dental X DOMINA PLUS B User manual

DOMINA PLUS B
Water Steam Sterilizer
User Manual
Rev. 8
Date: March 2017
PREMIUM
LINE
OM1004U

Domina Plus B fulfills all the directions in force concerning the safety, and the built-in parameters has been
properly set by the manufacturer in order to warranty effective sterilization if proper loading conditions are
followed.
Please, read carefully this manual before using the machine; an improper utilization of the sterilizer should
carry on defective sterilization with unattended consequences.
In case of doubt or questions, please call the agent.
Thanks for the confidence given.
All rights reserved
No portion of this publication can be printed, transmitted, rewritten, stored in a data recovery system, trans-
lated in any foreign or computer language, in any form or through any devices, without written consent by
DentalX.
Information in this manual is subject to change without any warning or prior notice by Dental X and does not
represent a commitment for the vendor.
Domina Plus B is trademark of Dental X.
DENTAL X S.p.A.
Via Marzotto 11
36031 Dueville (VI) Italy
Tel. [phone]
Fax [phone]
e-mail: [email protected]
http://www.dentalx.it

DentalX
Domina Plus B 1
TABLE OF CONTENTS
1. GENERAL.....................................................................................................................................................2
1.1 INTRODUCTION ..................................................................................................................................2
1.2 CONFORMITY TO EUROPEAN DIRECTIVES ....................................................................................2
2. FAMILIARIZATION.......................................................................................................................................3
2.1 PACKAGE DIMENSIONS AND WEIGHT.............................................................................................3
2.2 UNPACKAGING ...................................................................................................................................3
2.3 OVERALL DIMENSIONS......................................................................................................................4
2.4 USABLE SPACE IN THE CHAMBER...................................................................................................4
2.5 SAFETY FEATURES............................................................................................................................5
2.6 PRECAUTIONS AND INTENDED USE................................................................................................6
2.7 FRONT AND REAR VIEW....................................................................................................................8
2.8 STANDARD ACCESSORIES ...............................................................................................................9
2.9 ENVIRONMENTAL CONDITIONS FOR OPERATION AND STORAGE..............................................9
2.10 TECHNICAL SPECIFICATIONS.........................................................................................................10
3. INSTALLATION..........................................................................................................................................11
3.1 BASIC REQUIREMENTS...................................................................................................................11
3.2 GETTING STARTED..........................................................................................................................12
3.3 NOTES ON ALTITUDE COMPENSATION.........................................................................................13
4. OPERATING INSTRUCTIONS...................................................................................................................14
4.1 FRONT PANEL COMMAND/SIGNALING ..........................................................................................14
4.2 RUNNING A STERILIZAZION CYCLE...............................................................................................15
4.2.1 The available sterilization cycle..........................................................................................15
4.2.2 Starting a sterilization cycle................................................................................................16
4.3 STOPPING THE CYCLE....................................................................................................................17
4.4 TOPPING UP AND DRAINING THE TANKS......................................................................................18
4.4.1 Topping up the main tank...................................................................................................18
4.4.2 Draining the used water tank .............................................................................................18
5. PROGRAMMING........................................................................................................................................19
5.1 DATE AND TIME................................................................................................................................19
5.2 MEASUREMENT UNIT AND OPTIONS.............................................................................................19
5.3 SPECIAL CYCLE S5 ..........................................................................................................................20
6. MAINTENANCE..........................................................................................................................................21
6.1 USER MAINTENANCE.......................................................................................................................21
6.2 AUTOMATIC PERIODIC CLEANING CYCLE....................................................................................21
6.3 CLEANING THE INSTRUMENTS BEFORE THE STERILIZATION...................................................21
6.4 CLEANING/REPLACING THE WATER INLET FILTER .....................................................................22
6.5 REGULAR STERILITY TESTS...........................................................................................................22
6.5.1 Bowie & Dick test...............................................................................................................22
6.5.2 Vacuum Test......................................................................................................................22
7. TROUBLESHOOTING................................................................................................................................23
7.1 MANUAL DIAGNOSIS........................................................................................................................23
7.2 INITIAL AUTO-TEST ..........................................................................................................................24
7.2.1 Water quality check............................................................................................................24
8. ALARMS.....................................................................................................................................................25
8.1 GENERAL...........................................................................................................................................25
8.2 WARNING MESSAGES .....................................................................................................................25
8.3 PRE-WARNING ALARMS..................................................................................................................26
8.4 ABORTED CYCLE ALARMS..............................................................................................................26
8.5 CLASS B ADDITIONAL ALARMS ......................................................................................................27
9. CONNECTIONS..........................................................................................................................................28
9.1 CONNECTION TO AN EXTERNAL PRINTER ...................................................................................28
9.2 INTEGRATED PRINTER (OPTION)...................................................................................................28
9.3 CONNECTION TO A COMPUTER (ONLY FOR SERVICE)...............................................................29
10. OPERATOR’S NOTES ...............................................................................................................................30
APPENDIX: SERVICE BOOK

