VRN DQ-40 User manual

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1. Product instruction........................................6
1.1. Overview ....................................................... 6
1.2. Structure and composition ..................... 7
1.3. Intended use.................................................7
1.4. Working principle ....................................... 7
1.5. Contraindications ....................................... 8
1.6. Main technical specifications ................. 8
1.7. Security Classification of Device .........10
1.8. Working environment .............................10
1.9. Side effects, adverse events and
measures ............................................................. 10
2. Production Installation .............................. 11
2.1. Main Unit Front & Rear Schematic
Diagram of DQ-40 ............................................11
2.2. Operation Panel of DQ-40 .....................13
2.3. Main Unit Front & Rear Schematic
Diagram of DQ-80 ............................................15
2.4. Touch Panel (DQ-80) ...............................17
2.5. Schematic diagram of tip and
handpiece installation .................................... 20
2.6. Wireless foot switch matching ............23
2.7. Air Intake and power supply sockets 25
2.8. Adjustment of DQ-40 water volume
and powder flow .............................................. 26
2.9. Adjustment of DQ-80 water volume
and powder flow .............................................. 27
2.10. Product Installation Steps .................. 28
3. Product Functions and Operations........29
3.1. Ultrasonic System ................................... 29
3.2. Air polishing system ............................... 33
Contents

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3.3. Cleaning Mode .......................................... 35
3.4. Setting (not available for DQ-40) ....... 36
3.5. Multifunctional foot switch-- not
available for DQ-40 ......................................... 36
3.6. Precautions.................................................37
4. Cleaning, Disinfection and Sterilization41
4.1. Handpiece................................................... 41
4.2. Tip ..................................................................43
4.3. Wrench .........................................................43
4.4. Cleaning of Tips, Torque wrench and
Endo wrench ...................................................... 44
5. Troubleshooting ...........................................44
5.1. Troubleshooting ....................................... 44
5.2 .Annotation ..................................................48
6. Storage, Maintenance, Transportation 49
6.1. Storage and Maintenance ..................... 49
6.2. Transportation .......................................... 50
6.3. Gas/water Separation ............................ 50
7. Maintenance Checklist...............................50
8. Warranty ......................................................... 52
9. Symbols .......................................................... 52
10. Environmental Protection ...................... 54
11. Manufacturer's rights ...............................56
12. Electromagnetic compatibility ..............56
12.1. Requirements for cable installation 57
12.2. components of electromagnetic
compatibility ...................................................... 58
12.3. Guidance and manufacturer’s
declaration - Electromagnetic Emissions 58
12.4. Guidance and manufacturer’s
declaration-Electromagnetic Immunity ...59
12.5. Guidelines and manufacturer's
declarations --- Electromagnetic
Immunity ............................................................. 62

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12.6. Recommended isolation distance
between portable and mobile RF
communication devices and the ultrasonic
scaler DQ-40/DQ-80 ....................................... 64
13. Attachment: Power table of ultrasonic
scaler tips ............................................................ 67

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Statement
Guilin Veirun Medical Technology Co.,Ltd. ©ALL RIGHTS RESERVED
Congratulations on becoming a respected customer of Guilin Veirun Medical Technology Co.,Ltd. and
welcome to use the ultrasonic scaler DQ-40/DQ-80, which will bring you a new experience and convenience.
This Operation Manual includes the latest information up to the time of its printing. Guilin Veirun
Medical Technology Co.,Ltd. is solely responsible for the revision and interpretation of simplified
English version of this Operation Manual, and reserves the right to make alterations without notice
after printing. Some schematic diagrams listed in this Operation Manual are for reference only. If
the picture is inconsistent with the real object, the real object shall prevail.
All information stated in this Operation Manual is protected by copyright law. Without the prior
written consent of Guilin Veirun Medical Technology Co.,Ltd. the contents in the Operation Manual
shall not be reproduced, copied or translated into other languages in any form.
The use of the product must comply with the requirements of relevant operating procedures and relevant
regulations of the medical department, and can only be used by trained doctors or technicians.
Please carefully read this Operation Manual before use and properly keep it for future reference.
All operations must be carried out in strict accordance with the operating instructions of this
Operation Manual. Otherwise,Guilin Veirun Medical Technology Co.,Ltd. will not be responsible for

