During scaling, do not make the tip be in vertical contact with the teeth, and do not apply heavy pressure to
avoid damage to the teeth and tip.
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14) After completing scaling, keep working for 30 seconds under the water supply to clean the handpiece and tip.
15) Remove the tip and then pull out the handpiece for sterilization.
NOTICE：
1) Please do not pull out the handpiece when stepping on the foot switch and the tip vibrates.
2) If do not use the wireless foot switch for a long time, please remove the battery.
3) Please do not move or turn over the device when it is working.
3.4. Endo function
1) Fix the holder of endo file to the handpiece with endo wrench (See Figure 2.6 ).
2) Unscrew the nut of the holder .
3) Insert the endo file into the hole in front of the holder.
4) Tighten the nut of the endo file with endo wrench.
5) Press "E", the "E" indicator lights up.
6) When the Endo function is selected, slowly extend the endo file into the patient's root canal, step on the foot
switch and start the root canal washing. Adjust the power of root canal washing as needed.
NOTICE：
1) Tighten the endo tip.
2) Tighten the nut of the holder.
3) Do not apply heavy pressure when root canal washing.
4) Do not step on the foot switch when the endo file is not placed in the root canal.
5) It is recommended that the power adjustment start from the 1st scale and slowly increase to the
3rd scale when using the Endo function.
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6) Please do not move or turn over the device when it is working.
3.5. Wireless foot switch
3.5.1. Operating
1) Put 2 AA batteries into the wireless foot switch in the direction indicated by the positive and negative poles,
install the battery cover and glue the waterproof rubber pad, and tighten the cover screws.
2) Place the wireless foot switch flat on the ground.
3) After matching with ultrasonic scaler, power on the device and then user can use the wireless foot switch to
control the device.
4) Within 5 meters of the ultrasonic scaler, the vibration of the device can be controlled by the wireless foot switch
at any position. Please be careful not to have large obstacles between the foot switch and the device, so as not
to affect the wireless transmission.
3.6. Automatic water supply
3.6.1. Operating：
1) Pull out the container installed on the device vertically upwards.
2) Open the cap of container, add enough pure water, and then close the cap tightly.
3) Clean bottleneck and socket connection of container.
4) Insert the container vertically into the container interface of automatic water supply on the device.
NOTICE：
1) Make sure that the air vent and water outlet are not blocked.
2) Check if the gasket in the cap is fine. If the gasket is deformed or falls off, please replace and install
it in time.
3) Please clean the connection of the container before each use.
4) Please add liquid in time to keep the liquid path unblocked when the liquid in the container is
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lower than the lower limit.
3.7. Precautions
1) Keep the device clean and dry before or after use.
2) Prohibit suspended or inverted device.
3) Before each use, please let the device work for 30 seconds under the condition of water to remove the residual
water in the pipeline.
4) The operator should be equipped with adequate protection (such as goggles, mask, etc.) to prevent
cross-infection.
5) Using the product must comply with the requirements of the relevant operating specifications and relevant laws
and regulations of the medical department, and it is limited to trained doctors or technicians.
6) Before each use, please sterilize the tip, wrench and other accessories.
7) Don’t tighten or loosen the tips when the handpiece is activated.
8) Tighten the tips.
9) When the tip is damaged or worn, the vibration intensity will decrease. The operator should replace the tip with
a new one according to the clinical situation.
10) Don’t bend or sharpen the tips.
11) Don’t use unclean water, and do not use normal saline instead of pure water sources.
12) Don’t pull the tail wire forcefully during the use to avoid damage to the tail wire.
13) Don’t beat and scrape the handpiece in a hurry.
14) After using the device, power off the device and pull out the power plug.
15) Our company specializes in producing medical devices and we're responsible for its security only when the
device maintained, repaired and modified by URIT or Distributor authorized by the our Company, and the
replacement accessories are made by our Company and operating follow the user manual.
16) The internal thread of the tips produced by some manufacturers is rough, rusty, chipped or adopts other
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standard threads. When used with the handpiece, it is easy to damage and slip the teeth, and even cause
irreparable damage to the product. Please use the original tip.
17) When the operator uses a different series of tips, it needs to adjust the working mode accordingly to avoid
breaking the tip.
18) Don’t move or flip the device during use.
4. Cleaning and sterilization
4.1. Handpiece
4.1.1. When using alcohol for sterilization, use 70%~80% (volume ratio) ethanol to soak a piece of clean dry gauze,
and then use this gauze to wipe the surface to be sterilized twice for 3 minutes. Dry or wipe the residual
alcohol with a clean, dry cloth.
