Page 1
OPERATION
&
MAINTENANCE
MANUAL
Table-Top Autoclaves
Models 1730, 2340, 2540, 3545, 3850, 3870M
Page 2
Page 3
Page 1 of 63 Pages
TABLE OF CONTENTS
PARAGRAPH PAGE NO.
1. GENERAL 4
1.1 Incoming Inspection 4
1.2 Warranty 4
1.3 Warranty Statement 4
2. TECHNICAL DATA 5
2.1 Introduction 5
2.2 Operating Condition 5
2.3 Standards 5
2.4 Storage conditions 5
2.5 Construction 6
2.6 Mains 6
2.7 Waste Water Disposal 6
2.8 Environment Emission Information 6
2.9 Dimensions 7
2.10 Technical Specifications 8
2.11 Electrical Data 9
2.12 Symbol Description 9
3. DESCRIPTION OF COMPONENTS 11
3.1 Control Panel 11
3.2 Other Components 11
4. INSTALLATION, PLACING AND LEVELING INSTRUCTIONS 12
4.1 leveling 12
4.2 Water quantity for a cycle 13
4.3 Lifting and Carrying 13
4.4 Loading and Unloading the Device 13
5. WATER QUALITY 14
6. PREPARATION BEFORE STERILIZATION 15
7. OPERATION 19
8. MAINTENANCE INSTRUCTIONS 24
8.1 Preventive and Scheduled Maintenance 24
8.2 Draining the Reservoir 25
8.3 Replacing the Door Gasket 26
8.4 Checking the Safety Valve 27
9. CLEANING TABLE TOP AUTOCLAVES WITH CHAMBER BRITE ™ 28
Page 4
Page 2 of 63 Pages
TABLE OF CONTENT (Cont.)
SERVICE AND MAINTENANCE SECTION
PARAGRAPH PAGE NO.
10. TROUBLESHOOTING 31
11. MAINTAINING AND REPLACING PARTS 34
11.1 Safety Tests after Repair 34
11.2 Dismantling the Outer Cover of the Autoclave. 35
11.3 Cleaning and Replacing Air Trap Jet 36
11.4 Replacing the Safety Valve 36
11.5 Replacing the Circuit Breaker 37
11.6 Temperature Safety Thermostat 38
11.7 Raising the Working the Temperature of the Safety Thermostat 38
11.8 Cut-Off Thermostat 39
11.9 Replacing Heating Elements 39
11.10 Replacing Multi-Purpose Valve 40
11.11 Unclogging the multi-Purpose Valve or Chamber 41
11.12 Pressure Door Lock System 41
11.13 Replacing the Door Bellows 42
11.14 Replacing the thermostat B10 43
11.15 Replacement of the Door Cover 44
11.16 Replacing the Locking Device 45
11.17 Replacing the Door Switch 46
12. LIST OF ACSSESORIES 53
13. LIST OF SPARE PARTS 54
14. CONVERSION TABLE 57
Page 5
Page 3 of 63 Pages
TABLE OF CONTENT (Cont.)
DRAWINGS PAGE NO.
Front View 10
Closing Device 46
Multi-Purpose Valve Assembly CMT240-0027 47
General View of Vessel, Door and Accessories 48
Autoclave Cover 49
Tray Handle CMT240-0001 50
Pouch Rack 50
Tray 50
Tray Holder 51
Alternative Tray Holder 51
Door Tightening Bolt – Assembly 52
Drawing of Electrical System of Table Autoclave Model 1730M 58
Drawing of Electrical System of Table Autoclave Models 2340/2540 M 59
Drawing of Electric System of Table Autoclave Model 3545 M 60
Drawing of Electric System of Table Autoclave Model 3850 M 61
Drawing of Electrical System of Table Autoclave Model 3870 M 62
Piping Diagram Table Top Autoclave Models M 63
Page 6
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 a claim 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, (800) 645-3050, Fax: (516) 334-7506
Brinkmann Instruments (Canada) Ltd., 6670 Campobello Road,
Mississauga, Ontario L5N 2L8, (800) 262-8715, Fax: (905) 826-5425
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Page 5 of 63 Pages
2. TECHNICAL DATA
2.1 Introduction
The table-top autoclave is pressure controlled automatically. It is
especially designed to meet the needs of effective and safe sterilization
in all kinds of dental and medical clinics, first aid rooms, small
laboratories etc.
