Guilin Woodpecker Medical Instrument DTE User manual

Please read this manual before operating.
Industrial design patent No.: CN 201130378913.4
Apex locator
Instruction Manual

Contents
1 Introduction ................................................................................................. 1
2 Notice of installing and using the device ................................................... 5
3 Installation of the device ............................................................................. 7
4 Product function and operation ................................................................. 14
5 Trouble shooting ....................................................................................... 19
6 Disinfection, cleaning and sterilization procedure for the accessories ..... 24
8 Environmental protection .......................................................................... 28
9 European authorized representative........................................................... 28
10 After service ............................................................................................ 28
11 Symbol instruction .................................................................................. 29
12 Statement ................................................................................................. 30
13 EMC - Declaration of conformity ........................................................... 30

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1 Introduction
1.1 Foreword
Guilin Woodpecker Medical Instrument Co., Ltd. is a professional manufacturer
in researching, developing and producing dental equipment which has a wholesome
quality assurance system.
Products include ultrasonic scaler, curing light, apex locator and ultrasurgery, etc.
1.2 Description of the device
Apex locator is a supporting equipment of endodontic treatment, through the
measurement of the length of apical teeth, helping dentists to nish the endodontic
treatment.
Features of the device:
a) Equipped with clear bright LCD, clear image and dierent colors indicate the
trajectory of the le clearly.
b) Based on advanced multiple frequency network impedance measurement
technology and automatic calibrating ensures the measurements are accurate.
c) The File clip, Lip hook and Touch probe can be autoclaved under high
temperature and high pressure, avoiding cross infection eectively.
d) Battery is rechargeable, unnecessary to replace batteries repeatedly.
1.3 Model and dimensions
1.3.1 Dimensions: 138mm (length) × 77mm (width) × 107mm (height)
1.3.2 Weight: 385g

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1.3.3 Model: DPEX V
1.4 Components
1.4.1 Picture of the main unit. ( Picture 1 )

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1.4.2 Pictures of the main accessories ( Picture 2 )
Measuring wire File clip Lip hook Touch probe
Battery Adapter Tester
Picture 2
1.5 Structure
The model is composed of main unit, measuring wire, lip hooks, le clip, touch
probe, adapter, etc.
1.6 Intended use
This equipment applies to the measurements below:
1.6.1 Measurement of pulpitis, pulp necrosis, periapical periodontitis and tooth
length.

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1.6.2 Measurement of the tooth length before restoration of post crown.
1.6.3 Measurement of the tooth length of transplantation and retransplantation.
1.6.4 The device must be operated in hospital and clinic by the qualied dentists.
1.7 Contraindication
We do not advise the use of the model on patients tted with pacemakers (or other
electrical equipment) or on those patients who are advised not to use the electric
equipment (like electric shaver, electric blower) for safety reasons.
1.8 The classication of the device
1.8.1 Type of protection against electric shock: Class Ⅱequipment
1.8.2 Degree of protection against electric shock: Type B applied part
1.8.3 Degree of protection against water shock: Ordinary equipment ( IPX0 )
1.8.4 Device not suitable for being used in the presence of a ammable anesthetic
mixture with air or with oxygen or nitrous oxide.
1.8.5 Operation mode: Continous operation
1.8.6 Applied part: Touch probe, Lip hook, File clip
1.9 The main technical specications
1.9.1 Battery: 3.6V/750mAh (Model:14500)
1.9.2 Adapter (Model:DJ-0500100-A5):
Input: ~100V-240V 50Hz/60Hz 0.5-0.2A
Output: DC5V/1A
1.9.3 Consumption power: ≤0.5W
1.9.4 Screen: 4.5’’ LCD

