Tuttnauer 2450EK Manual

OPERATION
&
MAINTENANCE
MANUAL
Electronic Table -Top Autoclaves
models 1730, 2340, 2540, 3545, 3850, 3870E
2340, 3850, 3870 EA
2450EK
Cat. No. MAN205-0112-003E Rev. D
Brinkmann Instruments, Inc., One Cantiague Road. P.O. Box 1019, Westbury, NY 11590-0207, [phone], Fax: [phone]
Brinkmann Instruments (Canada) Ltd., 6670 Campobello Road, Mississauga, Ontario L5N 2L8, [phone], Fax: [phone]

Page 1 of 53 Pages
TABLE OF CONTENTS
PARAGRAPH PAGE NO.
1. GENERAL 4
1.1 Incoming Inspection 4
1.2 Warranty 4
2. TECHNICAL DATA 5
2.1 Introduction 5
2.2 Stand – by heating mode 5
2.3 Environment Emission Information 5
2.4 Operating Conditions 6
2.5 Utilities 6
2.6 Construction 6
2.7 Symbol Description 6
2.8 Electrical Data 7
2.9 Specifications 8
2.10 Technical Specifications 9
2.11 Directives and Standards 10
2.12 Water quality 11
3. KEYBOARD (keys and display) 14
3.1 Indicator Light Description 15
3.2 Description and Functions of the Control Panel Keyboard 16
3.3 Description of the Display Panel 18
3.4 Description of Displayed messages and Safety Measures 18
4. STERILIZATION PROGRAMS 21
4.1 PROGRAM 1. Unwrapped Instruments 21
4.2 PROGRAM 2. Wrapped Instruments and Porous Loads 22
4.3 PROGRAM 3: Liquids 23
4.4 PROGRAM 4: Accessory (Dry Only) 23
5.0 PRINTER (Optional) 24
5.1 Printer Operation 24
5.2 Printer Handling 26
6. INSTALLATION PLACING AND LEVELING INSTRUCTIONS 27
6.1 Electrical 27
6.2 Automatic Water Filling 29
6.3 Lifting and carrying 30
6.4 Loading and unloading the Device 31
6.5 Filling the Water Reservoir 31

Page 2 of 53 Pages
TABLE OF CONTENT (Cont.)
PARAGRAPH PAGE NO.
7. PREPARATION BEFORE STERILIZATION 32
8. OPERATING INSTRUCTIONS 35
9. MAINTENANCE INSTRUCTIONS 38
9.1 Preventive and Scheduled Maintenance 38
9.2 Replacing the Air Filter (models EA) 39
9.3 Draining the Reservoir 40
9.4 Cleaning Air Jet 41
9.5 Replacing the Door Gasket 42
9.6 Checking the Safety Valve 43
9.7 Replacing the Cartridge Fuse 44
9.8 Cleaning water outlet strainer 45
9.9 Cleaning Table Top Autoclaves with Chamber Brite ™ 46
9.10 Cleaning the Water Sensor 48
10. TROUBLESHOOTING FOR THE OPERATOR 49

Page 3 of 53 Pages
TABLE OF CONTENT (Cont.)
DRAWINGS PAGE NO.
Front View 12
Rear View 13
Front Panel Keyboard 14

Page 5 of 53 Pages
2. TECHNICAL DATA
2.1 Introduction
This table-top autoclave is designed for the sterilization of wrapped and unwrapped
instruments and related items found in dental, medical and veterinary clinics, first
aid rooms, hospitals, laboratories etc.
This autoclave is an electrically - heated sterilizer using steam as the sterilizing
agent. A computerized control unit ensuring a fully automatic sterilization cycle,
control and monitoring of physical parameters and a clear documentation of the
sterilization cycle controls the autoclave.
The autoclave has three automatic programs, according to the material to be
sterilized, and one auxiliary drying program. Models EA and EKA are equipped
with an air compressor that during the drying stage, draws air through a HEPA
filter (0.2µm.) and pushes that air through the heated chamber to remove moisture
and facilitate the drying operation. Drying is performed with the door closed.
On all models (except 1730), a water pump is installed between the water reservoir
and the chamber. This pump guarantees fast and accurate filling of the chamber
every time. Entry of water may be accompanied by a noise for approximately 30
seconds. This is normal noise generated by regular operation of the pump.
The control system provides adequate protection, to ensure the safety of personnel
and reliable operation with a minimum of shut down time.
On all models (except 1730), a printer is an optional addition to the autoclave. The
printer prints the preset and actual parameters of the cycle (temperature, time and
pressure).
This manual is intended for the user and gives the user a general understanding of
the instrument and the best ways to operate and take care of it in order to obtain
optimum effective results.
After reading this manual, operating the autoclave will be easy. However since this
instrument is built with high technology sensitive components, no attempt should
be made by the user or any other unauthorized person to repair or recalibrate it.
Only technical personnel having proper qualifications and holding technical
documentation (including a technician manual) and adequate information are
authorized to service the apparatus.
2.2 Stand – by heating mode
The autoclave provides an option of heating the chamber in stand-by mode
between cycles with a very low power in order to reduce total cycle time (1.6% of
the total power only). The autoclave turns off automatically if the interval between
the sterilization cycles is more than 2 hours. This feature is standard on all EK,
EKA models and optional on all E, EA models.
2.3 Environment Emission Information
1. The peak sound level generated by the autoclave is less than 70 dBA with
background noise of 60 dBA.
2. The total heat per hour transmitted by the autoclave is < 100 Wh for all
models.