The autoclave models M are electrically heated sterilizers of different
dimensions, using steam as the sterilizing agent.
It is easy to operate using the operating manual. Operator can choose
the required sterilization temperature range 212-273ºF (100-134ºC)
thus allow the instrument to be used as a sterilizer at 250ºF (121ºC) or
273ºF (134ºC). The low temperature range 212-250ºF (100-121ºC)
is designed to meet sterilization requirement when heat-sensitive
material is sterilized. The autoclave is specially designed for
sterilization of infectious waste materials prior to their disposal.
This manual is intended to give the user a general understanding of
how the autoclave works and indicate the best ways to operate and take
care of it in order to obtain optimum results and a trouble-free
operation. However, since the autoclave is built using high technology
sensitive components, no attempt should be made by the user or any
other unauthorized person to repair or re-calibrate it.
Only technical personnel having proper qualifications, and holding the
technical documentation and adequate test instrumentation are
authorized to service the instruments.
2.2 Operating Condition
This device is to be used for indoor use.
The sterilizer should be loaded only with autoclavable material.
The environment shall not exceed an ambient temperature of 40ºC and
a relative humidity of 85%.
2.3 Standards
2.3.1 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 General Safety.
4. UL61010-2-041 Particular Safety for Autoclaves.
2.3.1 Quality standards
1. EN ISO 9001:2000– Quality System
2. ISO 13485 – Quality systems – Medical devices –
Particular requirem
ents for the application of ISO 9001.
2.4 Storage conditions
The packed or unpacked autoclave shall be stored in “indoor
conditions” (protected from rain and water).
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Page 6 of 63 Pages
2.5 Construction
The main parts of the autoclave are made of materials as indicated
below:
♦ Chamber is built of stainless steel 316 L.
♦ Door is made of stainless steel 304.
♦ Trays are made of stainless steel 316.
♦ Door handle is made of hard plastic material that is safe to touch
and thermo-insulated.
♦ Water reservoir is made of hard plastic material.
2.6 Mains
For proper operation, these are the required mains:
Electricity: 230V, 15A fuse or120 V. 15A fuse as appropriate.
The network must be protected with a current leakage safety relay.
2.7 Waste Water Disposal
Caution !
Waste-water may be brought into the public water piping in accordance
with the local rules or requirements. I.e. only non-hazardous liquids
may be disposed in public sewage!
2.8 Environment Emission Information
A. The peak sound level generated by the sterilizer is « 78 / dBA with
background noise of 60 dB.
B. The total heat transmitted by the sterilizer is < 100 W/h for
1730/2340/2540 models and < 150 W/h for 3545/3850/3870
models.
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Page 7 of 63 Pages
2.9 Dimensions
1730 2340 2540 3545 3850 3870
Model
Dimensions
Inch mm Inch mm Inch mm Inch mm Inch mm Inch mm
A 17.4 440 20.0 510 20.0 510 23.2 590 26.0 660 26.0 660
B 12.0 305 14.4 365 14.4 365 17.7 450 20.7 525 20.7 525
Overall
Dimensions
C 17.9 455 21.5 545 21.5 545 21.9 556 27.5 695 34.5 875
D 29.5 750 35.8 910 35.8 910 39.0 990 45.5 1155 53.0 1335
Maximum
dimensions
(door open)
E 22.0 560 25.8 655 25.8 655 29.7 755 32.0 815 32.0 815
F1 9.2 234 11.8 299 11.8 299 19.2 488 17.7 450 17.7 450
F 13.4 339 16.6 422 16.6 422 14.6 371 22.2 564 22.2 564
G 2.0 50 2.0 50 2.0 50 2.0 50 2.0 50 2.0 50
Distance
between
supporting
legs
F1-front legs
F -rear legs
H 12.4 315 15.8 400 15.8 400 15.2 386 21.8 555 30.5 725
Diameter 6.7 170 9.1 230 10 254 12.3 312 15.1 384 15.1 384
Depth 13.4 340 18.5 470 18.7 475 15.4 391 22.8 580 29.9 760
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Page 8 of 63 Pages
Shipping
Volume
0.18 m
3
(6.35 cu.f.)