DentalX
2 Domina Plus B
1. GENERAL
1.1 INTRODUCTION
Object of this manual is to supply instructions for the operators in order to allow:
correct installation
right use
proper maintenance of the sterilizer
The machine must be installed and operated according to the procedures described in this manual.
The user is responsible for what concerns the fulfillment in the legal subject concerning installation and
operation of the sterilizer.
If the machine is not correctly installed and operated or the appropriate maintenance is not carried out,
the manufacturer cannot be considered responsible for any possible breaks and malfunctions.
Please, check for the packing integrity and no evident damages or missing parts (see delivery note).
IN CASE OF DAMAGES OR MISSING PARTS, PLEASE IMMEDIATELY INFORM AND IN DETAIL THE
FORWARDER, DENTAL X AND ITS AREA AGENT.
1.2 CONFORMITY TO EUROPEAN DIRECTIVES
Domina Plus B is produced by Dental X and conforms to electromagnetic compatibility standards in ac-
cordance with the Medical Devices Directive 93/42/EEC, with European Standard EN 13060 and with the
Pressure Equipment Directive (PED) 97/23/CE.
This equipment has been developed and manufactured using high quality material and parts that can be
recycled and reused.
This symbol means that electrical and electronic equipment, at the end of their lifetime,
must be disposed separately from the household waste. Dispose this unit by carrying it to
the local collection/disposal centre. Sanctions are applied in case the regulations concern-
ing waste disposal are not met.
Help us to preserve the environment in which we live!
Mark CE 0051 applied on the rear panel points out the conformity with the Directive
93/42/CEE and warrants the customer that the equipment is safe and according with the in-
ternational standards .

DentalX
Domina Plus B 3
2. FAMILIARIZATION
2.1 PACKAGE DIMENSIONS AND WEIGHT
Total weight: 55 Kg
Store the package for future shipment.
2.2 UNPACKAGING

DentalX
4 Domina Plus B
2.3 OVERALL DIMENSIONS
Net weight 45 Kg
Full load weight 57 Kg
2.4 USABLE SPACE IN THE CHAMBER
Diameter: 240 mm
Depth: 384 mm
Capacity: 17,5 liters
Useful dimensions per tray: 315 x 214 mm (x 2),
315 x 168 mm (x 2)
Useful tray volume : 10 liters

