Morita Signo T100 User manual

SignoT100
DentalTreatment Unit
Operation Instructions
Thinking ahead. Focused on life.

1
TUA20
󱷦Introduction 6
󱷦1 Installation 8
1.1 Installation 8
1.2 Preparation 8
1.3 Connection of instruments 9
1.4 Installation of filters 9
󱷦2 Part names 10
2.1 Chair 10
2.2 Operation panel 11
2.3 Foot control 12
2.4 Accessories 12
Contents
Thank you very much for purchasing the Signo T100.
Be sure to read these operation instructions completely and observe the method of use and precautions before use in order to
fully utilize the functions of this equipment, to use it eectively, and to use it safely and without harm to people.
Read this operation instructions carefully before use. Keep the operation instructions close to this unit for future reference.
■Trademarks and registered trademarks
The names of companies, products, services etc. listed in these operation instructions are the trademarks or registered trade-
marks of the respective company.

2TUA20
󱷦3 Actions before and after use 13
3.1 Preparation before use 13
3.1.1 Water/air supply and main switch 13
3.2 Interruption/completion of use 14
3.3 Storage 15
󱷦4 Method of operation 16
4.1 Precautions when operating the chair 17
4.1.1 Precautions when operating the chair 17
4.1.2 Safety switch 18
4.2 Operation panel 19
4.2.1 Operation switch 19
4.3 Chair 22
4.3.1 Manual chair operation 22
4.3.2 Automatic movement of chair 23
4.3.3 Cordless foot control 27
4.3.4 Headrest height and angle adjustment 28
4.3.5 Armrest 30
4.4 Tray 31
4.4.1 Tray 31
4.4.2 Over-the-patient tray type 33
4.5 Instrument holder 35
4.5.1 Doctor-side holder 35
4.5.2 Assistant-side holder 36
4.6 Instruments 38
4.6.1 Water tank 38
4.6.2 Water supply rate adjustment 39
4.6.3 Air turbine handpiece 40
4.6.4 Micromotor 42
4.6.5 Threeway syringe 45
4.6.6 Vacuum syringe 50

3
TUA20
4.6.7 Saliva ejector 52
4.6.8 Ultrasonic scaler (Newtron) 53
4.6.9 Ultrasonic Scaler (Solfy) 56
4.7 Unit 59
4.7.1 Part names 59
4.7.2 Warmer 60
4.7.3 One-touch connectors (water supply/air supply) 61
4.8 Basin 63
4.8.1 Rinsing of the basin 63
4.8.2 Cup water supply 64
4.9 Operating light 65
4.9.1 Basic operation 65
4.9.2 Setting 66
4.10 Other settings 67
4.10.1 Countdown timer 67
4.10.2 Display while instruments are in their holders 68
4.10.3 Common settings 71
4.10.4 Individual user settings 73
󱷦5 Caring for the unit 80
5.1 Everyday maintenance (before treatment) 81
5.1.1 Flushing of residual water 81
5.2 Everyday maintenance (between patients) 85
5.2.1 Vacuum syringe and vacuum tube rinsing 85
5.3 Everyday maintenance (after use) 86
5.3.1 Cleaning the vacuum filter 86
5.3.2 Cleaning the basin 87
5.3.3 Vacuum syringe disassembly and cleaning 90
5.3.4 Disassembly and cleaning the saliva ejector 93
5.4 Maintenance as required 95
5.4.1 Cleaning the automatic filler 95
5.4.2 Cleaning the holder top cover 96
5.4.3 Cleaning other parts 96

4TUA20
5.5 Wiping with disinfectant ethanol 97
5.5.1 Ethanol wipable part 97
5.5.2 Wiping procedure 98
5.5.3 Instrument wiping 99
5.5.4 Wiping the leather seat 99
5.6 Autoclave sterilization 100
5.6.1 Sterilization the parts 100
5.6.2 Sterilization procedure 101
5.6.3 Instrument sterilization 101
5.6.4 Other sterilization 102
5.7 Other cleaning methods 103
5.8 Monthly maintenance 104
5.8.1 Amalgam separator 104
5.8.2 Spittoon valve 104
5.8.3 Cleaning inside the drain trap 105
5.8.4 Cleaning the oil collector 107
5.8.5 Checking the vacuum tank 107
5.9 Every 6 months maintenance 108
5.9.1 Cleaning the vacuum tank 108
5.10 Annual maintenance 110
5.10.1 Filter cartridge eplacement 110
󱷦6 Maintenance and inspection 114
6.1 Replacement of consumable parts 114
6.1.1 List of consumable parts 115
6.1.2 Parts replacement for threeway syringe 117
6.2 Daily inspection by the user 118
6.2.1 Startup inspection 118
6.2.2 Shutdown inspection 118
6.3 Regular maintenance inspection 119
6.3.1 Maintenance and inspection by the user 119
6.3.2 Outsourcing maintenance and Inspection to a contractor 120
6.4 After-sales service and contact information 120

