DKL L2-SOLO User manual

Form-Nr. GEN-L2SOLO
Rev. 05 / 26.05.2023
Subject to change without
notice.
L2-SOLO
L2-SOLO-S
Operating Instructions
Manufacturer:
DKL CHAIRS GmbH
An der Ziegelei 3
D-37124 Rosdorf
Germany
[phone]
[email protected]
www.dkl.de

2
Contents
Annex
> Operating Instructions DÜRR Dental Spittoon valve 3
> Operating Instructions DÜRR Dental CAS 1 Combi-Separator
> Operating Instructions DÜRR Dental CS 1 Combi-Sepamatic
> USER MANUAL FARO EVA
Symbols in the Operating Instructions 3
Symbols inside the Unit 4
Introduction 5
Electromagnetic Compatibility (EMC) 6
Safety Instructions - General 7
Technical Speci!cations 8
Media Requirements 9
Dimensions in Millimetres 11
Product Description 13
Working Properly on the L2 14
Moving the Treatment Chair 15
Putting the Treatment Unit into Operation 17
Operating Lamp LED.light EVA 18
Tray 21
Cuspidor 22
Suction System 23
Cleaning and Disinfection of the Surfaces 24
Maintenance and Inspection 27
Safety Inspections 27
Warrantee Declaration + Waste Disposal 28
EMC - Manufacturer‘s Declaration 29

3
Symbols in the Operating Instructions
WARNING"
(risk of injury)
General explanations,
without risk to
persons or objects
Thermodisinfectable Sterilisable up to the
speci!ed temperature Call customer service"
CAUTION"
(to prevent
damage occurring)
Symbols on the unit
Consult instructions for
use or consult electronic
instructions for use
ON / OFF Do not dispose of with
household waste
CE-marking with iden-
ti!cation number of the
noti!ed body
Type B application part
Manufacturing date Model (designation) Serial number
VElectrical voltage VA
AC
AHz
Electrical power con-
sumption
Current intensity Frequency of alter-
nating current
Electrical fuse
Alternating current
Foot controller
Manufacturer Medical device UDI - Product
Identi!cation

4
Symbols inside the Unit
Earth conductor connection -
Protective earth
Functional
earth
Symbols on the packaging
Transport upright; top
Permissible temperature range
Air humidity, limitation
Protect from moisture"
Do not stack"
Fragile
N
Connection point for
neutral conductor
Atmospheric pressure limitation

5
Introduction
For your safety and the safety of your patients
These operating instructions are intended to explain how to use your product. However,
we must also warn of possible dangerous situations. Your safety, the safety of your team
and, of course, the safety of your patients are very important to us.
Please observe the safety instructions!
Intended purpose
This treatment unit is used for the diagnosis and therapy of children and adults in the "eld of dentistry.
Improper use can damage the treatment unit and thus pose risks and
hazards to the patient, user and third parties.
Quali!cation of the user
The DKL treatment unit may only be used after medically, professionally and practically trained
personnel have been instructed. The development and design of the treatment unit were geared
towards the target group of dentists, dental hygienists, quali"ed dental employees (prophylaxis) and
dental assistants.
Production according to EU directive
The medical device complies with the provisions of regulation (EU) 2017/745.
0123
Responsibility of the manufacturer
The manufacturer can only be held responsible for the impact on the safety,
reliability and performance of the treatment unit if the following instructions
are observed:
> The dental unit must be used in accordance with these operating
instructions.
> If assembly, additions, new settings, changes or repair work is carried out
by DKL or trained technicians authorised by DKL or personnel of authorized
dealers trained by DKL.
> The electrical installation of the room must comply with the regulations of
the IEC 60364-7-710 standard („Erection of electrical installations in rooms
used for medical purposes“) or comply with the regulations applicable in
your country.
> The recommended annual maintenance is carried out and any repair work
in this context meets the requirements of EN 62353.
> „Repeat tests and pre-commissioning tests of medical electrical equipment
and systems – general regulations“are fully complied with.
> The national legal regulations are observed when using the device, in
particular the applicable health and safety regulations and accident
prevention measures.