DentalX
Domina Plus B 5
2.5 SAFETY FEATURES
The sterilizer features several devices that assure the full safety for of operators.
Door with dual lock control
An electromechanical device allows the door to be opened only if the following conditions are met:
- unit power supplied and turned on
- no current alarms
- internal pressure not dangerous for the operator
For further safety, to unblock the door at the end of cycle or in case of alarm it is necessary to press the
Start/Stop button.
Caution: If the equipment is turned off with open door, do not apply force on the handle
to try to close the door. To close it, the equipment must be on.
Protection against overpressure –safety valve and decompression valve
Safety valve - it takes over when the pressure inside the chamber exceeds the value of 2,55
bar. To verify the efficiency of the valve, when the unit is cold and switched off, unscrew the
black cap of the valve, when a “click” is heard pull it gently : you have to feel that the cap is
free to move. The valve can not be adjusted or serviced for safety reasons. Follow the
maintenance program described in the appendix SERVICE BOOK to assure the safety of the
unit.
Decompression valve –it takes over when the pressure inside the camera exceeds the value
of 2,4 bar; an acoustic signal warns the operator and the display shows the message
ALARM 16.
Overheating protection
The temperature inside the chamber is programmed so as not to exceed the limit of 142 °C; in case
of fault, a further protection takes over to prevent the temperature from rising over 150 °C.
Blackout protection
In case of power blackout during the sterilization cycle, the pressure inside the chamber is com-
pletely released to the environment value. At the restore of the power supply, the display will show
the message BLACK OUT.
Automatic switch off
Elapsed 30 minutes from the end of the cycle without opening the door or without activating a front
panel button, the unit will switch off automatically.
This function is not operating if no sterilization cycle has been carried out and completed.

DentalX
6 Domina Plus B
2.6 PRECAUTIONS AND INTENDED USE
The European norms concerning safety and sterilization process defines the following figures:
OPERATOR: the person operating the unit to achieve the expected result.
RESPONSIBLE AUTHORITY: person or group responsible for the use and maintenance of the
unit, he or she also has to make sure that.
- all personnel who operate or maintain the equipment are trained in its operation and in its safe use.
- there is regular training of all personnel concerned with the operation and maintenance of the equipment,
including emergency procedures for any toxic, flammable, explosive or pathogenic material released into
the environment.
- records of attendance at training are maintained, and evidence of understanding demonstrated.
The purpose of this manual is to provide suitable use instructions for both figures: however it does
not give instructions concerning the STERILIZATION PROCEDURE and the cautions to be fol-
lowed to prevent contamination of instruments and/or personnel using the unit that is a assignment of
the RESPONSIBLE AUTHORITY of the practice unit.
We wish to point out the following risks:
- The sterilization is a process that works by means of water steam under pressure and high
temperatures; when the load is removed from the sterilization chamber always use tools and
wear personal protections suitable for handling hot instruments.
- On opening the sterilizer, especially in case the cycle has been aborted, a small quantity of hot
water steam or condensate can be released in the environment; be careful when opening the
door.
- If the condensation cycle is not brought to an end, the load, the trays and the tray support as
well as the chamber inner space are ALWAYS to be considered as potentially contaminating el-
ements, as long as a subsequent sterilization cycle has not been successfully completed.
- The water contained in the recovery tank is to be regarded as biologically contaminating, there-
fore when this tank is emptied, suitable precautions should be taken. The disposal of recovery wa-
ter needs to be done in accordance with the national or local regulation. Check the integrity of the
draining pipe before its use.
- To prevent cross contaminations during the loading and unloading steps, open the door with
clean hands or wear uncontaminated gloves to avoid contaminating the door handle, do not
use gloves worn during the instruments decontamination step for this operation; when the steri-
lized instruments are removed from the chamber, always use uncontaminated gloves.
- In case of contact with hot water, steam or contaminated materials rinse with fresh water and seek for
medical help.
The water steam sterilizer is designed to be used for the sterilization of reusable medical instru-
ments that can be steam sterilized in a range of temperatures between 121°C and 135°C; any at-
tempt of sterilizing instruments that are not fit for undergoing this process can result in hazard for
the operator: it can also lead to potentially serious faults and damage the sterilizer’s safety mecha-
nisms.
The unit is not to be used to sterilize liquids and flammable materials.
The unit is designed for indoor use only.
Do not use in presence of anesthetic or flammable gas.
To avoid an excessive level of humidity, properly air the room where the unit is installed.