5
TUA20
󱷦7 If problems arise 121
7.1 Items to be checked before requesting repair 121
7.2 Error display 122
7.3 Information 122
7.4 Fuse 123
󱷦8 Warranty and repair 124
8.1 Warranty of this product 124
8.2 Warranty card 124
8.3 Repair 124
8.3.1 Before requesting a repair 124
8.3.2 Requesting a repair 124
8.3.3 Spare part maintenance period 124
󱷦9 Disposal of the medical device 125
9.1 Disposal of this product 125
󱷦10 General information 126
10.1 Specifications 126
10.2 Symbols 127
10.3 EMC Electromagnetic Compatibility 128
10.4 EC DECLARATION OF CONFORMITY 131

6TUA20
Attention Customers
Attention Dealers
Preventing Accidents
Please be to sure receive a full explanation of how to handle each item based on the operation instructions supplied with the
product. After confirmation, fill in the Warranty Card with the clinic name and address and telephone number, sign it and hand
over a copy to the dealer.
After completion of installation, explain how to handle each item to the user based on these operation instructions in order to
ensure safety.
After the explanation, ask the doctor to fill in the name of the clinic and address, telephone number, signature on the Warranty
Card, then add your own name and hand the card to the doctor. A copy of the warranty card (manufacturing site copy) must be
sent to J. MORITA TOKYO MFG. CORP.
Most operation and maintenance problems result from insucient attention being paid to basic safety precautions and not being
able to foresee the possibilities of accidents.
Problems and accidents are best avoided by foreseeing the possibility of danger and operating the unit in accordance with the
manufacturer’s recommendations. After carefully reading the warnings and precautions on each page, “Contraindications/Prohibi-
tions” and “Precautions for Use (Safety and Hazard Prevention) of Electric Medical Devices”, the equipment must be operated
with the utmost caution to prevent either damaging the equipment itself or causing bodily injury.
The degrees of harm or damage that may occur when this content is ignored and incorrect use occurs are categorized
according to the following.
Introduction
List of Safety Symbols
Indicates something that is expected to cause severe bodily injury (death/serious injury etc.) and
damage to the equipment if handled incorrectly.
Indicates something that is expected to cause minor injury and damage to the equipment if
handled incorrectly.
This symbol alerts the user to a warning/precaution.
This symbol alerts the user to something that is prohibited.
This symbol alerts the user to instructions and content which must be followed.
This symbol alerts the user to pay attention to high temperature.
This symbol alerts the user to a dangerous voltage.
The user (e.g., healthcare facility, clinic, hospital etc.) is responsible for the management, maintenance, and use of medical de-
vices.
this equipment must only be used by dentists and other legally licensed professionals.
Please do not use this equipment for purposes other than dental practice.

7
TUA20
Introduction
Disclaimer
■Be aware that we cannot assume responsibility for the following (1)-(7).
(1) faults/injury resulting from repairs made by personnel not authorized by MORITA,
(2) any changes, modifications, or alterations to our products,
(3) faults/injury sustained by the use of products or equipment made by other manufacturers if not supplied by MORITA,
(4) faults/injury due to maintenance/repairs using spare parts other than genuine parts specified by MORITA,
(5) faults/injury due to failure to observe the precautions and follow the methods described in these operation instructions.
(6) faults/injury due to ambient conditions deviating from the conditions for use of this equipment such as the power supply
and installation environment described in these operation instructions.
(7) faults/injury due to natural disasters such as fire, earthquake, flood, lightning etc.
■Attach the handpiece or syringe specified by us to the chair unit and do not use parts other than those specified by us. When
attaching/connecting parts other than those specified by us, there is a danger that the part may become disconnected and fly
out during use. Be aware that we cannot assume responsibility for faults in our products or injury or health problems if they
arise under such circumstances.
■The working life (number of years of use) is 10 years (by self-certification) conditional upon regular maintenance and inspection
being carried out after shipment.
■The working life for the safety and maintenance of each part is described in “Safety Note for Users of Dental Treatment Units
(Issued by the Japan Dental Machine Manufacturers Association)” supplied with this device. Safety checks, checks on whether
functionality has diminished and/or maintenance should be conducted before the end of the working life.
■Always ensure that a supply of tap water is connected to this equipment.

