Morita Signo T500 User manual

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TUA60/TUA70
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󱷦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 Type 10
2.2 Tray Type 12
2.3 Foot control 14
2.4 Accessories 15
Contents
Thank you very much for purchasing the Signo T500.
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 companies.

2TUA60/TUA70
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󱷦3 Actions Before and After Use 16
3.1 Preparation Before Use 16
3.1.1 Water/Air Supply and Main Switch 16
3.2 Interruption/Completion of Use 17
3.3 Storage 18
󱷦4 Method of Operation 19
4.1 Precautions When Operating the Chair 20
4.1.1 Precautions When Operating the Chair 20
4.1.2 Safety Switch 21
4.2 Operation Panel 23
4.2.1 Display Panel 23
4.2.2 Assistant-side Operation Panel 25
4.3 Chair 26
4.3.1 Manual Chair Operation 26
4.3.2 Automatic Movement of Chair 27
4.3.3 Cordless Foot Control 31
4.3.4 Headrest Height and Angle Adjustment 32
4.3.5 Backrest Height Adjustment 34
4.3.6 Armrest 35
4.4 Tray 36
4.4.1 Tray 36
4.4.2 Over-the-Patient Tray Type/Floor-mounted Tray Type 38
4.4.3 Cart 40
4.4.4 Auxiliary Tray 41
4.5 Instrument Holder 42
4.5.1 Doctor-side Holder 42
4.5.2 Assistant-side Holder 43
4.6 Instruments 46
4.6.1 Water Tank 46
4.6.2 Water Supply Rate Adjustment 47
4.6.3 Foot Control Operation (extended function) 48
4.6.4 Common Settings for Instruments 49
4.6.5 Air Turbine Handpiece 50

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TUA60/TUA70
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4.6.6 Micromotor 53
4.6.7 Threeway Syringe 58
4.6.8 Vacuum Syringe 62
4.6.9 Saliva Ejector 64
4.6.10 Ultrasonic Scaler (Newtron) 65
4.6.11 Ultrasonic Scaler (Solfy) 69
4.7 Unit 72
4.7.1 Part Names 72
4.7.2 Warmer 74
4.7.3 One-touch Connectors (water supply/air supply) 75
4.8 Basin 77
4.8.1 Basic Operation 77
4.8.2 Cup Water Supply 79
4.9 Operating Light 80
4.9.1 Basic Operation 80
4.9.2 Setting 82
4.10 Other Settings 83
4.10.1 Countdown Timer 83
4.10.2 Display while Instruments are in Holders 87
4.10.3 Show Display in PC Monito 91
4.10.4 Common Settings 92
4.10.5 Individual User Settings 97
󱷦5 Caring for the Unit 110
5.1 Autoclave Sterilization 110
5.1.1 Instrument Sterilization 111
5.1.2 Holder Cup Sterilization 112
5.1.3 Other Sterilization 115
5.2 Wiping with Disinfectant Ethanol 116
5.2.1 Instrument Wiping 116
5.2.2 Wiping the Leather Seat 117
5.2.3 Wiping Other Parts 118
5.3 Other Cleaning Methods 119
5.4 Everyday Maintenance (before treatment) 120
5.4.1 Flushing of Residual Water 120

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5.5 Everyday Maintenance (between patients) 125
5.5.1 Vacuum System Rinsing 125
5.5.2 Automatic Rinsing of Vacuum Tank 127
5.6 Everyday Maintenance (after use) 128
5.6.1 Cleaning the Vacuum Filter 128
5.6.2 Cleaning the Basin 129
5.6.3 Vacuum Syringe Disassembly and Cleaning 131
5.6.4 Disassembly and Cleaning the Saliva Ejector 133
5.7 Monthly Maintenance 135
5.7.1 Cleaning the Water Supply Tank 135
5.7.2 Checking and Cleaning the Vacuum Tank 136
5.7.3 Amalgam separator 138
5.7.4 Spittoon Valve 139
5.7.5 Cleaning Inside the Drain Trap 140
5.7.6 Cleaning the Oil Collector 142
5.8 Annual Maintenance 143
5.8.1 Sterapore Cartridge Replacement 143
5.9 Maintenance as Required 147
5.9.1 Cleaning the Automatic Filler 147
5.9.2 Cleaning Other Parts 147
󱷦6 Maintenance and Inspection 148
6.1 Replacement of Consumable Parts 148
6.1.1 List of consumable parts 149
6.1.2 Parts Replacement for Threeway Syringe 151
6.2 Daily Inspection by the User 152
6.2.1 Startup Inspection 152
6.2.2 Shutdown Inspection 152
6.3 Regular Maintenance Inspection 153
6.3.1 Maintenance and Inspection by the User 153
6.3.2 Outsourcing Maintenance and Inspection to a Contractor 154
6.4 After-sales Service and Contact Information 154

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󱷦7 If Problems Arise 155
7.1 Items to be Checked before Requesting Repair 155
7.2 Error Display 156
7.3 Fuse 156
󱷦8 Warranty and Repair 158
8.1 Warranty of this Product 158
8.2 Warranty Card 158
8.3 Repair 158
8.3.1 Before Requesting a Repair 158
8.3.2 Requesting a Repair 158
8.3.3 Spare Part Maintenance Period 158
󱷦9 Disposal of the Medical Device 159
9.1 Disposal of This Product 159
󱷦10 General Information 160
10.1 Specifications 160
10.2 Symbols 161
10.3 EMC Electromagnetic Compatibility 162
10.4 EC DECLARATION OF CONFORMITY 165