0.27m
3
(9.4 cu.f.)
0.27m
3
(9.4 cu. f.)
0.35 m
3
(12.4 cu.f)
0.63 m
3
(22.2cu.f.)
0.76m
3
(26.8cu.f)
Shipping
Weight
24.8 kgs.
(54.7 lbs.)
35.7 kgs.
(78.7 lbs.)
47.8 kgs.
(83.3 lbs.)
60 kgs
(132 lbs.)
89 kgs.
(196 lbs.)
102 kgs.
(225 lbs.)
full
2
3
4
10
15
No. of
standard
Cassettes
(Optional)
Half
2
2
3
4
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 cm
(10.1” x 16.1” x 1”)
19.8 x 40.8 x 2.5 cm
(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 liters.
(2 US gal.)
19 liters.
(5 US gal.)
23 liters.
(6 US gal.)
34.4 liters
(7.8 US gal.)
65 liters.
(17US gal)
84 liters.
(22 US gal)
Chamber
dimensions
DIA x D
17 x 34 cm
(6.7" x 13.4")
23 x 47 cm
(9" x 18.5")
25.4 x 47.5cm
(10" x 18.7")
31.2 x 39.1
(12.3” x 15.4”)
38 × 58 cm.
(15" × 23" )
38x76 cm
(15" x 30")
2.10 Technical Specifications
Model
Specifications
1730
2340
2540
3545
3850
3870
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Page 9 of 63 Pages
2.11 Electrical Data
Model
Sp
ecifications
1730 2340 2540 3545 3850 3870
Total power model 120V 8.8A 11.7A 11.7A ― ― ―
Total power model 230V 4.6A 6.0A 6.0A 10.4A 10.4A 13A
Heaters W 1050 1400 1400 1800 2400 3000
Protection against electrical shock Class I (IEC 60601-1)
2.12 Symbol Description
Caution! Hot steam.
Caution! Consult accompanying documents
Caution! Hot Surface.
Ground
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Page 10 of 63 Pages
FRONT VIEW
1. Front legs
2. Reservoir water drain valve.
3. Door tightening bolt
4. Door Micro-switch
5. Autoclave cover
6. Water reservoir cover
7. Water reservoir
8. Safety valve
9. Air trap jet
10. Pressure gauge
11. Timer
12. Pressure switch (B10) knob
13. Multipurpose valve
14. Heat indicator light
15. Dry indicator light
16. Power indicator light
17. Main power switch
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Page 11 of 63 Pages
3. DESCRIPTION OF COMPONENTS
The item numbers refer to the front view in the previous page
3.1 Control Panel
Item
Description Operation
10.
PRESSURE GAUGE
0-60 psi, (0-4bar) indicates the chamber pressure.
11.
TIMER 0-60 min.
Sets the sterilization and drying cycles and
automatically switches off the power supply to
the heating elements when the times reaches “0”.
12.
PRESSURE SWITCH
Sets the sterilization temperature for each desired
material 221-274ºF, (105-134ºC). See page 18.
Position
1. FILL
Water flows from the water reservoir into the
chamber.
2. STE.
Valve closed to all directions.
3. EXH.&
DRY
Exhausts the steam from the chamber into the
water reservoir after the sterilization cycle is
finished.
13.
MULTI-PURPOSE
VALVE
4. “ 0 ”
Heating elements are disconnected, no cycle is in
progress.
14.
HEAT INDICATOR LIGHT
Lights to indicate that the heaters are activated.
They will shut off when the temperature reaches
the desired value.
15.
DRY INDICATOR LIGHT
Lights to indicate that drying cycle is in process.
16.
POWER INDICATOR LIGHT
Light to indicate that the main switch is on.
17.
MAIN SWITCH-
Main power switch, which supplies electric
power to the autoclave.
3.2 Other Components
Item
Description Operation
2.