Page 4 of 63 Pages
1. GENERAL
Read the Operating Instructions carefully, before beginning any
operation on the autoclave!
1.1 Incoming Inspection
Upon receiving your Tuttnauer Autoclave carefully inspect the outside
of the shipping carton for signs of damage. If any damage to the carton
is found note the location with respect to the autoclave and check that
area of the autoclave carefully once it is fully unpacked. Observe
packing method and retain packing materials until the unit has been
inspected. Mechanical inspection involves checking for signs of
physical damage such as: scratched panel surfaces, broken knobs, etc.
If any damage is found contact your dealer as soon as possible so
that they can file aclaim with the shipping carrier and also notify
Tuttnauer.
All Tuttnauer products are carefully inspected prior to shipment and all
reasonable precautions are taken in preparing them for shipment to
assure safe arrival at their destination.
Note: Lifting and carrying should always be done by two people.
1.2 Warranty
For warranty information on this unit please contact your dealer
or Brinkmann Instruments at one of the #'s listed below:
Brinkmann Instruments, Inc., One Cantiague Road. P.O. Box 1019,
Westbury, NY 11590-0207, [phone], Fax: (516) 334-
7506
Brinkmann Instruments (Canada) Ltd., 6670 Campobello Road,
Mississauga, Ontario L5N 2L8, [phone], Fax: (905) 826-
5425

Page 6 of 53 Pages
2.4 Operating Conditions
This device is to be used for indoor use.
This autoclave is intended for NORMAL environment conditions as follows:
●- Altitude up to 2000m.
●- Room temperature range 5ºC to 40ºC.
●- Installation Category II.
●- Pollution Degree 2.
●- Maximum relative humidity 80% for temperature up to 31ºC
decreasing linearly to 50% relative humidity at 40ºC.
●- Mains supply voltage fluctuations up to +/-10% of the nominal voltage.
The sterilizer should be loaded only with autoclavable material.
Caution!
Waste water should be brought into the public net in accordance with the
local rules or requirements i.e.
ONLY NON-HAZARDOUS LIQUIDS SHALL BE DISPOSED IN PUBLIC
SEWAGE!
2.5 Utilities
Utilities Unit Value
V-A 1ph, 120V – 16A,50/60 Hz
Power supply (as appropriate) V-A 1ph, 230V – 16A,50/60 Hz
Attention:
The electrical net must be protected with a current leakage safety relay.
The electrical network must comply with local rules or regulations.
2.6 Construction
The main parts of the autoclave are made of materials as indicated below:
♦Chamber is electro-polish and built of stainless steel 316 L.
♦Door is made of stainless steel CF8.
♦Trays are made of stainless steel 316.
♦Water reservoir is made of hard plastic material.
♦Door handle is made of hard plastic material, which is safe to touch and
thermo-insulated.
♦Covers are made of aluminum sheet, coated with Epoxy paint.
2.7 Symbol Description
Caution! Consult accompanying documents
Caution! Hot surface.
Caution! Hot steam.
Protective earth (Ground)
Stand by

Page 7 of 53 Pages
2.8 Electrical Data
1730 2340 2540 3545 3850 3870
E E, EA E, EA EK E E, EA E, EA
Ampere (A) at 230/240V 4.6 6 6 9.6 10.4 10.4 13
Ampere (A) at 120V 8.8 11.7 11.7 20.0 
Watts (W) 1050 1400 1400 2200 2400 2400 3000
Frequency 50 / 60 Hz
Degree of protection by
enclosure IP31
AUTOCLAVE TYPE
1730 2340 / 2540 3545 / 3850 / 3870
E E EA EK E EA
DESCRIPTION
120V 230V 120V 230V 120V 230V 120V 230V 120V 230V 120V 230V
Circuit breaker (A) 15 10 15 10 15 10 15 15 15
Air pump fuse (A)     2.0 1.25   1.25
Water pump fuse (A
)
  1.25 1.25 1.25 1.25 1.25 1.25 1.25
For autoclaves
Models EA
(with an air pump)
For autoclaves
Models E, EK
(without an air pump)