8TUA20
1 Installation
Installation of this product should be carried out by a specialist technician (by MORITA CORP. or by a company
designated by us).
The installation must be in accordance with the supplied installation control standard.
• There is a danger of accidents and faults due to unforeseen circumstances.
Always ensure that this product is fixed to the floor using an appropriate method (stated in the supplied installa-
tion control standard).
• If not properly fixed, there is danger that the product will topple over and cause an accident and fault.
Do not use a power supply other than one of the stipulated power supply frequency [Hz], voltage [V], and permis-
sible current [A] (or power consumption).
Always ensure that a dedicated power supply circuit is provided for each unit and avoid sharing the power supply
with other appliances and avoid a common/branching power supply.
• There is a danger of accidents and faults such as fire/electric shock etc.
Do not locate the unit where it is likely to get wet or in a location that gets wet.
• There is a danger that a short circuit or overheating may occur and cause a fault or accident such as fire/electric
shock.
Do not install in a location where chemicals are stored or where gas is generated.
• There is a danger of accidents and faults such as fire/electric shock etc.
Do not position the power cord, ground wire, or foot control cable in a location where damage may easily occur
(door, passageway etc.).
• There is a danger of accidents and faults such as a short circuit/electric shock etc.
Do not install the unit in an unstable location, such as on a slope or on a site subject to vibrations or impacts.
• This may cause a fault.
Do not install this unit in a location where there is a possibility of adverse eects occurring due to atmospheric
pressure, temperature, ventilation, sunlight, dust, salinity, sulfur/ozone in the air etc.
• This may cause a fault.
Do not install this unit in the vicinity of equipment that generates electromagnetic waves such as communication
equipment, elevators etc.
• This may cause a malfunction.
Keep heaters away from the device. Also, make sure that it is not exposed to warm air directly.
• Heat softens and expands the tube, causing breakage or other damage.
Do not install this unit in a location which does not meet the working environment conditions stipulated below.
1) temperature: 10-35°C
2) RH: 30-75% (without condensation)
3) Air pressure: 700-1060 hPa
• This may cause a fault.
1.1 Installation
1.2 Preparation
Use tap water to supply the water line of the main unit.
• The use of cleansers, industrial water, unhygienic water etc. may damage the patient's health.
Moreover, this may damage the pipes inside the main unit and may cause a fault.

9
TUA20
1 Installation
1.3 Connection of instruments
Connect the main tube of each instrument before starting use.
• An inadequate connection may cause a water or air leak. If a connector is pushed at an angle or if it is forcibly
turned and bent, there is a danger of damage.
Keep each instrument in its holder when not in use.
• An accident/fault may occur due to unforeseen circumstances during operation of the vacuum equipment/instru-
ments.
Connect the main tube to the tray, assistant-side holder, and unit, and put the instruments in their holders. Refer to the following.
• For each main tube connection >> Supplied installation control standard
• For the syringe case/nozzle of the threeway syringe connection >> pp.45-49
• For the vacuum syringe/saliva ejector >> pp.50-52
• For various instrument connections >> see the operation instructions supplied with each product
1.4 Installation of filters
Before commencing use, always ensure that filters are fitted to each part.
• Failure to install filters or improper installation may lead to a drop in performance, faults/pipe obstruction etc.
Each part is equipped with a filter to protect the inner parts from contamination and foreign matter.
For how to install, refer to corresponding items in “5. Caring for the Unit” of these operation instructions.
1. Vacuum filter for vacuum pipeline
2. Vacuum filter for saliva ejector Option
3. Basin filter
4. Drain trap filter
5. Muer sponge
6. Filter cartridge (for water) Option
7. Filter cartridge (for air) Option

10 TUA20
2 Part names
Operating light
Basin
Assistant-side tray
Headrest
B
B
A
Tray
Contour seat
Foot control
Backrest
2.1 Chair
A
A
A
A
A
A
A
A

11
100
TUA20
2 Part names
󱷦Assistant-side operation panel
Operating light ON/OFF switch >> p.65
Vacuum syringe suscion swich >>p.50
Cup water supply switch >> p.64
Basin rinsing manual swich >> p.63
Automatic operation switch
Operation switch >pp.19-20 Countdown timer switch> p.67
󱷦Doctor-side operation panel
Panel display
Automatic operation
switch >> pp.23-24
Manual operation switch >> p.22 Up/Down/Left/Right keys Enter key
2.2 Operation panel

12 TUA20
2 Part names
Backrest raise/lower lever
Chair raise/lower lever
Pedal guard Option
Pedal
2.3 Foot control
2.4 Accessories
Tray paper 1 set Air nozzle (for removing spray solution) 1
Paper cup 1 set Protection sheet 3 sheeet
Top for paper cup 1 set Operation instructions 1 copy
Spare fuse 1 set Installation instructions 1 copy
Dedicated cleaner for cleaning 1 bottle Warranty Card 1 copy
Other accessories for each instrument are included.