WATER DRAIN VALVE
Enables the drainage of water from the reservoir.
7.
WATER RESERVOIR
Holds ample water for sterilization and also
serves as a steam condenser.
8.
SAFETY VALVE
Blows off when pressure in the chamber reaches
40psi (2.7Bar) in models 1730, 2340, 2540 and
37psi in models 3545, 3850, 3870. This type of
safety valve is A.S.M.E. approved (located in
water reservoir).
9.
AIR TRAP JET
Prevents air pockets in the chamber to ensure
adequate sterilization (located in the water
reservoir).
♦
SAFETY THERMOSTAT
Prevents over-heating during the drying stage.
♦
CUT-OUT THERMOSTAT
Cuts off the power in case of overheating if the
safety thermostat does not operate. This
thermostat does not reconnect automatically but
must be reset.
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Page 12 of 63 Pages
4. INSTALLATION, PLACING AND LEVELING INSTRUCTIONS
Network
Network and connection should comply with the devices
consumption. It must comply with local installation and safety rules
and regulations. The voltage supplied to the device must comply
with the label ± 5%.
Caution:
The sterilizer must be placed on a rigid and leveled surface. The
stand must be able to hold the load of the device and loaded
material.
Note:
Make sure while placing the autoclave, to leave space around the
machine, to give the technician access to service the machine.
In order to avoid any injury by electrical hazard, it is mandatory for the
customer to have installed an earth leakage relay in the electrical board to
which the autoclave is connected.
This relay disconnects all the poles of the electrical power line in case of
accidental contact with the instrument metal enclosure, by the operator or
another person, leading to a dangerous leakage current.
Note: Keep the back and the right side of the autoclave approximately 1”
(25mm) away from the wall to allow for ventilation.
Connect the power cord to the socket on the rear side of the autoclave; plug it
into the supply socket.
4.1 leveling
The legs (2) of the autoclave are factory set for the autoclave to hold
this amount of water when the autoclave stands on a level surface (3).
To check the water level fill a beaker (4) with the recommended
quantity of water, pour the water into the chamber. The water must
reach the indicator groove (1) in front of the chamber.
1730 2340/2540 3545 3850 3870
300 ml.11 ozs. 350 ml.12 ozs. 400 ml.14 ozs. 500 ml.17 ozs. 650 ml.23 ozs.
If it is necessary, raise the front legs in order to get the proper amount
of water.
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Page 13 of 63 Pages
4.2 Water quantity for a cycle
The amount of water in the autoclave chamber necessary for each
sterilization cycles as follows:
1730 2340/2540 3545 3850 3870
350
ml.
12
ozs.
450
ml.
16
ozs.
700
ml.
25
ozs.
850
ml.
30
ozs.
1000
ml.
35
ozs.
It is imperative to have the correct amount of water for proper
operation of the autoclave!
4.3 Lifting and Carrying
Caution:
Before moving the autoclave, make sure that the electric cord is
disconnected from the power source and that there is no pressure in
the chamber.
1. Disconnect the power supply cord.
2. Drain the water from the reservoir and vessel.
Lifting and carrying should be done by two people.
Do not drop the device!
4.4 Loading and Unloading the Device
Protective equipment and clothes should be implemented in accordance
to local and national regulations and/or rules!
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Page 14 of 63 Pages
5. 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 sterlizers
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 Colourless, 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.
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Page 15 of 63 Pages
6. PREPARATION BEFORE STERILIZATION
The purpose of packaging and wrapping of items for sterilization is to provide
an effective barrier against sources of potential contamination in order to
maintain sterility and to permit aseptic removal of the contents of the pack.
Packaging and wrapping materials should permit the removal of air from the
pack, penetration of the sterilizing water vapor into the pack and removal of
the sterilizing vapor.
The basic principle determining the size, mass and contents of instrument and
hollowware packs is that the contents are sterile and dry immediately on
completion of the drying cycle and removal of the pack from the sterilizer
chamber.
Instruments to be sterilized must be clean, free from any residual matter, such
as debris, blood, pads or any other material. Such substances may cause
damage to the contents being sterilized and to the sterilizer.