Page 8 of 53 Pages
2.9 Specifications
Overall Dimensions
1730 2340 2540 3545 3850 3870
Model
Dimensions mm in mm in mm in mm in mm in mm in
A 440 17.4 510 20.0 510 20.0 590 23.2 660 26.0 660 26.0
B 305 12.0 365 14.4 365 14.4 450 17.7 525 20.7 525 20.7
Overall
Dimensions
C 455 17.9 540 21.5 545 21.5 566 21.9 695 27.5 875 34.5
D 750 29.5 910 35.8 910 35.8 990 39.0
1155 45.5 1335 53.0
Maximum
dimensions
(door open) E 560 22.0 630 24.8 655 25.8 755 29.7 815 32.0 815 32.0
F 350 13.8 415 16.4 415 16.4 488 19.2 450 2.0 450 2.0
F1 339 13.4 422 16.6 422 16.6 371 14.6 564 22.2 564 22.2
G 50 2.0 50 2.0 50 2.0 50 2.0 50 2.0 50 2.0
Distance
between
supporting legs
H 315 12.4 400 15.8 400 15.8 400 15.2 555 2.0 725 2.0
Reservoir volume 3
lit.
0.8
gal
3
lit.
0.8
gal
3
lit.
0.8
gal
3.0
lit.
0.8
gal
6
lit.
1.6
gal
6
lit.
1.6
gal
Minimum water
vol. in Reservoir
0.8
lit.
0.21
gal
0.8
lit.
0.21
gal
0.8
lit.
0.21
gal
0.8
lit.
0.21
gal
2.0
lit.
0.53
gal
2.0
lit.
0.53
gal
Max. Allowable
Working Pressure
(MAWP)
2.76 bar (40 psi)
Load No. counter Counting from 0 to 250 and nullifies.

Page 9 of 53 Pages
Shipping
Volume
0.18 m3
(6.35 cu.ft.)
0.27m3
(9.4 cu.ft.)
0.27m3
(9.4 cu. f.)
0.35 m3
(12.4cu.f.)
0.63 m3
(22.2cu.f.)
0.76m3
(26.8cu.f)
Shipping
Weight
25 kg.
(55 lbs.)
36 kg.
(79 lbs.)
48 kg.
(106 lbs.)
60 kg.
(132 lbs.)
89 kg.
(196 lbs.)
102 kg.
(225 lbs.)
Printer
N/A
Yes Yes Yes Yes Yes
Half
2
2 3 4
- -
No. of IMS Cassettes
(Optional)
Full
-
2 3 4
10 15
No.
of trays
3 3 4 2 2 2
Tray dimensions
W X D X H
12 x 29.5 x 2 cm
(4.7" x 11.6" x 0.8")
17 x 41.5 x 2cm
(6.7" x 16.3" x 0.8")
17 x 41.5 x 2 cm
(6.7" x 16.3" x0.8")
25.6 x 40.8 x 2.5
(10.1 x 16.1 x 1)
19.8 x 40.8 x 2.2
(7.8 x 16.1 x 1)
28 x 50 x 2.5 cm
(11" x 20 " x 1" )
35 x 50 x 2.5cm
(14" x 20 " x 1")
28 x 67 x 2.5cm
( 11" x 26" x 1" )
35 x 67 x 2.5
(14" x 26" x 1")
Volume
of
chamber
7.5 l.
(2 US gal.)
19 l.
(5 US gal.)
23 l.
(6 US gal.)
34.4 l
(7.8 gal.)
65 l.
(17US gal)
84 l.
(22 US gal)
Chamber
dimensions
DIA x D
17 x 34 cm
(7" x 13")
23 x 47 cm
(9" x 18")
25.4 x 47.5cm
(10" x 19")
31.3 x 39.1
(12” x 15”)
38 ª 58 cm.
(15" ª 23" )
38x76 cm
(15" x 30")
2.10 Technical Specifications
Models
1730 2340 2540 3545 3850 3870