6
Electromagnetic Compatibility (EMC)
Medical electrical equipment is subject to special precautions with regard to EMC and
must be installed and commissioned in accordance with the EMC instructions. DKL
guarantees that the dental unit complies with the EMC guidelines only if original DKL
accessories and spare parts are used. The use of accessories and spare parts not
approved by DKL may lead to an increased emission of electromagnetic interference or
to a reduced resistance to electromagnetic interference.
The EMC manufacturer declaration can be found on page 29.
HF communication equipment
Do not use portable and mobile HF-communication equipment (such as mobile
telephones) during operation. These can a#ect medical electrical devices.
Risks due to electromagnetic !elds
The functionality of implantable systems, such as cardiac pacemakers and
implantable cardioverter de!brillators (ICD), can be in$uenced by electric, magnetic and
electromagnetic !elds.
> Before using the product, ask the patient and user about implanted systems and
check the use.
> Perform a risk-bene!t analysis.
> Do not place the product near implanted systems.
> Do not place the instruments on the patient‘s body.
> Take appropriate emergency precautions and respond immediately to health changes.
> Symptoms such as increased heart rate, irregular pulse, and dizziness may be signs
of problems with a pacemaker or ICD.

7
Safety Instructions - General
> Before being put into initial operation, the treatment unit must be kept at room
temperature for 24 hours.
> Before each application, check the treatment unit and the instruments with cables for
damage and loose parts.
> Do not operate the treatment unit if it is damaged.
> Check the set parameters each time you restart the unit.
> Carry out a test run before each application.
> The application and timely shutdown of the system is the user’s responsibility.
> Make sure that in the event of a device or instrument failure, the treatment can be
completed safely.
> Use only original DKL fuses.
> Never touch the patient and the electrical connection at the treatment unit at the same
time.
> Do not lean on the tray or the operating lamp.
> When moving the treatment chair, the doctor‘s device, the assistant‘s device, the tray or
the operating lamp, pay attention to the patient and the practice personnel.
> Always switch o# the treatment unit before leaving the practice.
Hygiene and care before using the device
> Clean and disinfect the device immediately before or after each treatment"
> Wear protective clothing.
The treatment unit is classi!ed as an „ordinary device“ (closed device without protection
against water ingress).
The treatment unit is not suitable for use in an explosive atmosphere or in explosive
mixtures of anaesthetics with oxygen or nitrous oxide.
The treatment unit is not suitable for use in rooms with an oxygen enriched atmosphere.
Safety notes – Patient chair
> Not suitable for patients who cannot remain in a resting position due to mental or
physical disabilities.
> The patient‘s arms and legs must rest on the upholstered parts of the chair.
> Do not exceed the maximum patient weight of 150 kg.
> Do not sit on the head or foot rest of the horizontally aligned patient chair.
> Position changes must always be carried out under the surveillance of the person
giving treatment.
> Watch patients while moving the treatment chair.
> Make sure that there are no objects under the treatment chair.
Observe your country-speci!c guidelines, standards and speci!cations for
cleaning, disinfection and sterilisation.

8
Transport and storage conditions
Ambient temperature -30 to +70 °C
Relative humidity 10 to 80 %
Atmospheric pressure 500 hPA to 1060 hPa
Operating conditions
Quality and load-bearing capacity of the floor The floor must be level and horizontal according to EN
18202. Unevenness of the floor along the total length of
the chair base up to 2 mm is acceptable. The minimum
load-bearing capacity of the floor must be 0.5 N/cm2
(equivalent to approx. 500 kg/m2).
Ambient temperature 10 to 35 °C
Relative humidity 15 to 80 %
Atmospheric pressure 700 hPA to 1060 hPa
Installation site ≤ 3,000 m above sea level
The treatment unit is not suitable for operation in
hazardous areas.
Weight
L2-SOLO max. 165 kg
L2-SOLO-S max. 200 kg
Technical Specifications
Supply voltage 230V AC
Nominal voltage max. 4 A
Frequency 50/60 Hz
Fuse T 6.3 A H 250 V primary
Maximum power consumption 800 VA
Device class according to MDR (EU) 2017/745 IIa
Protection class Device of protection class I
Contamination level 2
Over voltage category II
Power cable 3x1,5 mm2
Suction control lines to the suction device 5x1,5 mm2
Potential equalisation 1x 4 mm2
Relay control line optional special function 3x1,5 mm2
Free end electrical cables above floor 500 mm
Fuse for domestic installation Circuit breaker: 16 A medium-lag
Recommendation: circuit breaker type C
Degree of protection against ingress of water Ordinary device (without protection against water ingress).
Permanently connected device. In order to avoid the risk of electric shock, this device may only
be connected to a power supply with an earth conductor.
The motors of the treatment unit are designed for intermittent operation in accordance with the
dental treatment method.
Driving motors for patient chair and backrest: duty cycle (max. 25 s „ON“ / 400 s „OFF“).