13
㼃㻭㼀㻱㻾 㻭㻌㻵㻌㻾
23(1
&/26(
TUA20
3 Actions before and after use
3.1 Preparation before use
Use this unit in the following environment.
Temperature: 10-35°C, humidity: 30-75%RH (without condensation), air pressure: 700-1,060hPa
󲄄When using equipment that has not been used for a while, always be sure to check that the equipment operates normally and
safely prior to use.
Refer to the various operation instructions for details of handling the air turbine handpiece, micromotor handpiece, operating light
etc. (separate volumes).
3.1.1 Water/air supply and main switch
1
2
Press the main switch of the chair. The power comes ON.
The power goes OFF automatically if the chair has not been operated for a
certain period of time.
(= automatic power OFF function: initial setting is 120 minutes)
Water Supply Valve Air supply valve
Open the water supply/air supply valves
Turn the power ON
ON
When power is ON, do not subject the main unit to impacts or vibra-
tion.
• Accidents and faults due to unforeseen circumstances may occur.
When switching the power ON, check that the switches for opera-
tion of the device such as Up/Down, Upright/Reclining positions of the
chair are not ON.
• The device may suddenly start to move and there is the risk of injury.
Automatic power OFF function
>> p.71
Open the valve cover. Option
Lower the water supply valve/air supply valve lever in the direction of the
arrow and open the water supply/air circuits in the chair.
Valve cover Option

14
㼃㻭㼀㻱㻾 㻭㻌㻵㻌㻾
23(1
&/26(
TUA20
3 Actions before and after use
3.2 Interruption/completion of use
1
2Closing the water supply/air supply valves
Raise the water supply valve/air supply valve lever in the direction of the ar-
row and close the water supply/air circuits to the chair.
Close the cover.
Press the main switch of the chair.
The power goes OFF.
Turn the power OFF
OFF
Always turn the main switch OFF and close the water supply valve when treatment has been completed, when
the device is not used for a long time, or when there is a malfunction/abnormality.
• Accidents and faults/problems such as fire due to a short circuit and water leakage may occur.
Ensure that all wiring, tubes etc. are connected when supplying power and water/air to the main unit.
• Failure to do so may result in accidents and faults due to a short circuit, heat generation, water leaks etc.
Do not expose the power supply to water or leave dust adhering to it.
If there is a water leak, turn the main switch OFF, stop using the device, wipe away moisture and dry thoroughly
before resuming use.
If there is adhering dust, turn the main switch OFF and wipe dust o with a dry cloth etc.
• If use of the unit is continued while there is an abnormality, accidents and faults such as fire and electric shock
due to a short circuit, heat generation etc. may occur.
󱷦When use is interrupted, after completion of treatment
Water supply valve Air supply valve

15
TUA20
3 Actions before and after use
3.3 Storage
Observe the following storage/transportation conditions when storing/transporting the main unit.
1) Temperature:-10-70°C
2) Humidity: 10-85% RH (without condensation)
3) Air pressure: 700-1,060hPa
4) Do not install the unit in an unstable location, such as on a slope or on a site subject to vibrations or impacts.
5) Do not install this unit at a site where there is a possibility of adverse eects occurring due to atmospheric pressure, tempera-
ture, ventilation, sunlight, dust, salinity, sulfur/ozone in the air etc.
• Failure to comply may cause a fault.
If a fault or an abnormality occurs, always be sure to turn the main switch OFF and shut o the water and air supplies.
• when the water supply does not stop such as with the failure of an automatic filler
• when replacing the filter cartridge
• when a localized water leak is detected
• when there is a failure/repair request
• when there is a disaster such as an earthquake
󱷦In event of a fault or abnormality