Page 10 of 53 Pages
2.11 Directives and Standards
Every autoclave meets the provisions of the following Directives and is constructed
in compliance with the following Standards:
2.11.1 Technical Directives
1. Medical device directive MDD/93/42/EEC.
2.11.2 Technical Standards
1. A.S.M.E. Code, Section VIII div.1 for unfired pressure vessels.
2. AAMI/ANSI ST-55:2001 Table-Top steam sterilizers.
3. UL61010-1 Safety for Electrical Equipment for Measurement,
Control, and Laboratory Use, General Requirements.
4. UL61010-2-041 Particular Safety for Autoclaves.
2.11.3 Quality standards
The manufacturing plant meets the following quality standards:
1. EN ISO 9001:2000– Quality System
2. ISO 13485 – Quality systems – Medical devices – Particular
requirements for the application of ISO 9001.

Page 11 of 53 Pages
2.12 Water quality
The distilled or mineral – free water supplied to the autoclave should have the
physical characteristics and maximum acceptable level of contaminants indicated
in the table below:
Physical characteristics and acceptable contaminants levels in water, for
sterilizers
Evaporate residue ≤15 mg/l
Silica ≤2 mg/l
Iron ≤0.2mg/l
Cadmium ≤0.005 mg/l
Lead ≤0.05 mg/l
Rest of heavy metals ≤0.1 mg/l
Chloride ≤3 mg/l
Phosphate ≤0.5 mg/l
Conductivity ≤50 µs/cm
pH 6.5 to 8
Appearance Colorless, clean, without sediment
Hardness ≤0.1 mmol/l
Compliance with the above data should be tested in accordance with
acknowledged analytical methods, by an authorized laboratory.
Attention:
We recommend testing the water quality once a month. The use of water for
autoclaves that does not comply with the table above may have severe impact on
the working life of the sterilizer and can invalidate the manufacturer’s
guarantee.

Page 12 of 53 Pages
FRONT VIEW
No. Description
1 Reservoir water drain valve
2 Ring for drain valve
3 Door closing device
4 Door switch
5 Autoclave cover
6 Water reservoir cover
7 Water reservoir – assembly
8 Safety valve
9 Air relief valve
10 Pressure gauge
11 Validation port cover
12 Main switch
13 Printer
14 Front panel key board
15 Completion to panel
16 Panel base
17 RS232 port cover
Model 1730
Models 2340/2540
Models 3545/3850/3870

Page 13 of 53 Pages
REAR VIEW
EA
,
EKA onl
y
Cut-Out Thermostat
Reset button

Page 14 of 53 Pages
3. KEYBOARD (keys and display)
FRONT PANEL KEYBOARD
Note: See section 3.2 for a description of the Keyboard buttons

Page 15 of 53 Pages
3.1 Indicator Light Description
Programs
Indicators Shows the selected program
START Shows the system is running a program
HEAT The system is currently in the Heating stage
STE The system is currently in the Sterilization stage.
EXH The system is in the Exhaust stage.
DRY The system is in the Dry stage.
FAIL
Shows the system has failed as a result of either a
malfunction, or the STOP key was pressed. A message
is displayed on the screen; the reason for failure.
ADD WATER This indicator lights if there is a lack of water in the
reservoir.
DOOR CLOSED This indicator lights showing the door is in the closed
position.

Page 16 of 53 Pages
3.2 Description and Functions of the Control Panel Keyboard
3.2.1 program keys
(1) Unwrapped Instruments
(2) Wrapped Instruments
(3) Liquids (slow exhaust, no drying)
Pressing one of the above program keys determines the
chosen program. The program parameters are displayed and
the program indicator lights.
(4) Dry Only
Pressing this key allows inclusion of the Additional Drying
procedure for a period of time determined by the operator.
Time range is 0-99 minutes.
3.2.2 Other keys
(5) TEMP.
Pressing this key places the marker under the temperature
displayed on the display. To raise or lower the program
sterilization temperature, press UP or DN keys. To store the
new value in the memory, as the nominal setting, complete
the changing of the parameter by pressing TEMP. key again.
The permitted temperature range for proper sterilization is
121ºC-134ºC (250ºF-274ºF).
Note:
In no case should the temperature be set higher than
134ºC (274ºF)
(6) STE. TIME
Pressing this key places the marker under the sterilization
time displayed on the display. To raise or lower the program
sterilization time, press the UP or DN keys. To store the new
value in the memory, as the nominal setting, complete the
changing of the parameter by pressing STE. TIME key again.
Time range is 3-99 minutes.
Note:
It is important to properly coordinate the STE. TIME
with the sterilization temperature.
(7) DRY TIME
Pressing this key places the marker under the drying time
displayed on the display. To raise or lower the program
drying time, press the UP or DN keys. To store the new value
in the memory, as the nominal setting, complete the changing
of the parameter by pressing DRY TIME key again. The time
range is 0-99 minutes. This key does not allow any change of
the dry time for the liquids program, for which it is
permanently set to 00 minutes.
(8) UP
Pressing this key in combination with TEMP. (5), STE
TIME (6), DRY Time (7) and CLOCK (9) increases these
values.