DentalX
Domina Plus B 7
SYMBOLS
Hazard symbols are used on the machine and in this manual to highlight phases or parts that may be
dangerous due to high temperatures.
Caution: the instruments and chamber become very hot
Take care, danger risk.
Risk of contamination.
Consult the documentation.
(Carefully read this manual; improper use may expose the user to
health risks)

This symbol indicates important additional notes for the use of
the device.
INTENDED USE
Domina Plus B is a small table steam generator designed to decontaminate dental and medical
products in accordance with ISO EN 13060 requirements. Its intended use is to perform:
• Class B sterilisation
The sterilisation of all wrapped or non-wrapped, solid, type A hollow-load products and porous
products as represented by the test loads.
• Class S sterilisation:
The sterilisation of products as specified by the manufacturers of the steriliser, including non-
wrapped solid products and at least one of the following:
- Porous products
- Small porous items
- Type A and B hollow load products
- Single-wrapped products
- Multiple-layer wrapped products

DentalX
8 Domina Plus B
2.7 FRONT AND REAR VIEW

DentalX
Domina Plus B 9
2.8 STANDARD ACCESSORIES
To make the warranty active it is necessary that a copy of the supplied Unit Passport is sent,
through the agent, to the manufacturer; for want of this the warranty will decline.
2.9 ENVIRONMENTAL CONDITIONS FOR OPERATION AND STORAGE
The sterilizer is designed to operate in environments with temperatures between 10 °C and 40 °C,
relative humidity from 20% to 85%, atmospheric pressure from 750 mBar to 1050 mBar and alti-
tude between 0 and +2000 meters. Storage conditions: temperature -10°C 50°C, humidity without
condensation 10-95%, atmospheric pressure 500-1060 mBar.
NEVER USE IN PRESENCE OF INFLAMMABILE ANESTHETIC GAS
Filter spanner
(P/N 105228)
Water filter
(P/N 105320)
Bacterial filter
(P/N 021008)
Tray rack (P/N 105078)
2+2 Trays
(P/N 105076 - 105077)
Warranty
User manual
Tray holder
(PN/ 105609)
Cleaning tabs
Drain tube
(P/N 101041A)

DentalX
10 Domina Plus B
2.10 TECHNICAL SPECIFICATIONS
Chamber dimensions
Ø = 240 mm
Depth = 384 mm
Chamber capacity
17,5 l
Maximum load
4 kg (solid load)
1,5 kg (porous load)
Warming-up time
20’ from room temperature
10’ with pre-heated chamber
Sterilization time
from 3’ to 90’ depending on the selected cycle
Drying time
from 3’ to 14’ depending on the selected cycle
External dimensions
443 x 590 x 428 mm
(L x D x H)
Net weight
45 Kg
Mains voltage
230 Vac
Frequency
50/60 Hz
Max consumption
1920 W
Average consumption
600 W
Standby consumption
12 W (20 W versione printer)
AC fuses
2 x FF 10A
(type 6.3 x 32 H 500V)
Clock battery
Internal, not replaceable by the operator: CR2032
Capacity of automatic used-water drain (optional)
Max 0,5 l/min, T max 70 °C
Auto-switching-off
Elapsed 30’ from the end of a cycle and without any action
Dual water tank
4 liter each (used and clean water tank)
Vacuum pump
20 l/ min - 0.96 bar
Bacterial filter
0.3 µm al 99.97 %
IP rating (in accordance with EN 60529)
IP31
Differentiated heating system - SDR
Transmitted heat in environment at 23°C: 0,22 kJ/h
Sound emission: 52 dB/A at 1 m
Working cycle: continuous
Pollution degree: 2
Transient overvoltage protection: II
Monitoring of the water conductivity
Maximum volume available on the trays: 10 l
Maximum chamber temperature: 135°C (-0/+2°C)
Safety valve working pressure : 2,55 bar
Pressurised container conforming to Directive 97/23/EC (PED)