1. Immediately after use, clean instruments thoroughly to dispose of any
residue.
2. It is recommended to wash instruments with an ultrasonic cleaner, using
detergent and mineral-free water.
3. Launder textile wraps prior to reuse.
4. After cleaning, rinse instruments for 30 seconds. (Follow manufacturer’s
instructions on the use of products for cleaning and lubricating
instruments after using the ultrasonic cleaner).
5. Materials, including materials used for inner wraps, shall be compatible
with the item being packed and the sterilizing method selected.
6. Do not place materials to be sterilized directly on the chamber’s wall.
Place the material only on trays, rack, etc.
7. Before placing an instrument into the sterilizer tray, make sure that
instruments which are not of the same metal, (stainless steel, carbon
steel, etc.) are separated and placed on different trays.
Note: Check manufacturer’s instructions for the sterilization of each
item.
8. In case carbon steel instruments are placed on stainless steel trays, the
trays should be lined with a towel or paper wrap before placing the
instruments on the trays. There should be no direct contact between the
carbon steel and the stainless steel trays.
9. All instruments must be sterilized in an open position.
10. Use single-use wraps once only and discard after use.
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Page 16 of 63 Pages
11. Verify that the packaging method is in accordance with good practice
approach and the packaging materials are in accordance with the
applicable standards (e.g. EN868 series).
12. Place a sterilization indicator strip in each tray.
13. Place instruments with ratchets opened and unlocked or clipped on the
first ratchet position.
14. Disassemble or sufficiently loosen multiple-part instruments prior to
packaging to permit the sterilizing agent to come into contact with all
parts of the instrument.
15. Tilt on edge items prone to entrap air and moisture, e.g. hollowware, so
that only minimal resistance to air removal, the steam passage and
condensate will be met.
16. Load items within the boundaries of the tray so that they do not touch
the chamber walls, or fall off when the loaded car is inserted into the
autoclave.
17. The operator may use racks to allow for adequate separation of packaged
instruments.
18. Load trays loosely to capacity.
19. Once a week, use a biological spore test indicator in any load to make
sure sterilization is performed.
20. Make sure that all instruments remain apart during the sterilization cycle.
21. Empty canisters should be placed upside-down, in order to prevent
accumulation of water.
22. Allow a distance of approximately 2.5 cm (1”) between trays to permit
steam circulation.
23. Wrapped Instruments
Wrapped instruments should be packed in material that promotes drying
such as autoclave bag, autoclave paper, and muslin towels.
It is highly recommended to utilize the Tuttnauer Pouch Rack. This
rack allows the operator to place pouches on their side, thus increasing
the capacity of the autoclave significantly and promoting better drying of
the instruments. Contact your dealer for details.
Note:
A table “Suitability of steam sterilization processes for various goods and
method of packing” is added to the accompanying documents.
Pouch Rack
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Page 17 of 63 Pages
24. Packs
1. Place packs upright on trays, side by side.
2. Packs should not touch the chamber walls.
3. Pack instrument sets in a manner that prevents damage to delicate
items.
4. Pack hollowware sets so that all openings face the same direction
and so that the contents cannot move inside the pack.
5. Load packs of folded operating room drapes with layers vertical,
allowing air to be removed from the packs rapidly.
6. Do not place packs of hollowware and trays of instruments above
textile packs or soft goods in order to avoid wetting caused by
condensation from items above.
7. Load items packed in flexible packaging materials on edge with
paper to laminate, or flat with the paper surface downwards.
Note:
The manufacturer’s recommendations shall be observed, concerning
the sterilization data for each type of material.
25. Tubing
When placing in a tray, make sure that both ends are open, without sharp
bends or twists.
Wrong
Right
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Page 18 of 63 Pages
26. Liquids
Use only heat-proof glass, filled to 2/3 capacity. Ensure that the glass
container is covered, but not sealed to prevent pressure build-up.
Note: A table of suitability steam sterilization process for various
goods and methods of packing is included with accompanying
documents.