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any errors and product damage caused by illegal operation.
Note:
Guilin Veirun Medical Technology Co.,Ltd. does not promise the products to be used for certain special
purposes, or make any implied guarantee for their marketability and applicability;
If you need the support of after-sales service, please contact Guilin Veirun Medical Technology Co.,
Ltd. or its authorized agent.

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1. Product instruction
1.1. Overview
DQ-40/DQ-80 Ultrasonic Scaler has both ultrasound system and air polishing system. It is suitable
for scaling,periodontal treatment,air polishing and root canal irrigation.It has the following
characteristics:
● Automatically identify the ultrasonic/air polishing working mode according to the handpiece
selected.
● DQ-40 panel adopts intelligent multi-touch to intelligently control the periodontal treatment
power of dental cleaning, and adopts imported pressure regulator to accurately adjust.
● DQ-80 panel adopts seven-inch touch LCD screen for function selection, concise working status.
● Titanium alloy tips have circular vibration trajectory, small amplitude of tips can achieve
painless treatment.
● In the automatic water supply mode, special chemical solutions such as hydrogen peroxide, sodium
hypochlorite and chlorhexidine can be used to improve the clinical treatment effect.
● Detachable ultrasonic handpiece and air polishing handpiece can be sterilized under high
temperature of 134℃ and high pressure of 0.22MPa.

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●The evolutionary wireless foot switch remotes the main unit, and the wired foot switch can also
be selected according to user’s needs.
●Soft LED lighting for improving clinical operation efficiency.
●The working process is fully automatic controlled by microcomputer, which is convenient and simple
to operate and high efficiency.
1.2. Structure and composition
The ultrasonic scaler is composed of functional control circuit, powder tank, air circuit, liquid
circuit, handpiece,sand blasting nozzle, ultrasonic scaler tips and foot switch (wired or wireless),
power supply and wrench.
1.3. Intended use
This device is intended use for periodontal treatment in oral clinical treatment, air polishing and
remove dental calculus, dental plaque and stains, etc. on the surface of tooth. Remove the dental
calculus and plaque in the periodontal pockets. Clean and wash the root canal.
1.4. Working principle
Use the high-frequency and high-energy vibration generated by ultrasonic wave to smash the surface
of tooth, calculus and dental stain in the periodontal pockets through the smooth working head of

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the ultrasonic scaler, and then wash away the gravel and plaque through the water mist generated by
the scaler;
Use compressed air to transport powder such as sodium bicarbonate and fine quartz from the powder
tank to the surface of tooth, and use its mechanical and chemical effects to remove residual dental
calculus and pigment on the teeth, so as to achieve the effect of polishing the tooth surface.
1.5. Contraindications
Patients with hemophiliacs.
Patients with cardiac pacemakers.
Doctors with cardiac pacemakers.
Patients with heart disease, pregnant and young children.
Patients with asthma, chronic bronchitis and other respiratory diseases.
1.6. Main technical specifications
Input Voltage: 230 V～，50/60 Hz 0.3A(DQ-40) 0.5A(DQ-80)
Supply Voltage: 25V～，50Hz 1.3A（DQ-40） 25V～，50Hz 2.8A（DQ-80）
Input Power: 35 VA（DQ-40） 100VA（DQ-80）
Wireless foot switch battery: AA batteries x 2
Tip amplitude: Minimum: 1 μm; deviation -50%. Maximum: 100 μm; deviation +50%