DentalX
Domina Plus B 11
3. INSTALLATION
3.1 BASIC REQUIREMENTS
1. Check that the mains voltage of your electrical installation match-
es the value indicated on the equipment plate, the electrical socket
is capable to supply at least 10A and is provided with an earth
connection. In case the installation makes inaccessible the power
supply switch, provides for a proper electrical breaker
The manufacturer will not be responsible for damages to
people or things caused by an unsuitable electrical installa-
tion or missing of the earth connection.
2. The equipment must be installed on a flat surface; adjust the
front feet to have a slight slope and so make the outflow of wa-
ter easier during the drain phase.
3. For the correct operation, it is mandatory to leave a free space
of at least 4 cm on the rear side of the equipment.
4. Do not install the equipment near heat sources, in humid or
not well aired environment; in a sterilization room is required a
minimum of 10 air changes per hour, a recirculating ventilation
system can not be used.
5. On the rear panel it is located the safety valve, if it operates for
overpressure it may be released hot steam: locate the unit to
eliminate the risk of burning for the operator (ex. near a wall).
The sterilizer can also be installed in a cabinet. In this
case, provide adequate space (>10 cm) for aeration.
WARNING: do not place the unit on surfaces
which could cause fire or fume if hot items fall
from the equipment.
>4 cm
1
2
F
S
230Vac I > or = 16A

DentalX
12 Domina Plus B
3.2 GETTING STARTED
These operations must be carried out only by qualified personnel, wrong settings could af-
fect the quality of the sterilization.
Check the electrical requirements and connect the power supply cable
to the mains socket.
1. The equipment is delivered with empty tank and is therefore
necessary to fill it completely with demineralized water. Fill the
tank without exceeding the maximum level reference marked on
the tank opening.
The use of low quality demineralized water could create scale
deposits on the instruments, inside the chamber and on the
trays. Carefully read the label of the demineralized water con-
tainer. Do not use tap water even if treated with filters or sweet-
eners.
Do not use water for batteries, other liquids or
additives which can cause irreversible damage
to the equipment and be a risk for the operator
2. Turn on the equipment with the main switch on the back panel.
This switch can be left ON since the electrical consumption in
stand-by is almost nil.
3. Remove the basket and the trays from the chamber and close
the door.
When the unit is off, the door is blocked; if the block persists,
turn off and then on again the unit.
4. Press button 1and the Power button at the same time.; the
display shows the message <SET ALT 100 MT> with the set alti-
tude value (100 m).
Use both keys 1and 2 to adjust the value as necessary ac-
cording to the actual site altitude (see next page).
Then push the key Set to confirm the displayed value and start
the automatic initialization procedure with the entry of water in
the hydraulic circuit and chamber.

DentalX
Domina Plus B 13
5. At the end of the initialization procedure the Led READY
turns on; open the door and dry the chamber with a clean
cloth.
In case of procedure steps not correctly followed, the display will
show one of the following warning messages:
DOOR OPEN: door not closed
ADD H2O: lack of water
NEED INST: initialization procedure not carried out
In this case, repeat the procedure.
With procedure already been performed, the display will show OFF and the door stays blocked. To
unblock it, push the button Power.
The sterilizer is ready for use.
Arrange basket and trays in the chamber and select the sterilization cycle.
See Chapter 4«OPERATING INSTRUCTIONS».
3.3 NOTES ON ALTITUDE COMPENSATION
For a proper operation of the pressure control devices, an altitude compensation feature has been
introduced.
During the installation procedure it is necessary to set the altitude value (referred to sea level) for
the site where the unit operates. This procedure must be carried out every time the unit is moved to
a site with different altitude from the one previously set.
During the factory test the equipment is set at a default value of 100 meters and can be left un-
changed for real altitude values between 0 and 200 meters, since a ±100 meter error does not af-
fect the equipment operation.
To be sure of the sterilization process, it is important that the altitude tolerance from the current
value does not exceed 200 meters; otherwise, the vacuum devices should be additional loaded,
and false or premature AL8 or AL5 alarm should be signaled.
CONVERSION NOTE: to obtain meters multiply feet by 0.3048.
These operations can be carried out by qualified personnel. Wrong settings can affect
the quality of the sterilization.