9
Media water
Water hardness 1.5 to 2.14 mmol/l = 8,4-12 dH
ph-value 6,5 to 8,5
Water !ltration on site & 100 µm
Water in$ow Pipe 10x1mm, angle valve outlet 3/8“
Water connection above $oor min. 40 mm, max. 60 mm
Water inlet pressure 2.0 to max. 6.0 bars
Water quality Cold water in accordance with local and national drinking
water regulations.
Minimum $ow rate 3 l/min
Media air
Air inlet pressure max. 7 bars
Air consumption 80 Nl/min
On-site air !ltration & 100 particles size 1 - 5 'm referred to one m3of air
Oil content & 0.5mg/m3,oil-free compressors; the compressor must suck
in hygienically perfect air.
Humidity Pressure dew point & -20 °C at atmospheric pressure
Compressed air supply Pipe 10x1 mm, angle valve outlet 3/8“
Air connection above the $oor min. 40 mm, max. 60 mm
Media Requirements
• Perform the installation according to the national installation requirements (e.g. EN 1717).
• For the reduction of microorganisms in the water supply pipe, please observe the following when laying this pipe to the
treatment unit:
- Avoid long stub lines to the treatment unit.
- Select the installation in such a way that other essential consumers (e.g. washbasin) are as far as possible
behind the connection of the treatment unit can be supplied from the same pipe.
- Avoid laying the hot water supply pipes in parallel.
• Recommendation: For the water supply of the treatment unit, install an angle valve with 2 outlets and 2 stop cocks. The
second outlet allows easy sampling of water for microbiological analysis.
Clean air and water pipes before installing the unit.
Chips and other foreign substances could be $ushed or blown into the treatment unit.
Metal chips can interfere with the function of pneumatic components. Filters are clogged by foreign substances.
• When assembling, make sure that there are no chips or other foreign substances in the pipes.
• Flush the water pipes.
• Blow out the air ducts.
• Make sure that no further foreign substances get into the pipes and ducts after rinsing or blowing out.
Before the treatment unit is installed, the microbiologically perfect water quality of the domestic water supply
should be ensured and documented in the form of a microbial count.
Sampling and microbial count should be carried out by a competent laboratory.
Connection to the public drinking water supply
When the treatment unit is equipped with a cuspidor, the bowl rinser ensures the free outlet with a separation distance
* 20 mm.

With the L2-SOLO the connections 1, 2, 3, 5 and the control line to the suction device are
not needed.
1Air: pipe min. 10x1 mm, angle valve outlet 3/8“
2Water drain DN40 HT-PP
3Suction line DN40 HT-PP
4Power cable 3x1.5 mm2
4Equipotential bonding 1x 4 mm2
4Control line to suction device 5x1.5 mm2
5Water: pipe min. 10x1 mm, angle valve outlet 3/8“
(2 outlets with 2 stopcocks)
Requirements for Supply Connections
10
Requirements for the suction system
Vacuum at supply connection min. 0,12 bar, max. 0,18 bar
Minimum suction power at supply connection *750Nl/min
Suction system Type 1: high $ow rate
wet or dry suction
Suction pipe DN40 HT-PP (polypropylene, inside diameter approx. 36.5 mm)
Water drain DN40 HT-PP (polypropylene, inside diameter approx. 36.5 mm)
Gradient Min. 10 mm per metre
Wastewater volume 3 l/min
Filter in the treatment unit maintenance interval Article number
Particle !lter water inlet 50 'm Replace annually 210623-WBG
Particle !lter compressed air inlet 50 'm Replace annually 210623-LBG
Solid particle !lter for the suction
system
Mesh size 1 mm In case of damage,
replace at least annually.
514100

