NSK ENDO-MATE DT2 User manual

1
English
English
Contents
1. User and Indications for Use ................... 2
2. Precautions for Handling and Operation ... 2
3. Product Description ............................... 6
3–1 Package contents ���������������������������������������� 6
3–2 Control unit, motor handpiece ����������������������� 7
3–3 Control panel ����������������������������������������������� 8
4. Preparation for Use .............................. 12
4–1 Connecting AC adaptor ������������������������������� 12
4–2 Charge (If the battery is used) ��������������������� 12
4–3 Attaching barrier film ��������������������������������� 13
4–4 Connecting and disconnecting the motor
handpiece ������������������������������������������������� 13
4–5 Connecting and disconnecting the contra
angle head ������������������������������������������������ 14
4–6 Inserting and removing the file �������������������� 15
4–7 Check before treatment ������������������������������ 16
5. Operation Procedure ............................ 18
5–1 Standard operation ������������������������������������� 18
5–2 Auto reverse function ��������������������������������� 19
5–3 Programs �������������������������������������������������� 21
5–4 Alarm sound volume control ������������������������ 21
5–5 Initialization of program (factory-set
configuration) �������������������������������������������� 22
6. Post-use Maintenance .......................... 23
6–1 Preparation for maintenance ����������������������� 23
6–2 Cleaning and disinfection ���������������������������� 23
6–3 Lubrication ������������������������������������������������ 28
6–4 Sterilization ����������������������������������������������� 28
6–5 Storage ����������������������������������������������������� 29
7. Maintenance ........................................ 30
7–1 Battery refresh ������������������������������������������ 30
7–2 Changing the battery ���������������������������������� 31
7–3 Periodical Maintenance Checks ������������������� 32
8. Troubleshooting ................................... 33
8–1 Error code ������������������������������������������������� 33
8–2 Problems and actions ��������������������������������� 34
9. After-sales Service ............................... 36
9–1 Warranty ��������������������������������������������������� 36
9–2 Spare parts list ������������������������������������������ 36
9–3 Option parts list ����������������������������������������� 36
9–4 Disposing product �������������������������������������� 37
10. Specifications ...................................... 38
10–1 Specifications �������������������������������������������� 38
10–2 Classification of equipment ������������������������� 39
10–3 Operation principle ������������������������������������� 39
10–4 Symbol ����������������������������������������������������� 40
11. EMC Information (Electromagnetic
Compatibility Information) .................... 41

2
1 User and Indications for Use
User: Qualified professional (dentist)
Indications for use: Root canal enlargement
2 Precautions for Handling and Operation
Please read these precautions carefully and use only as intended or instructed�
Safety instructions are intended to avoid potential hazards that could result in personal injury or
damage to the device� Safety instructions are classified as follows in accordance with the seriousness
of the risk�
Class Degree of risk
DANGER Hazard that could result in personal death or serious injury if the safety
instructions are not correctly followed�
WARNING Hazard that could result in serious injury or damage to the device if the safety
instructions are not correctly followed�
CAUTION Hazard that could result in light or moderate injury or damage to the device if
the safety instructions are not correctly followed�
NOTICE General product specification information highlighted to avoid product
malfunction and performance reduction�
DANGER
●Use the specified battery for this product� Never use any other battery than those that NSK
specifies�
●Do not attempt to disassemble the product nor tamper with the mechanism except as
recommended by NSK in this operation manual� This may result in an injury, electric shock or fire�
●Do not handle the AC adaptor and motor cord with wet hands� Wet hand contact with electricity
may result in an electric shock�
WARNING
●Do not use AC adaptor other than genuine products made by NSK� Use of other cords may result
in electric shock, fire or breakdown� Do not connect any other accessories that are not specified
by NSK�
●If you find battery fluid or deformation, breakage or partial discoloring of the control unit casing,
immediately stop use and contact your authorized NSK dealer� Continued use may result in electric
shock or fire�
●If there is an abnormality such as smoke or smell of burning plastic from the product, turn off the
power immediately, unplug the power cord from the outlet, and contact your dealer� Continued use
may result in an electric shock or fire�

3
Precautions for Handling and Operation
English
WARNING
●If the leaking battery fluid gets into your eyes, immediately wash eyes thoroughly with clean water
and see your doctor� Failure to do so may result in loss of sight�
●If the battery fluid leaks and adheres to skin or clothing, immediately wash the exposed skin
thoroughly with clean water and completely wash away the fluid� Failure to do so may result in
skin complications�
●This product (except for contra angle head handpiece) is not waterproof� To prevent electric shock
or fire due to a short-circuit or rusting, do not splash water or chemicals on it� If they are on the
product, wipe them off immediately�
●Do not operate close to patients with cardiac pacemakers as there is a danger that it may affect
the pacemaker�
●Do not allow any impact on to the product� Dropping may result in an injury and may cause
overheating or fire due to failure of the internal component�
●If the product has not been used for a long period, remove the battery from the product to avoid
fluid leak�
●When installing the product, provide space of approximately 10 cm around the control unit for
easy access to the inlet and the power cord�
●The system may present a possibility of malfunction when used in the presence of
electromagnetic interference wave� Do not install the system in the vicinity of the device which
emits magnetic waves�

4
Precautions for Handling and Operation
CAUTION
●When operating the product always consider the safety of the patient�
●Do not use other than by the users or for the intended uses noted in this manual�
●Observe the allowable rotation speed and specified torque that the file manufacturer specifies for
use�
●Operators and all others in the area must wear eye protection and a mask when operating this
product�
●If the product functions abnormally during using it, stop using the product immediately and
contact your authorized NSK dealer�
●This device is for indoor use only�
●Keep the control unit on a level surface�
●Do not use or leave the product in a high-temperature environment such as under strong direct
sunlight, in a car under a blazing sun, by a fire, or near a stove� This may cause overheating or fire
due to failure of the internal circuit�
●Prior to clinical use, check the product by rotating it for looseness, vibration, noise and
overheating� If any abnormalities are found, stop using the product immediately and contact your
authorized NSK dealer�
●Perform maintenance according to “6 Post-use Maintenance” when using the product for the first
time after purchasing or repairing�
●Before changing the contra angle head or File, turn off the power of the control unit� Changing
with the power kept on may cause unintended rotation if the motor handpiece ON/OFF button is
accidentally pressed�
●Pay attention to the direction of the battery when setting� Forcible setting in the wrong direction
may cause damage and fluid leakage due to a short circuit�
●Do not allow conductive materials such as wires, safety pins, etc�, to enter into the battery case�
This may result in overheating or fire due to a short-circuit�
●If chemical, solvent or antiseptic solution is deposited on this product, immediately wipe it away�
Discoloration or deformation may occur if left as it is�
●The end user shall be responsible for any judgment that relates to the application of this product
to a patient�
●Users are responsible for the operational control, maintenance and continual inspection of this
product�
●ENDO-MATE DT2 needs special precautions regarding EMC and needs to be installed and put into
service according to the “11 EMC Information (Electromagnetic Compatibility Information)”�
●Portable and mobile RF communications equipment can affect ENDO-MATE DT2�
●The use of ACCESSORIES, transducers and cables other than those specified, with the exception
of transducers and cables sold by the manufacturer of ENDO-MATE DT2 as replacement parts for
internal components, may result in increased EMISSIONS or decreased IMMUNITY of ENDO-MATE
DT2�
●ENDO-MATE DT2 should not be used adjacent to or stacked with other equipment and that if
adjacent or stacked use is necessary, ENDO-MATE DT2 should be observed to verify normal
operation in the configuration in which it will be used�

5
Precautions for Handling and Operation
English
NOTICE
●Fully-charged rechargeable battery, in general, discharge gradually over time even though it is not
used� It is recommended to recharge the battery just before use�
●When the motor handpiece stops automatically by detecting a low battery voltage, turning on the
power again after a while may not detect the low voltage immediately� This is not a failure, but due
to battery characteristics� Since the voltage drop does not coincide with the remaining battery
capacity, consider it only as a yardstick�
●Try to recharge the battery only after they have been used as much as possible� If the battery is
repeatedly used for short periods and recharged, the so-called memory effect could result in a
shorter usage time than indicated� If this happens, battery performance can be recovered by fully
draining and then fully recharging the battery several times� (This product includes a refresh mode
for this purpose�)
●The used nickel metal hydride battery is recyclable� When disposing of it do not disassemble the
battery and dispose of the product according to laws and regulations� Alternatively, return it to
your dealer�
●During vibration, the motor handpiece and the motor handpiece cord may affect computer and
LAN cable� Noise could be heard during operation near a radio receiver�
●No special training is required for this device�
●When disposing of the control unit, follow the instructions of your local government for disposal,
as they contain materials which may become industrial waste�
●When discarding the contra angle head and motor handpiece, dispose of them as medical waste�

6
3 Product Description
3–1 Package contents
No� Part Name Quantity
Control unit 1
Motor handpiece 1
Contra angle head (MP-F20R)* 1
AC adaptor 1
Handpiece stand 1
F-type spray nozzle* 1
*Included only in standard set

7
Product Description
English
3–2 Control unit, motor handpiece
No� Part Name
LCD display
Control panel
AC power cord connector socket
Motor handpiece connector socket
ON/OFF button

8
Product Description
3–3 Control panel

9
Product Description
English
No� Key Name Display Function
POWER Key -Turn on/off the power and the LCD display by
keeping pressing this key for more than 1 second�
AUTO REVERSE
Key
Select an auto reverse mode�
The key changes over to AUTO REVERSE, AUTO
REVERSE OFF and AUTO STOP each time it is
pressed� If this key is kept pressed, it is fast-
forwarded�
AUTO
REVERSE
⇒AUTO REVERSE
OFF
*No display
⇒AUTO
STOP
REVERSE Key • Switch the rotation direction of the file� The key
changes over to the forward rotation and
reverse rotation each time it is pressed�
• It can also be changed while the file is in motion�
• The alarm sounds during reverse rotation�
• Resolve the battery memory effect by turning on
the power while pressing this key� (See “7–1
Battery refresh”�)
GEAR RATIO Key • Select a gear ratio according to the contra angle
head used� The key changes over to 1:1 > 4:1 >
10:1 > 16:1 > 20:1 > 1:1, and so on each time
it is pressed�
• If this key is kept pressed, it is fast-forwarded�
• The gear ratio cannot be changed while the file
is in motion�
SPEED Key • Select the rotation speed�
• If the speed is to exceed the upper limit or fall
below the lower limit, the alarm sounds�
• The unit is “min-1”� “x10” or “x100” is displayed
depending on the rotation speed�
• If this key is kept pressed, it is fast-forwarded�
• The rotation speed can also be changed while
the file is in motion�
• Perform calibration by pressing ▽and △at the
same time� (See “4–7–1 Calibration”�)

10
Product Description
No� Key Name Display Function
TORQUE Key • Select a torque limit value� When it reaches the
maximum value, “--” is displayed�
• If the torque limit value is to exceed the upper
limit or fall below the lower limit, the alarm
sounds�
• If this key is kept pressed, it is fast-forwarded�
• The unit is “Ncm”�
PROGRAM Key • Select a program number from 1 to 9�
• If the PROGRAM key is kept pressed, it is
fast-forwarded�
• Adjust the alarm sound volume by keeping
pressing ▽and △at the same time� (See “5–4
Alarm sound volume control”�)
Volume high
Volume low
Limited off
Volume OFF: Alarm when rotating in
reverse or when torque limit value
reached
Volume low: Alarm at confirmation or
error
MEMORY key -Preset program settings (rotation speed, torque
limit value, gear ratio, auto reverse mode)� (See
“5–3 Programs”�)
-AC IN Lamp -This lamp lights, when the power is supplied from
the AC adaptor, regardless of the ON or OFF
position of the power�
-CHARGE Lamp -This lamp lights or flashes while the battery is
being charged or in the refresh mode (see “7–1
Battery refresh”), or in an error condition,
regardless of the ON or OFF position of the power�

11
Product Description
English
No� Key Name Display Function
- - Charge indicator Full charge or nearly full charge�
30% - 80% remains�
Less than 30% remains� In case of this
condition, the auto reverse function may
not activate� (See “5–2 Auto reverse
function”�)
The battery is not loaded, or the battery
voltage is extremely low� Charge the
battery�
- - - The bar graph shows the degree of load applied to
the motor while the file is in motion�
NOTICE
●Charge indicator indicates the voltage of the battery� When load is applied to the motor handpiece,
the mark of remaining amount of the battery appears to become lower�

12
4 Preparation for Use
CAUTION
●To prevent cross contamination between patients, use a disposable barrier sleeve and barrier film
that meet local regulations�
4–1 Connecting AC adaptor
Insert the jack of the AC adaptor into the AC power cord connector socket with the mark of the jack
cast down�
4–2 Charge (If the battery is used)
This product uses AC adaptor to charge the battery�
Before starting use, check the charge status of the battery� The battery status can be checked on the
charge indicator�
1 Firmly insert the AC adaptor into a power
supply�
2 The AC IN lamp lights in green�
3 The CHARGE lamp illuminates and charging
starts (battery voltage is measured and
charging starts only when necessary)� The
charge indicator on the LCD display shows
animation while charging�
* There is no need to turn on the power�
4 When the CHARGE lamp turns off, charging
has been completed�

13
Preparation for Use
English
CAUTION
●Do not connect with an outlet that does not match specifications� Doing so may cause a
malfunction�
●Since the AC IN lamp lights to indicate that the supply power is on, it does not go out even after a
charge is completed� See the CHARGE lamp to check the charging conditions�
●The charging normally takes approximately 5 hours, but it depends on the battery use conditions,
age of the battery, air temperature, and other factors�
●The temperature of the battery is measured during charging� Proper charging cannot be
preformed if the charger is placed in an environment which is subject to sharp temperature
change (next to window, subject to direct sunlight, near air outlet or fan heater)� Place it in a place
where temperature change is minimal�
●The charging may not be started in the following cases�
–The temperature of a battery is too low or too high� (less than 0°C or more than 40°C� )
–When the battery voltage is high enough (This does not mean that the battery is fully charged�)
–A battery is not connected
–The voltage of a battery is abnormal (See “8–1 Error code”�)
●Battery is automatically charged depending on conditions, even when the power is on� But when
the motor handpiece is used, charging is suspended to protect the battery�
4–3 Attaching barrier film
Apply disposable barrier film to a surface where you touch it, such as keys of the control unit, in order to
prevent cross contamination during use�
4–4 Connecting and disconnecting the motor handpiece
Connecting
1 Attach the disposable barrier sleeve to the
motor handpiece (including the cord plug)
and secure the end of the motor side of the
barrier sleeve with the barrier film�

14
Preparation for Use
NOTICE
●Use of a barrier sleeve with a width of 35 mm or greater is recommended�
2 Align the mark of the motor handpiece
cord plug with the mark of the motor
handpiece connector socket and insert the
plug until it locks�
Disconnecting
Hold the plug and pull it out� Do not twist in any direction�
CAUTION
●Be sure that there is no damage on the new barrier film and barrier sleeve before use� Do not use
it if it is damaged�
●For details of the barrier sleeve and barrier film, see the operation manual issued by manufacturer�
4–5 Connecting and disconnecting the contra angle head
Connecting
1 Align the positioning pins of the contra angle
head with the positioning slots of the motor
handpiece and insert the head until they
click� The contra angle head could be
connected with the motor handpiece at 6
adjustable head positions�
2 Attach a disposable barrier sleeve to the
contra angle head and secure the end of the
barrier sleeve with the barrier film�

15
Preparation for Use
English
Disconnecting
When removing the contra angle head, pull it out axially�
CAUTION
●Before connecting and disconnecting the contra angle head, turn off the power�
●Check that the contra angle head is securely assembled to the motor handpiece�
NOTICE
●Mount the lubricated contra angle head to the motor handpiece� Calibration cannot be performed
correctly if lubrication is not done� See “4–7–1 Calibration” for calibration�
4–6 Inserting and removing the file
Inserting
1 Insert the file until it is correctly secured in
place�
2 Depress the push button and insert the file
into the chuck until the file “notch”
mechanism engages� Release the button�
3 Confirm that the file is secure by gently
pulling and pushing the file without
depressing the push button�
Removing
Depress the push button to open the chuck and remove the file�
CAUTION
●Before mounting and removing the file, turn off the power�
●Always keep the file shank clean� Dirt or debris in the chuck could cause poor file concentricity or
low chuck retention force�
●Do not use files with problems listed below as the file may break, seize up or disengage from the
chuck�
– Bent, deformed, worn, rusted, broken, deficient file�
– File which is cracked on the edge or axis�
– Non-ISO (EN ISO) standard, or tampered file�
●When replacing files, be sure to wipe any dirt from the file insertion port surface with a dry cloth
before attaching a new file�

16
Preparation for Use
4–7 Check before treatment
Before using, rotate outside the oral cavity of the patient for checking that nothing is abnormal�
If you notice anything unusual when checking, such as rattling, vibrations, abnormal sounds, or
overheating, immediately stop usage, and contact your dealer�
1 Make sure each component is securely
connected�
2 Insert the AC adaptor into a power supply if it
is not connected�
3 Make sure the head cap (A) and union nut (B)
of the contra angle head are firmly tightened�
(A)
(B)
4 Turn on the control unit and make sure the
LED display is illuminated�
5 Calibrate as instructed in “4–7–1
Calibration”�
6 Operate the motor handpiece for 1 minute
and check for looseness, abnormal vibration,
or abnormal noise�
7 Stop the motor handpiece and check for
abnormal heating of the motor handpiece
and contra angle head surface�

17
Preparation for Use
English
4–7–1 Calibration
This function is to decrease fluctuation in the rotation speed of the motor handpiece and the difference
in torque by the contra angle head�
1 Press and hold the SPEED keys ( , )
simultaneously for 1 second or longer�
2 An alarm sounds and the LCD display shows
“CAL”�
3 Press the MEMORY key�
4 The motor handpiece starts rotating� Wait
until the motor handpiece stops and the LCD
display returns to normal�
2
1/A
3
A: Press and hold simultaneously for 1
second or longer�
If you want to stop this process, turn off the power�
NOTICE
●Mount the lubricated contra angle head to the motor handpiece� Calibration cannot be performed
correctly if lubrication is not done�
●This function is not activated unless this product is powered by the AC adaptor�
●Do not touch or apply load to the rotating shaft of the contra angle head� It obstructs accurate
measurement�
●This function cannot completely absorb the individual difference of the actual motor handpiece
and contra angle head�

18
5 Operation Procedure
5–1 Standard operation
1 Select a program number� (1-9)
2 Select the rotation direction�
Forward rotation
Reverse rotation
3 Select the gear ratio of the handpiece to be
used�
4 Set the rotation speed recommended by file
manufacturers�
5 Set the torque limit value recommended by
file manufacturers� (Only for the forward
rotation)
2
3
4
5
6
1
(Setting range)
Gear ratio Rotation speed (min-1)Torque limit (N·cm)
20:1 Reduction 100-650 0�8-6�5
16:1 Reduction 120-800 0�6-5�2
10:1 Reduction 200-1,300 0�4-3�2
4:1 Reduction 500-3,200 0�1-1�3
1:1 Drive 2,000-13,000 - -
6 Select the auto reverse mode� For details,
see “5–2 Auto reverse function”�
: AUTO REVERSE
: AUTO REVERSE OFF
: AUTO STOP

19
Operation Procedure
English
7 Press the ON/OFF button (A) to start the
motor handpiece�
(A)
There are 2 operations�
Alternate operation
Press (A) for less than 1 second: Rotation
starts
Press again: Rotation stops
Intermittent operation
Press and hold (A) for 1 second or more:
Rotates while it is pressed
Release: Rotation stop
Operation during motor handpiece rotation
Adjustable: Rotation speed, torque limit value, rotation direction
Non-adjustable: Gear ratio, auto reverse mode, program number
CAUTION
●Observe the allowable rotation speed and specified torque that the file manufacturer specifies for
use�
NOTICE
●If 10 minutes pass without operation of the ON/OFF button, the power turns off automatically
(Auto power off function)� However, the power does not turn off automatically if the motor
handpiece is in motion, even if it is not used�
5–2 Auto reverse function
When the motor handpiece starts and its load reaches approximately half of the preset torque limit value,
the alarm sounds�
The alarm sound changes when the load approaches the torque limit value�
When a further load exceeds the torque limit value, the following 3 modes can be selected:
AUTO REVERSE
The motor handpiece rotates in reverse when the torque limit value is exceeded� When the load is
removed, the motor handpiece returns to forward rotation automatically�
Load within the torque
limit value
Forward Rotation
Further loading
beyond the preset
torque limit value
If the load is kept applied, the file
will rotate in reverse.
When the load is removed,···
Reverse Rotation Forward Rotation