DentalX
14 Domina Plus B
4. OPERATING INSTRUCTIONS
4.1 FRONT PANEL COMMAND/SIGNALING
The front panel is equipped with control keys, signaling Led’s and displays. A slight push on a key will ac-
tivate the command.
LCD Displays: visualize (from the top) the value of the parameters
Time (Led “Time”turned on), Temperature (measure unit: °C or °F
depending on the setting, related Led turned on) and Pressure
(measure unit: bar or psi depending on the setting, related Led
turned on); the upper display visualize, instead of time, possible
alarms occurred during the cycle (Led “Alarm”turned on).
Phase in progress indication: VACUUM –STERILIZE –DRY –
READY - turned on or flashing during the phases of the cycle.
Clean water tank level indication: turned on for maximum or mini-
mum level.
Used water tank level indication: turned on for maximum level.
Current program indication: 1 –2 –F –S –BOWIE & DICK -
turned on for the selected program.
Program selection keys :
1Program 1 - Sterilization at 134°C, 5 min., 3 vacuum pulses:
for wrapped and unwrapped solid instruments
2Program 2 - Sterilization at 121°C, 20min., 3 vacuum pulses:
for porous instruments and fabrics
FProgram 3 - Fast sterilization at 134°C, 3min., 2 vacuum pulse
SProgram 4 –Four preset cycles (S1, S2, S3 and S4) + 1 cycle
(P5) programmable by the operator
Key Start/Stop: controls the start or the stop of the selected cy-
cle, unlocks the door at the end of the cycle or in case of alarm oc-
curred during the cycle.
Key Power: enables the command panel, the auto-test at the
switching-on and the pre-heating resistance.
Key Set: allows to set: current date/time, measuring unit, report
printout language, temperature/process time/ vacuum pulse number
for the programmable cycle.
Key Test: allows to carry out the Bowie & Dick Test with sterilizer
normally turned on, or the Vacuum Test with sterilizer in stand-by
and chamber temperature lower than 35°C.

DentalX
Domina Plus B 15
4.2 RUNNING A STERILIZAZION CYCLE
1. Turn on the equipment by means of the rear switch.
Display TIME is showing the current time
Display TEMP. is showing OFF
Display PRESS is showing the current day and
month
2. Press the key Power and wait for a few seconds
the initial auto-test completion; during this time the
parameter set-points and the components currently
tested will appear in a sequence on the display.
Over the auto-test, the display TIME will show again
the current time, the display PRESS the value of the
current pressure, the display TEMP the value of the
current chamber temperature (if lower than 35 °C
the display will show the message “low”). The mi-
croprocessor enables the pre-heating step in order to rise the chamber temperature up to 100 °C.
During this phase the temperature reading on the display is inaccurate, because no steam being
there.
3. Arrange the material to be sterilized on the trays, load the chamber and close the door.
4. Check that Led H2O MIN (main tank signaling) is off. If not, fill up the tank with demineralized water
up to the lighting of Led H2O MAX.
4.2.1 The available sterilization cycle
(*) Liquids excluded
Key
Parameters
Load type (*)
Cycle
Parameters
Max load
Check test
1
134°C, 5‘
three pre-vacuum pulses, drying 10’ (6’
with vacuum + 4’ with ventilation)
Solid, porous, hollows
type A and B, wrapped
(ref. EN868)
B
134-137°C
2,04-2,25 bar
4Kg solid or 1,5kg porous
or a combination of both in
proportion.
Helix test
EN13060 Par 10.6
2
121°C, 20’
three pre-vacuum pulses, drying 11’ (7’
with vacuum + 4’ ventilation)
B
121-124°C
1,04-1,24bar
Helix test
EN13060 Par 10.6
F
134°C, 3’
double pre-vacuum pulse
drying 5’ (3’ with vacuum + 2’ ventilation)
Solid instruments,
unwrapped
S
134-137°C
2,12-2,30 bar
4Kg solid
Solid load,
unwrapped
EN13060 Par 10.5
S
S1
105°C, 8’ (three pre-vacuum
pulses, drying 6’ + 4’)
Solid, porous, hollows
type A and B
Disinfec-
tion
105-108°C
0,21-0,35 bar
4Kg solid or 1,5kg porous
or a combination of both in
proportion.
NA
not a sterilization
cycle
S2
134°C, 5’ (four pre-vacuum puls-
es, drying 7’ + 5’)
Solid, porous, hollows
type A and B,
wrapped
(ref. EN868)
B
134-137°C
2,04-2,25 bar
Helix test
EN13060 Par 10.6
S3
121°C, 20’ (four pre-vacuum puls-
es, drying 7’ + 5’)
B
121-124°C
1,04-1,24bar
Helix test
EN13060 Par 10.6
S4
134°C, 18’ (three pre-vacuum
pulses, drying 6’ + 4’)
B
135-138°C
2,12-2,30 bar
Helix test
EN13060 Par 10.6
S5
Parameters to be set and range:
Temp.: 105 –135°C
Process Time: 3’ – 90’
Pre-vacuum pulses: 2, 3 or 4
Drying (vacuum + ventilation):
3’+2’, 6’+4’, 8’+6’
Depends on the pa-
rameters set
Depends on
parameters
set
105-138°C
0,21-2,30 bar
To be defined by
the operator
Test B&D
134°C, 3,5’
three pre-vacuum pulses
drying 10’ (6’ with vacuum + 4’
ventilation)
Test B&D (3MTM
COMPLYTM
cod. 1300)
TEST
134-137°C
2,04-2,25 bar
B&D test pack
or equivalent
NA
Not a sterilization
cycle
Vacuum test
Temperature under 35°C
TEST
< 35°C
Empty chamber
NA
Not a sterilization
cycle