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Dimensions in Millimetres
L2-SOLO-S Version with short back rest L2-SOLO-S Version with long back rest
L2-SOLO Version with short back rest L2-SOLO Version with long back rest

Dimensions in Millimetres
Treatment chair:
lowest position 570 mm
highest position 800 mm
12

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1Treatment chair, seat
2Treatment chair, back rest
3Treatment chair, double-jointed headrest
4Treatment chair, joystick
5Tray
6Cuspidor
7Operating Lamp LED.light EVA
8Treatment chair, arm rest
Product Description
L2-SOLO
Identi!cation label
L2-SOLO-S

Treating patients in a lying position gives you a clear view of the upper and lower jaw. This
optimal working posture is ensured by su<cient legroom. During lower-jaw treatments, the
patients are positioned horizontally; for treatments in the upper-jaw region the patient’s
head is slightly overstretched backwards.
The double-jointed headrest o#ers stable support for the patient’s head at the starting
point of the neck muscles. This way the patient is relaxed and does not need to constantly
correct his or her position. Treatment of patients in a lying position o#ers you an optimal
view and, consequently, optimal results.
Working Properly on the L2
14

15
Moving the Treatment Chair
Move the joystick downwards
> Treatment chair moves downwards.
Move the joystick upwards
> Treatment chair moves upwards.
Move the joystick to the left
> Back rest tilts backwards.
Move the joystick to the right
> Back rest moves to an upright position.
Tap the JoystickTwice
> Treatment chair moves to the entry /exit position.
Tap the joystick twice downwards
> Treatment chair moves to the treatment position p2.
Tap the JoystickTwice to the Left
> Treatment chair moves to the rinsing position and
back to the last position when tapping twice again.
Tap theJoystickTwice to the Right
> Treatment chair moves to the treatment position p1.
Press “p0“
> Treatment chair moves to the position for getting on/o#.
Press “p1“
> Treatment chair moves to treatment position p1.
Press “p2“
> Treatment chair moves to treatment position p2.
Press “p3“
> Treatment chair moves to treatment position p3.
Brie"y press “lp“
> Treatment chair moves to the rinsing position and after
renewed pressing back to the “last position”.
For programming the keys, move to the desired programme position manually and then keep the respective
programme key pressed for about 3 seconds until you hear a signal tone. Now you have successfully saved
your individual treatment position.
Saving programme keys p0 – p3
Press the ”lp“ key to move the chair to the rinsing position. By pressing the key “Ip” once again, the chair mo-
ves back to the previous programme position or to the manually set position. In order to programme the chair,
move it manually to the desired rinsing position and then keep the key “Ip” pressed for about 3 seconds until
you hear a signal tone. Now you have successfully saved your rinsing position.
Saving programme key lp
Programme keys at the back rest
Joystick at the chair base
Joystick

16
Moving the Treatment Chair
Manually extractable double-jointed headrest.
Pull the release lever up to freely adjust the
double-jointed headrest. Press the lever down to !x the
position of the double-jointed headrest. The release
lever must always be pulled up completely to move the
headrest.
Programme Run
Press the programme keys “0” and “lp” simultaneously for about 3 seconds until you hear
a signal tone. The treatment chair then moves the seat and the back rest into the lowest
position. The motion sequence has been reset now.
Once an instrument has been activated, the treatment chair cannot be moved any more.
The treatment chair can optionally be equipped with
arm rests. The arm rest on the assistant’s side is !rmly
screwed on. The arm rest on the doctor’s side can be
removed by loosening the two knurled screws on the
back of the back rest.
Emergency-Stop System
Brie$y tap the joystick or any programme key at the back rest to stop the active program-
me immediately.
You can !nd an application !lm at www.youtube DKL Germany.
Video: DKL CHAIRS L2 SERIES FUNKTIONEN TREATMENT CHAIR POSITIONS
LINK: https://youtu.be/qzRuFbGAuA0