Liquids
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Page 19 of 63 Pages
7. OPERATION
To avoid possible damage, do not leave the autoclave un-attended while in
operation
1. Ensure that the drain valve is in a CLOSED position.
2. Remove the water reservoir cover.
3. Pour distilled or mineral-free water into the reservoir through the opening
on top of the autoclave until it reaches the base of the safety valve holder
(the base must no immerse in the water.
3.1 Verify that the water quality is according to the requirement specified
in para. 7.
Caution
Under no circumstances should water be filled above the Safety Valve
Holder.
Use distilled or mineral-free water only. Tap water may block the hole of the
air trap jet. This causes air pockets that prevent the temperature from rising. It
is essential that from time to time during the sterilization period, a spray of
steam should escape, causing a hissing sound. If no steam is evident, follow
instructions for air trap jet cleaning procedure (para. 11.2).
Caution:
Daily before operation, check the water level in the reservoir and add water
when required. Once a week or after 20 cycles (the shorter period) replace
the water in the reservoir.
4. Insert the plug into the socket at the rear of the autoclave.
5. Insert the plug into the electrical source.
6. Turn the main switch to START position.
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Page 20 of 63 Pages
7. Set the multi-purpose valve knob to the FILL position. The water will
now flow into the chamber. When the water reaches the mark at the
bottom of the autoclave set the multi-purpose valve knob to the
STE.(sterilize) position.
Note: When used for the first time, the multi-purpose valve requires slight
effort, but with use it will turn smoothly and easily.
Warning
Multi-purpose valve knob should be turned in a clock-wise direction only!
8. Load the autoclave.
Note: Using the drums is not recommended.
9. Shut the door and move the door tightening bolt handle clockwise until it
is closed tightly.
Note:
Due to inherent elasticity of the door gasket, the HEAT indicator light
may indicate that the door is closed before a complete seal is made
between the door and the chamber.
Therefore, in order to ensure the door is fully sealed, continue to
tighten the door bolt until “hand-tight”. Do not over - tighten the bolt
as this may result in damage to the gasket.
10. Turn the pressure switch (B10) knob to the desired sterilization
temperature.
230ºF-273ºF (110ºC-134ºC) 0-32Psi (1-2.1Bar)
This autoclave is designed according to all international standards, which
allows the temperature to raise 4ºF (2ºC) over the working temperature.
If this discrepancy effects your working procedures, you may decrease the
working temperature by turning the pressure switch (B10) knob slightly
counter clock-wise.
Caution:
VERY IMPORTANT!
The Temperature scale on the panel is very accurate, however due to
sensitivity of the pressure switch (B10), slight differences may occur. An
adjustment of the pressure switch (B10) knob may have to be made
upon initial installation, so that the pressure gauge shows as follows:
16 - 18psi for 250ºF 1.1 - 1.2 Bars for 121ºC
30 - 32psi for 273ºF 2 - 2.1 Bars for 134ºC
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Page 21 of 63 Pages
11. Set the STE. timer to the desired sterilization period according to the
Sterilization Time Table (see table ahead). Recommended times for a, b, c
are based on tests performed with a load according to Sterilization Load
Test Table:
Sterilization Load Test Table
Loads
Models
kg lbs
1730 1.5 3.3
2340 3.2 7.0
2540 4.0 8.8
3545 5.0 11.0
3850 6.0 13.6
3870 8.0 17.5
Sterilization Time Table
TOTAL TIME
(from start to finish)
MATERIAL
STE.
TEMP
Cold
Start
Hot
Start
MODELS
a. Unwrapped instruments, open
glass or metal containers and
any other items where such
temperature is suitable
273ºF
(134ºC)
30min.
35min.
20min.
25min.
1730,
2340,
2540
3545,
3850,
3870
Single Instruments
b. Wrapped instruments, standard
cassettes, rubber tubing and
any other items where such
temperature is suitable.
273ºF
(134ºC)
40min.
45min.
30min.
35min.
1730,
2340,
2540
3545,
3850,
3870
c. Packs and any other items
where such temp. is suitable.
273ºF
(134ºC)
45min. 35min.
all
models
d. Liquids and any other items
where such temp. is suitable
250ºF
(121ºC)
60min. 50min.
all
models
These recommended sterilization times are based on a voltage supply of
120V or 230V. If the voltage supplied is less than 120V or 230V,
additional time must be added.