DentalX
16 Domina Plus B
To select the programs 1, 2or Fpress the relating key.
To select one of the option Sprograms,hold down the key Sand press the key 1or 2to visualize and
select on the lower LCD display the choice available (S1, S2, S3, S4 or S5).
The indication Led of the selected program turns on, and the displays will show for 5 seconds the param-
eters of the cycle currently selected.
4.2.2 Starting a sterilization cycle
Press the key START/STOP to start the selected cycle.
The programs F, S1 and S5 do not warrant the Class B sterilization; to start these types of cycle,
hold down the key F(or S) and push the key Start/Stop.
The door is locked and stays locked throughout the cycle duration.
The parameters of the selected cycle are shown once again for 10 seconds, then the sterilizer starts and
runs the cycle phases automatically. The various steps of the cycle are microprocessor controlled and
sequentially shown on the display; in this way the operator can monitor the progress of the sterilization
phases and times.
The signaling for the various phases of the cycle are reported below:
Led VACUUM turned on
Display TIME starts to record the cycle duration
Display PRESS shows the chamber pressure value
Display TEMP. shows the chamber temperature value
The program indication Led (1, 2, 3 or 4) starts to flash.
Vacuum phase (water entry in the chamber and pre-vacuum pulses)
During this phase the microprocessor enables the vacuum pump and enters a water dose in the
chamber. Led VACUUM is flashing. This phase will be repeated more times and should require 10
to 20 minutes depending on the chamber conditions and load type to be processed. Pump opera-
tion may be slightly noisy.
For unwrapped solid instruments we recommend to use the cycle F. In this way the sterilization
time will be faster, and power consumption reduced.
Sterilize phase
Reached the preset parameter values, Led VACUUM turns off and Led STERILIZE turns on. The
display Time starts the countdown marking the time remaining to the end of the sterilization pro-
cess, the Pressure and Temperature displays show respectively the P and T values of the steam.
The sterilization phase is followed by the decompression phase, with the display Pressure showing
the decreasing pressure values down to 0. Again, the display Time will start the countdown of the
decompression phase. Based on the our experiences, the decompression time has been slightly
extended in order to minimize the thermal shock consequent to the status change of the steam.
Drying phase
Over the decompression phase, Led STERILIZE starts to flash to signal the completion of the steri-
lization process. At the same time the Led DRY turns on, signaling the start of the drying phase.
Throughout this phase, the chamber heaters keep the chamber warm according to a microproces-
sor-controlled logic, the vacuum pump comes again into operation to eliminate the residual steam.
The display Time shows the countdown of this phase. Follows the forced ventilation phase through
the bacterial filter –the display Time shows also the countdown of this phase.