16 TUA20
4 Method of operation
Do not place objects or bring fingers, feet, or footwear near to movable parts such as the seat and backrest hinge of the
main unit. (refer to the List of Precautions)
• There is a risk that items will be caught during operation and accidents such as injury and damage/faults may occur.
Do not place heavy objects on the edges of the seat/backrest/headrest or on the light/tray etc. and do not apply exces-
sive forces to these areas.
Avoid behavior such as standing/jumping on the main unit.
• There is a danger of the main unit toppling over or incurring damage and causing an accident or fault.
Do not spill liquid inside the main unit and do not insert easily combustible items and metals.
• If the unit continues to be used as is, there is a danger of accidents and faults such as fire/electric shock etc.
Do not place a heat source such as a heater near the main unit.
• There is a risk of deformation and damage to the main unit and rupture of the piping due to residual air pressure.
Observe the following points during operation of the main unit and refer to the “List of precautions” in the next section
to ensure safety.
1) Apart from doctors and assistants, no-one should operate the main body without permission (as a mischievous prank
etc.)
2) Keep an eye on patients (especially infants and the elderly)
3) Do not allow patients to adopt a dangerous posture (put their legs on either side of the seat, stand on the seat, kneel
on the seat, sit while wearing footwear such as heels and slippers etc.)
4) Do not let movement/posture exert a heavy burden on patients (such as a sudden headrest operation for patients with
a cervical vertebrae disorder or adopt a supine posture while suering back pain etc.)
5) Do not allow hands, parts of the body/belongings etc. to come close to the movable parts of the main unit and vicin-
ity (do not allow the patient to grasp the tray arm, place hands at the base of the backrest, sit with a phone in their
pocket, etc.)
6) Do not allow more than one patient on the seat (holding a child etc.)
7) Do not let anyone unrelated to treatment enter the surrounding area (such as a child approaching/touching the unit)
8) Do not move the small tray etc. close to the surrounding walls/windows/equipment/appliances etc. (collision may
occur during operation etc.)
9) Do not behave in a way considered to be dangerous
10) Do not operate the chair in a situation that is considered to be dangerous
• There is a danger of accidents causing injury etc., damage/faults occurring.
If there is a risk of injury or a collision during automatic operation of the main unit, carry out the following stop procedures
immediately.
(A) Step on the foot pedal
(B) Operate the manual operation lever (either up, down, upright, or reclined)
(C) Turn the main switch OFF
• There is a danger of accidents causing injury etc., damage/faults occurring.
If a patient uses a pacemaker, do not simultaneously use the ultrasonic scaler, electrocautery scalpel and root
canal length measuring instrument.
•
The pacemaker may malfunction and damage the patient’s health.
Always be sure to turn the main switch OFF when using an electrocautery scalpel near and around the main unit. Re-
frain from using devices generating electromagnetic waves such as cell phones etc.
• Malfunctions arise due to electromagnetic waves and an accident/fault may occur due to unforeseen circumstances.

17
TUA20
4 Method of operation
4.1 Precautions when operating the chair
Always carry out a safety check before operating the chair (automatic/manual). In particular, take care to avoid touching or pinching
the patient and surrounding instruments etc. by following the precautions shown in the figure below.
Operating light
Configuration (pay attention to
contact)
Arm joints
(pay attention to
pinching)
Unit
(Don't lean)
Around the assistant-side
holder (be careful not to let
the patient sit over the side of
the unit)
Backrest- Unit
(pay attention to pinching)
Unit lower part- Piping pit sur-
roundings
(pay attention to pinching)
Part of seat
(be careful to ensure that the
patient does not put their legs
on either side of the seat, or
put their bag near the unit)
Seat
(do not stand on top, do not
sit on the edge, and be careful
not to apply load)
Tray/holder configuration
(pay attention to contact)
Around the headrest movable
part
(pay attention to pinching)
Release lever/release button
(pay attention to sudden
operation)
Chair lower part
(pay attention to
pinching)
Backrest- seat
(pay attention to pinching)
4.1.1 Precautions when operating the chair

18
SAFETYSW
SEATDOWN
SAFETYSW
SEATDOWN
SAFETYSW
BACKRESTUP
TUA20
4 Method of operation
2) While the chair is descending or the backrest is
goinrg up, the assistant-side arm rises up.
3) While uprighting, the assistant-side arm rises up.
1) While the chair is descending, the base cover is
pushed from above.
4.1.2 Safety switch
If any of the following situations arise during automatic operation, the safety switch is activated and the system stops automatically.
The display shows that the system has automatically stopped or the safety lock is on.
Check the relevant part, remove the obstruction then resume use.
󱷦Automatic shutdown using the safety switch