Temperature lower than 250ºF (121ºC) can be achieved by setting the
pressure switch (B10) knob at the desired temperature.
Page 24
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12. The POWER light is lit during the entire sterilization period, indicating
connection to the power. The HEAT indicator signifies the operation of
the pressure switch (B10), which keeps the temperature stable by
connecting and disconnecting the heating elements. When the timer
reaches 0, the sterilization process is complete and a buzzer will indicate
that the cycle is complete.
13. If a cycle with drying is required proceed according to para. 14.
If a cycle without drying is required proceed according to para. 15
14. Cycle with drying
14.1 When the pressure gauge reaches 0,
release the locking device and open
the door slightly, in order to permit the
steam to evacuate
14.2 Set the timer on 20-30minutes. Drying
indicator lamp will light.
14.3 When the time is over, turn the
multi-purpose valve knob to "0"
position.
14.4 Open the door and Remove the load.
Warning
Multi-purpose valve knob should be
turned in a clockwise direction only.
15. Cycle without drying
15.1 Turn immediately, the multi-purpose valve knob to EXH.+DRY
(Exhaust and Dry) position.
15.2 When the pressure gauge reaches 0, turn the multi-purpose valve
knob to "0"
15.3 Open the door to remove the load.
Warning
Multi-purpose valve knob should be turned in a clockwise
direction only.
Note:
The sterility of instruments processed in unwrapped cycles
cannot be maintained if exposed to a non-sterile environment.
Page 25
Page 23 of 63 Pages
16. Liquids
16.1 When sterilizing liquids, it is essential to leave the multi-purpose
knob on sterilization position after the sterilization cycle is over,
letting the steam escape slowly.
16.2 It is recommended to put the bottles on an un-perforated tray,
which can be ordered at Tuttnauer, to prevent the clogging of the
vessel opening in case the liquid starts boiling.
16.3 When the pressure decreases to “0” open the door and unload the
autoclave.
16.4 Turn the multi-purpose valve knob to 0.
Warning
Multi-purpose valve knob should be turned in a clock-wise
direction only.
Caution
If the door handle cannot be turned counter-clockwise for the door
to be opened, the reason may be that the pin is set firmly in the
groove. In order to release the pin, slightly turn the handle in the
closing direction (clockwise). The pin is released, enabling the
operator to open the door. In case the door still cannot be opened,
refer to the instructions in the chapter “Pressure Door Lock
System” (para. 11.11).
NOTE:
After operating the sterilizer, brown stains might appear on the bottom of
the chamber. These stains are a result of the heating elements that are
located at the lower external part of the chamber. The brown color is a
common phenomenon, can be easily be removed, and will not have any
effect on the steriliszed goods.
At the end of the working day turn the main switch to "STOP" position.
Page 26
Page 24 of 63 Pages
8. MAINTENANCE INSTRUCTIONS
8.1 Preventive and Scheduled Maintenance
The maintenance operations described in this chapter have to be fulfilled
periodically, to keep the autoclave in good condition and to reduce the
breakdown time to a minimum. These operations can easily be executed by
the users maintenance personnel, according to the instructions provided
ahead.
8.1.1 Daily
Clean the door gasket with a soft cloth or a sponge.
Caution
Before starting, ensure the electric cord is disconnected and
there is no pressure in the autoclave.
8.1.2 Weekly
1. Take out the tray holder and trays. Clean the tray holder and
trays with a cleaning agent & water and with a cloth sponge.
You may use diluted lemon acid (25-50 CC lemon acid in 1
liter of water) as cleaning agent. If detergent is used, rinse the
tray holder and trays immediately with water to avoid stains
on the metal.
Do not use steel wool or steel brush as this may damage
the chamber!
2. Once a week clean and descale the chamber, copper tubes
and the reservoir using ‘Chamber Brite ™’.
3. Put a few drops of oil on the 2 door pins and door tightening
bolts.