DentalX
Domina Plus B 17
End of cycle
As soon as the drying is over, Led DRY turns off, and Led READY and STERILIZE turn on. A 10-
second alert signal is generated to draw the operator attention. The chamber heaters are set at re-
duced power (pre-heating) until the door is open. The display Time shows the total time of the cy-
cle, the Pressure and Temperature displays show respectively the current P and T of the chamber.
At the end of cycle F, S1 or S5 only the Led READY will light and not STERILIZE to signal that the
cycle selected by the operator does not warrant a Class B sterilization; the display will show the cy-
cle counter.
To unlock the door before opening it, press the key Start/Stop.
The cycle is over and the load can be taken out.
ATTENTION: instrument and chambers are very hot
Opening the door, the displays will show again the current time, chamber temperature and pressure, and
the sterilizer is ready for a new cycle.
In case of on-board printer or external printer connected, a report will be issued during the cycle phases
with the more significant data; the report can be filed as proof of the sterilization process performed.
The operator can arrange other load on the trays and start a new sterilization cycle. with the advantage of
shorter heating-up time as the chamber is already warm, or press key Power to put the unit in stand-by
status (OFF on the display).
If the door is not opened or a key pressed within 30 minutes, the unit switches to stand-by status
(OFF) automatically.
Should any failure or error occur during the cycle, Led ALARM turns on, the display Time will show the
type of alarm (see chapter ALARM) and the door remains locked. To unlock the door, press key
Start/Stop.
ATTENTION: instrument and chambers are very hot
Contamination risk
4.3 STOPPING THE CYCLE
To stop the sterilization cycle, press key Start/Stop. The display Time shows the message “MANU
STOP”.
Before opening the door, make sure that the display Pressure is showing the value 0. A safety device will
anyway prevent from opening the door if the chamber is over-pressurized.. To unlock the door, press key
Start/Stop.
Remove the load and check for the presence of water into the chamber. In case of wrapped instruments,
we suggest to replace with new bags.
Before loading the chamber again, dry it carefully and wait 10 minutes to allow the water to evaporate and
be drained completely.

DentalX
18 Domina Plus B
4.4 TOPPING UP AND DRAINING THE TANKS
The sterilizer is fitted with two 4-liters tanks: main tank for the clean demineralized water and recovery
tank for the used water.
The hydraulic system does not reuse the condensate obtained during the sterilization process; this con-
densate is collected in the recovery tank which must be periodically drained. This mode of operation in-
volves the progressive main tank emptying and recovery tank filling.
4.4.1 Topping up the main tank
The average water consumption per sterilization cycle is 520 cc, hence 7 cycles can be performed with a
full tank .
The of the Led H2O MIN signals a water level into the main tank insufficient
to perform a new cycle.
Provides for the topping up of the main tank, taking care to not exceed the
grid on the entrance. The lighting of the Led H2O MAX and a acoustic
warning signals that the tank is full.
CAUTION: take care not to touch hot parts when removing
the cap from the main tank.
4.4.2 Draining the used water tank
The lighting of the Led H2O MAX relative to the used water tank warns that
the maximum level has been reached. In this case :
Get a bucket or a tank of at least 4 l capacity,
Fix the supply drain tube into the left fast fitting (gray),
Wait for a complete draining,
Unfit the tube pushing the ring nut against the machine and drawing
the tube.
CAUTION! The water contained in the used water tank is to be regarded as biologically con-
taminating, therefore when this tank is emptied, suitable precautions should be taken. The dis-
posal of recovery water needs to be done in accordance with the national or local regulation.
MAX
MAX
MIN