17
Putting the Treatment Unit into Operation
Activating / Deactivating the Treatment Unit
The treatment unit is equipped with a power switch 1on the chair base. The power switch connects
the treatment unit with the power supply.
In the event of longer downtimes, the treatment unit should be disconnected from the power supply.
The treatment unit contains a device fuse 2.
Switch on the treatment unit at the power switch.The power switch lights up green.
>Before putting the device into initial operation and after downtimes (weekends,
(public) holidays etc.), $ush the water lines intensively.
> Press the cup !ll button several times before starting work.
T 6,3A H 250V

18
Operating Lamp LED.light EVA
When swivelling and moving the
operating lamp, always make sure
that no objects or persons are in the
swivelling range of the arm system.
Otherwise, personal injury or pro-
perty damage may occur.
In order to move the operating lamp
only touch its handles"
For the intended use, please observe the operating instructions issued by FARO:
USER MANUAL EVA
Re$ectors
Switch
Handles
Joystick
Indicator light
Mirror
Switching on/o# on the joystick:
Push right or left
Decrease the light intensity on the joystick:
Push right and keep pushed until desired
intensity is reached.
Increase the light intensity on the joystick:
Push left and keep pushed until desired
intensity is reached.
light intensity indicator change in light intensity

19
Operating Lamp LED.light EVA
Composave setting on the joystick:
Push forwards or backwards.
Acoustic signal and
indicator light
switches to orange.
Composave setting on the switch:
Single Click.
Changing the color temperature via the switch:
Every time a double click is performed, the colour tem-
perature in Kelvin (Tk) of the light changes. Repeat the
procedure until the desired colour temperature is shown
on the indicator light. 2 beeps will inform the user that Tk is
changing.
Indicator light
yellow
4000 Kelvin
Indicator light
white
5000 Kelvin
Indicator light
blue
5700 Kelvin
Composave setting
Mirror
Loosen the plastic cover at the front of the pro-
tective cap by lightly pressing on its upper end.
On the back of the cover there is a mirror. At-
tach the mirror to the plastic cover.
You can !nd an application !lm at www.youtube DKL Germany.
Video: DKL CHAIRS L2-D2 SERIES FUNCTIONS LED.LIGHT OPERATING LAMP EVA
LINK: https://youtu.be/vaKW9RdjtLM

20
Pull the protective cap towards you to remove it for cleaning.
Cleaning and care
The re$ectors must be cleaned with
cotton wool and ethyl alcohol. Do not
use detergents that contain surfac-
tants or water-repellent substances
(staining).
Cleaning and disinfection of the Operating Lamp LED.light EVA
Cleaning and Disinfection of the handles
Before sterilising the handles, they must be
decontaminated and disinfected.
The handles cannot be disinfected by thermo-
disinfection.
Cycle EN 13060 Temperature Pressure Holding time minimum
B 121°C 207 kPa 15 min.
B 134°C 308 kPa 3 min.
Cleaning, disinfection and Sterilisation of the handles
To remove the handles, turn the handle lock on the handles
and pull o# the handles. To mount the handles, reattach
them and push them to the limit. Then lock the handle lock.
Sterilisation of the handles:
The handles must be packaged in compliance
with EN 868-5. The handles can be sterilised
with standard cycles 121°/134° C up to two
hundred (200) cycles or however up to loss of
the mechanical performance.
Do not use detergents-disinfectants containing the following substances to clean plastic
parts:
Ammonium Hydroxide, Sodium Hydroxide, Hydrogen peroxide, Ammonium Chloride,
Methylene Chloride, Methyl Alcohol, acids and corrosive substances of all kinds.
It is forbidden to directly spray any chemical substance on the device.
Warning against danger of wear and corrosion and falling suspended mass.
For all metal or plastic parts it is strictly forbidden to use substances that are abrasive,
corrosive, acids, substances containing chlorine or chloride ions, phosphorous or phos-
phorous ions or detergents with Trilene base, petrol, white spirit, chlorine or similar.