Page 17 of 53 Pages
(9) DN
Pressing these keys in combination with TEMP. (5), STE
TIME (6), DRY Time (7) and CLOCK (9) lowers these
values.
(10) CLOCK
Pressing the CLOCK programming key displays the date,
with the cursor under the day. Pressing the UP or DN keys
changes the date. Pressing the CLOCK key again moves the
cursor to the month, then year and then time (hour, minute,
second). At this point the display shows the currently set date
and time. If no key is pressed during a 10-second interval, the
system exits the clock-programming mode and returns to the
current program display.
(11) Water Inlet
Pressing this key continuously, allows for manual filling of
the chamber with water. Once the key is released the water
pump stops, the fill valve closes and water stops entering the
chamber.
(12) START
Pressing this key starts the sterilization (or DRY ONLY)
process accordingly to the selected program. Water flows
automatically into the chamber, HEAT and STE. stages
commence and the respective LED indicator lights up.
On completion of the sterilization program the Exhaust stage
will automatically begin, at the end of which a Drying stage
(if previously programmed) will initiate. The respective LED
indicators light up indicating which stage is operating. Once
all stages have been completed the final indicator
extinguishes and the screen displays the “Cycle Finished”
message.
The process will not start if;
•The door is not closed and the DOOR CLOSED
indicator is off.
•The “DOOR UNLOCK” message is displayed.
Note:
Due to inherent elasticity of the door gasket, the
CLOSE DOOR indicator may be illuminated
green before acomplete seal is made between the
door and the chamber. Therefore, in order to
ensure the door is fully sealed, tighten the door
bolt until ‘hand tight’. Do not over tighten the bolt
as this may result in damage to the gasket.
Should the autoclave fail to reach sterilizing
temperature/pressure, always check first the door
is fully sealed. If not, tighten the door further, as
described above, until completely sealed.
•There is not enough water in the reservoir, (the red
ADD WATER indicator lights and the “ADD
WATER” message is displayed).

Page 18 of 53 Pages
(13) STOP
This key issues the only command accepted by the system
during the running of a program. Pressing this key for over 1
second causes the program to immediately cease running and
enters the EXHAUST stage, at the end of which the “MAN.
STOP” message will be displayed. This key has no function
when the system is not in operation and its only use is to
manually stop a cycle. In normal working conditions on
completion, the system automatically terminates the cycle,
without use of this key.
The STOP key does not function in EXH stage.
3.3 Description of the Display Panel
The display is comprised of 16 characters in one row and is divided into 4
sections.
The first section to the right continuously shows the actual pressure within
the chamber. This happens whether the system is running a program or not
(provided the main power switch is turned on).
The three other sections are designated to show the parameters of the
selected program, or operating messages. When the system is running a
sterilization program, the sterilization temperature will be displayed above
the TEMP key. Sterilization time will be displayed above the STE. TIME
key and the drying time for the selected program will be displayed above
the DRY TIME key.
If the program is aborted as a result of parameters exceeding the controlled
limits (high, low pressure or temperature etc.) or a manual STOP
command, a message is displayed on the left side of the screen. When a
message is displayed, pressing any key erases the message and redisplays
the selected program screen.
When the system is running a program, the screen displays the current
temperature within the chamber and the remaining time for sterilization or
drying. The current real pressure inside the chamber is always displayed
on the screen.
3.4 Description of Displayed messages and Safety Measures
Low Heat Message is displayed and sterilization does not start if the
autoclave has not reached sterilization temperature after
heating for 50 minutes while in the Wrapped or Unwrapped
programs (80minutes in the Liquid program).
Possible causes:
♦A clogged Air Jet (see cleaning the Air Jet sec 9.3)
♦No power to the heating elements
♦Low line voltage delaying heat up
Low Pres Message is displayed, fail indicator lights, and the program
is aborted if the pressure drops 4 psi (0.27Bar) below the
required sterilization pressure.
Possible causes:
♦Insufficient water in the chamber (see Low Water message)
♦A damaged heating element
♦A damaged pressure transducer