6TUA60/TUA70
To our Customers
To 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, address and telephone number, sign it and provide the dealer
with a copy.
After completion of installation, explain to the doctor how to deal with the various items of the unit to ensure safety, in accordance
with these operation instructions.
After the explanation, ask the doctor to fill out the name, address and telephone number fields on the Warranty Card and to sign
it, then add your own name and give the card back 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 neglecting
to assess risks.
Problems and accidents can be prevented by properly assessing risks and operating the unit in accordance with our recommenda-
tions. Carefully read the warnings and precautions listed on each page as “Contraindications/Prohibitions” and “Precautions for
Use (Safety and Hazard Prevention) of Electric Medical Devices”, and operate the unit with care to prevent either damaging the
equipment itself or causing injury.
The degree of harm or damage that may occur if you fail to heed the precautions and use the unit improperly are categorized as
follows.
Introduction
List of Safety Symbols
Improper handling may result in severe injury (death/serious injury etc.) or damage to the equip-
ment.
Improper handling may result in minor injury or damage to the equipment.
Symbols
This symbol alerts the user to a warning/precaution.
This symbol alerts the user to behavior 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.

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TUA60/TUA70
Introduction
Disclaimer
■Please 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 suitable 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 MORITA-specified handpieces and/or syringes 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 risk that the part may disconnect and fly o
during use. Be aware that we cannot assume responsibility for faults in our product, 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 over which the safety and functionality of the various parts can be maintained 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 and checks on whether functionality has diminished should be conducted during the working life and mainte-
nance should be carried out accordingly.
■Please ensure that the unit is connected to a supply of tap water.

8TUA60/TUA70
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 or 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, 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 the 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: 700-1,060 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.

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TUA60/TUA70
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/
instruments.
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. 58-61
・For the vacuum syringe/saliva ejector ☞pp. 62-64
・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 the relevant parts.
●Failure to install filters or improper installation may lead to a drop in performance, faults/pipe clogging, etc.
The filters are provided to protect the inner parts from contamination and foreign matter.
For how to install, refer to relevent items in “5. Caring for the Unit” of these operation instructions.
1. Vacuum filter for vacuum pipeline
2. Vacuum filter for saliva ejector
3. Basin filter
4. Drain trap filter
5. Muer sponge
6. Sterapore cartridge (for water)
7. Sterapore cartridge (for air) Option

10 TUA60/TUA70
2 Part Names
Operating light
Basin
Assistant-side
armrest
󱷦Contour type
Headrest
Stand unit
Stand unit
Small tray
Option
Tray
Liquid crystal display
Option
Contour seat
Foot control
Doctor-side
armrest
Option
Electric headrest
Option
Backrest
2.1 Chair Type

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TUA60/TUA70
2PartNames
Liquid crystal display
Option
󱷦Foot support type
Operating light
Leg support
Basin
Headrest
Doctor-side
armrest
Option
Tray
Assistant-side
armrest
Foot control
Chair mount unit
Chair mount unit
Foot support
Electric headrest
Option
Backrest

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2PartNames
󱷦Over-the-patient tray type
󱷦Floor-mounted tray type
2.2 Tray Type

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2PartNames
󱷦Cart

14 TUA60/TUA70
2PartNames
󱷦Part Names
Backrest raise / lower lever
Chair raise/lower lever
Hook
Automatic operation lever Option
Instrument range changeover lever Option
Instrument light ON/OFF changeover lever Option
Electric headrest operation lever Option
Pedal
Function (Fn) key Option
Micromotor forward/reverse rotation changeover
lever Option
Instrument water flow changeover lever Option
Electric headrest operation lever Option
Automatic operation lever Option
Electric headrest
operation lever
Option
2.3 Foot control
Electric headrest operation lever
Option

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TUA60/TUA70
2PartNames
2.4 Accessories
Other accessories for each instrument are included.
Tray paper 1 set MAZAK P 1 bottle
Paper cup 1 set Protection sheet 3 sheet
Top for paper cup 1 set Operation instructions 1 copy
Headrest cover 1 Installation instructions 1 copy
Spare fuse 1 set Warranty Card 1 copy
Dedicated cleaner for cleaning 1 bottle Safety notes 1 copy
Air nozzle (for removing spray solition) 1

16
(Blue light comes on)
TUA60/TUA70
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: 700-1,060 hPa
󲄄When using equipment that has not been used for a while, always be sure to check that the equipment operates nor-
mally and safely prior to use.
Refer to the various operation instructions for details of handling the air turbine handpiece, micromotor handpiece, oper-
ating light, etc. (separate volumes).
3.1.1 Water/Air Supply and Main Switch
1
①. Open the cover.
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)
Cover
Water Supply
Valve
Air supply valve
Open the water supply/air supply valves
Turn the power ON
②. 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.
ON
When power is ON, do not subject the main unit to impacts or vi-
bration.
●Accidents and faults due to unforeseen circumstances may oc-
cur.
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. 93

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TUA60/TUA70
3ActionsBeforeandAfterUse
3.2 Interruption/Completion of Use
1
2
Cover
①. Open the cover.
Closing the Water Supply/Air Supply Valves
②Raise the water supply valve/air supply valve lever in the direction of the
arrow to close the water supply/air supply line to the chair.
③Close the cover.
Press the main switch of the chair.
The power goes OFF.
(Blue light goes o)
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.
A water leak occurs, 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 o the dust with a dry cloth etc.
●If use of the unit is continued while there is an abnormality, accidents such as fire and electric shock due to a
short circuit, and faults such as heat generation etc. may occur.
󱷦When use is interrupted, after completion of treatment
Water Supply
Valve
Air supply valve

18 TUA60/TUA70
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: 700-1,060 hPa
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,
temperature, ventilation, sunlight, dust, salinity, sulfur/ozone in the air etc.
●Failure to follow these instructions may cause a fault.
If a fault or an abnormality occurs, 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 sterapore 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