4.1.2. Sterilization
1）Please sterilize at 135℃ temperature and 0.22MPa for 15 minutes by high pressure sterilizer.
2）Pull out the handpiece and remove the tip after each use.
3）Wrap the handpiece with a disinfectant towel or bag.
4）After sterilization, the handpiece should be naturally cooled before use again to avoid scalding.
NOTICE：
1) Before sterilization, use compressed air to remove the cleaning fluid remaining in the handpiece.
2) When sterilization, ensure to remove the tip from the handpiece, and avoid mixing it with other
instruments for sterilization.
3) When sterilization, please always pay attention to whether the handpiece is damaged externally. It
is strictly forbidden to apply any protective oil on the surface of the handpiece.
4) Sterilizable parts can be sterilized at least 250 times
5) It is strictly forbidden to sterilize the handpiece in the following ways：
Put the handpiece in the solution and cook.
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Soak the handpiece with disinfectant water such as iodine, alcohol, glutaraldehyde, etc.
Put it into the oven or microwave oven to bake at high temperature.
4.2. Tip
The tips can be sterilized in high temperature and pressure environment.
4.3. Torque wrench and Endo wrench
1) Torque wrench and Endo wrench can be sterilized in high temperature and pressure environment.
2) It is strictly forbidden to sterilize in the following ways：
Put it in the solution and cook.
Soak it with disinfectant water such as iodine, alcohol, glutaraldehyde, etc.
Put it into the oven or microwave oven to bake at high temperature.
NOTICE：
We will not be responsible for the damage to the torque wrench and endo wrench directly or indirectly caused by the
improper use of the above methods.
4.4. Cleaning Tips, Torque wrench and Endo wrench
Tips, Torque wrench and Endo wrench can be cleaned by the ultrasonic cleaning machine.
5. Troubleshooting
Error
Possible causes
Solutions
Turn on the power switch, there
is no indicator light on the panel
Poor contact of power plug
Plug in the power plug tightly
Internal fuse not working
Contact your local dealer or our company
There is no vibration or no water
spray at the tip after stepping on
foot switch
Poor contact of wired foot switch
Plug in the plug of foot switch tightly
Batteries are out of power of wireless foot
switch
Change new batteries
Foot switch not working
Match the foot switch again（please refer to paragraph 2.6）
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After stepping on the foot switch,
the tip does not vibrate but there
is water spray at the tip
Tip loose
Fasten the tip using the wrench
Faulty handpiece
Pull out handpiece and contact your local dealer or our
company
Faulty handpiece cord or inside circuit
Contact your local dealer or our company
There is water spray at the tip
after power off
Faulty electromagnetic valve
Contact your local dealer or our company
Handpiece overheating
Spray is set up too small
Adjust the spray
Handpiece overheating
seriously
Faulty handpiece
Pull out handpiece and contact your local dealer or our
company
Inadequate amount of spray
Spray is set up too small
Adjust the spray
The water circuit is blocked
Unblock the water circuit by three-ways syringe
Weak tip vibration
Tip loose
Fasten the tip using the wrench
There is not dry between the base of the
handpiece and its cord
Dry the connector between the base of the handpiece and
its cord by hot air
Worn or bent tip
Replace the tip
Water is leaking between the base
of the handpiece and its cord
Wear of the seal
Replace the seal
There is no vibration or noisy at
root canal file
Loose clamping nut
Tighten clamping nut
Damaged root canal holder
Replace root canal holder
NOTICE：If the fault still cannot be resolved, please contact your local dealer or our company.
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6. Storage, maintenance and transportation
6.1. Storage and maintenance
The device should be handled with care, far away from the earthquake source, and should be installed or stored
in a cool, dry and ventilated place.
Do not mix with toxic, corrosive, flammable and explosive materials during storage.
When the product is not used for a long time, it should be connected to water and electricity once a month, each
time for 5 minutes.
Store temperature from -20 ℃ to 55 ℃,relative humidity ≤95%，atmospheric pressure from 70 kPa to 106 kPa.
6.2. Transportation
Transport should not be mixed with dangerous goods.
Avoid excessive shock and vibration during transportation, handle with care and avoid upside-down.
Keep away from rain, sunlight or snow during transportation.
7. Maintenance
Maintenance list as follow:
No.
Name
Specification/model
1
Main board
/
2
Touch keyboard
/
3
Handpiece
/
4
Handpiece cord
/
5
Tips
/
6
Torque wrench
/
7
Endo wrench
/
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