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1.9.5 Buzzer alert: The buzzer will alert when the endo le is close to the apex.
1.9.6 Release software version: V1
1.9.7 Operation condition
a) Environment temperature: +5℃～+40℃
b) Relative humidity: 30% ～75%
c) Atmosphere pressure: 70kPa ～106kPa
2 Notice of installing and using the device
2.1 Please read the instruction manual carefully before the operation.
2.2 When the indicating bar reaches the position of the dial 0.0, and there is
"APEX" on screen, the endo file has reached the anatomical apical foramen. To
guarantee the safety, the work length is clinically obtained by subtracting 0.5-1 mm
from the length measured by the Apex locator.
2.3 The scales 0.5, 1.0 and 2.0 on the screen dial do not indicate that the distance
to the apex is 0.5 mm, 1.0 mm or 2.0 mm. It just reminds the operator that the le is
getting close to or away from the apical foramen.
2.4 If the screen bar graph suddenly makes a large movement or immediate
display ‘OVER’ in the upper part of the canal, continue slightly towards the apex so
the signal returns to normal.
2.5 In order to prevent leakage or interference between the root canal and
resulting in inaccurate measurements, dry the access cavity with a cotton pellet or
air-blower before each use.

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2.6 Use a le size adapted to the root canal diameter. The selected le is too small
for a large root canal might cause the screen digital display is not steady during the
procedure.
2.7 In order to conrm the le clip and measuring wire makes good contact, test
the wire connecting before each use(See 3.1.3).
2.8 The le clip, lip hook and touch probe are reusable. Please make sure they
are autoclaved under high pressure and high temperature before each operation. The
endo les should not be used more than 3 times.
2.9 The batteries must be taken out for storage when the device is not used for a
long time.
2.10 Please recharge the battery when low battery indicator ashes.
2.11 Please use original components, the components made by other companies
may cause inaccurate measurement or un-measurable.
2.12 Avoid the connection between the outside and inside liquid of endodontic
during measuring in order to avoid the measuring dierence.
2.13 Keep endo le and le clip away from any other metal or instruments.
2.14 To ensure that short circuits do not impair the measurements, be particularly
careful with patients tted with metal crowns or bridges. Please conrm the wetness
of the endo to ensure the reliability of the measuring. If it is conrmed that the endo
le hasn't reached the apex yet the data showed on the apex locator is too low, please
check whether the endo is too dry and conrm it with X-ray.
2.15 This device have electromagnetic interference, the patient or doctor who

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with a heart pace maker are forbidden to use this device and the device is susceptible
to other device which produces electromagnetic interference. Dentists should be
cautious about operation under such environment.
2.16 The guarantee is valid for normal usage conditions. Any disassembly will
render the guarantee void, the professionals of Woodpecker company will oer the
repair service during guarantee period.
2.17 Any modication will render the guarantee void and may cause harm to the
patient.
2.18 Only the original adapter and lithium battery could be used to this machine.
2.19 Not to position equipment to make it dicult to operate the disconnection
device.
2.20 The adapter must be connected to an appropriate power source in the
instructions.
2.21 Error in replacing lithium batteries can lead to unacceptable risks, so use the
original lithium battery and replace the lithium battery according to the correct steps
in the instructions.
3 Installation of the device
3.1 Measurement preparation
3.1.1 Insert the plug of the measuring wire into the right side socket of the unit.
Attention:
a) Please be careful to use the device, keep it stable and avoid hit. Incautious use

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will lead to the damage or the failure of the machine.
b) Measurement can not be proceeded without the complete insertion of the plug.
c) Be sure not to hit the plug. Keep the device away.
3.1.2 Insert the le clip and lip hook respectively into the two sockets of the
measuring wire. When the Apex Locator is used alone, there is no dierence
between the gray end and the white end of measuring wire [Picture 3]. But if the
Apex Locator is connected to the Endo Motor, please connect the white end with
the lip hook and the gray end is suspended.
Attention:
Be sure not to pull the wire when inserting or pulling out the the measuring wire
and the le clip. [Picture 4 (a)]
Correct operation showed as in picture 4 (b).
3.1.3 Test the wire connecting (Test before each use)
a) Press the power switch. Make sure the scene of measuring the length of the
root canal displayed on the LCD screen.
The device will shutdown automatically after 5 minutes without operation.
b) Make sure if the plug of the measuring wire is inserted into the socket correctly.