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Output half-excursion force: Minimum: 0.1 N; deviation -50%. Maximum: 5 N; deviation +50%
Tip vibrating frequency: 30 kHz± 5 KHz
Tip output power: 3 W～20 W
Intake Pressure: 5 bar～6 bar（0.5 MPa～0.6 MPa）
Water temperature of powder spray system: 0℃～45℃
Requirement of powder: Only applicable to powder approved by Guilin Veirun Medical Technology
Co.,Ltd.
Fuse: T2AH250V (DQ-40) T5AH250V (DQ-80)
Fuse of Voltage:T1AL250V
Weight of Main Unit: 2.1 kg（DQ-40） 2.43kg（DQ-80） Net Weight：5kg（DQ-40） 6.5kg (DQ-80)
Weight of Power Supply: 0.9kg (DQ-40) 2.0kg（DQ-80）
Dimension of Main uni(H×M×D):310mm×370mm×170mm(DQ-40)
310mm×370mm×200mm(DQ-80)
Receiving Sensitivity: -114 dB(in accordance with China National Telecommunication Law),
Receiving frequency: 2.4G-2.5G
Wireless foot switch: transmission frequency: 2.412GHz-2.462GHz, modulation type: GFSK, Max.
Radiation power: 12dbm
Software Version: V1

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1.7. Security Classification of Device
Operating mode: continuous operation
Type of protection against electric shock: Class I equipment
Degree of protection against electric shock:Type B applied part
Degree of protection against ingress of water: main unit (IPX0), wired foot switch (IPX1),
wireless foot switch(IPX4)
Degree of safety of application in the presence of a Flammable Anesthetic Mixture with air, Oxygen
or Nitrous Oxide: devices of Non-AP, APG type
1.8. Working environment
a）Ambient temperature: 5℃～40℃
b）Relative humidity: ≤80%
c）Atmospheric pressure: 70kPa～106kPa
d）Temperature of Cooling liquid: 5℃～25℃
1.9. Side effects, adverse events and measures
If any unexpected action occurs to the device when it is used, please cut off the power switch of
the device immediately to stop the device to ensure safety. Pay attention to that the tip needs enough
water to dissipate heat when using device, otherwise it may be burns. Please stop using the device

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immediately and make corresponding diagnosis and treatment in case of burns.
2. Production Installation
2.1. Main Unit Front & Rear Schematic Diagram of DQ-40
Figure 1 Front Schematic Diagram （DQ-40）
Figure 2 Rear Schematic Diagram
(DQ-40)

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1、Ultrasonic handpiece
2、Operation panel
3、Air polishing handpiece
4、Air pressure control knob: adjust the air pressure under air polishing mode
5、Powder tank
6、Powder flow control knob
7、Water bottle
8、Air/Water separator
9、Air intake
10、Fuse
11、Socket for DC power adapter
12、Wired foot switch socket
13、Power switch
14、Check valve quick coupling

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2.2. Operation Panel of DQ-40
Figure 3 Operation Panel of Main unit(DQ-40)

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a) POWER: power slider, under the mode of cleaning: slide it for setting power;
under the mode of powder spray: slide it for setting air pressure.
b) Liquid: water volume adjustment slider
c) Mode selection area:
G: Scaling
P: Periodontal treatment
E: Root canal irrigation
A:Air polishing
（Intelligent recognition after taking the air polishing handpiece, no need for manual
selection）
C: Air polishing pipe cleaning

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2.3. Main Unit Front & Rear Schematic Diagram of DQ-80
Figure 4 Front Schematic Diagram(DQ-80)
Figure 5 Rear Schematic Diagram(DQ-80)

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1、Ultrasonic handpiece
2、Display panel
3、Air polishing handpiece
4、Powder tank
5、Powder flow control knob
6、Water bottle
7、Air/Water separator
8、Air intake
9、Fuse
10、DC power supply socket
11、Wired foot switch socket
12、Power switch
13、Check valve quick coupling

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2.4. Touch Panel (DQ-80)
Figure 6 Ultrasonic system main interface (DQ-80)

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Figure 7 Air polishing system main interface (DQ-80)