4. Clean the outer parts of the autoclave with a soft cloth.
5. Once a week drain the water from the reservoir, and pour
fresh mineral-free water or distilled water; refer to
recommendations of water quality – para. 5.
8.1.3 Periodical tests
1. Once every month check the safety valve - refer to para. 8.4.
2. Once every month check the air trap jet - refer to para. 11.2.
3. Check the door gasket every 12 months and replace it if
required (see para. 8.3).
4. Once a year check and tighten the piping joints to prevent
leakage.
5. Once a year check and tighten all screw connections in the
control box, heaters and valves and instrumentation. This
must be done by a qualified electrician.
6. Once a year calibrate the pressure switch (B10).
7. Every 5 years test the locking device for excessive wear.
8. Perform safety tests according to local rules and regulations.
Recommendation
For OPTIMAL cleaning and de-scaling, use Tuttnauer’s powdered cleaner,
‘Chamber Brite ™’ which is user friendly and has excellent results.
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8.2 Draining the Reservoir
1. Turn the drain valve counter-clockwise (1turn) to drain the water.
2. Turn the drain valve clockwise to CLOSE position.
3. Fill the reservoir with distilled or mineral-free water up to the base
of the safety valve holder.
4. Connect the electric cord to the power source.
The autoclave is ready for use:
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8.3 Replacing the Door Gasket
Pull off the gasket from the door groove, thereby installing the new
gasket referring to the drawings above 1, 2 and 3.
Caution!
This gasket is designed with a trapezoidal cross section. The
gasket should be placed with the widest side towards the door.
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8.4 Checking the Safety Valve
(Located in the water reservoir.)
In order to prevent the safety valve from blockage, every two months,
under ordinary usage, it is necessary to allow the steam pressure to
escape through it.
Checking the safety valve shall be performed during any cycle, when
the pressure in the chamber is approx. 200 kPa (29 psi).
1. Remove the water reservoir cover.
2. Pull the ring of the safety valve using a tool (screwdriver, hook
etc.) and open the safety valve for 2 seconds. Be careful not to
burn your hands.
3. Verify that the valve releases steam and closes immediately.
4. If the safety valve is stuck in the ‘open” position, stop the
operation of the autoclave and let the pressure decrease to zero
(atmospheric pressure).
5. After the pressure in the chamber decrease to zero, pull the valve
ring and release the valve.
6. Repeat operations 1 to 3.
7. If the valve is stuck again in open position, call for service.
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9. CLEANING TABLE TOP AUTOCLAVES WITH CHAMBER BRITE ™
CHAMBER BRITE ™ is a cleaning and descaling agent designed specifically
for the cleaning and removal of water deposits, oxides and other sediments
that are found in steam sterilizers. The material is a combination of acidic salts
and additional cleaning materials.
Cleaning Procedure
1. Important – all steps in this procedure
must be completed without interruption.
2. When the autoclave chamber is cold,
remove instruments and trays from the
autoclave.
3. Open the door and spread the contents of
a packet in a straight even line along the
bottom of the chamber, from back to
front.
4 Start a sterilization cycle* with water
and No Drying Cycle according to the
manufacturers instructions. When the
cycle is finished exhaust the unit.
5. At the end of the exhaust cycle drain the
water the reservoir.
6. Fill the water reservoir with distilled
water.
7. Repeat a sterilization cycle without
Chamber Brite™ powder, to remove any
excessive dirt in the pipes. Start a
sterilization cycle* with water and No
Drying Cycle according to the
manufacturers instructions. When the
cycle is finished exhaust the unit
8. At the end of the exhaust cycle drain the
water from the reservoir.
9. Turn the autoclave off and allow
chamber to cool.
10. Remove the tray holder; wipe the interior
of the chamber with a damp cloth.
11. Fill the reservoir with distilled water or
mineral free water only.
12. Wipe the tray holder with a damp cloth
and return it to the chamber.
13. Turn fill knob to fill position and allow a
small amount of water (2-4 ounces) to
fill chamber. Remove water from
chamber.
14. The instrument is ready to use.
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IMPORTANT:
DO NOT sterilize instruments during the cleaning process!!!
CAUTION:
Keep out of reach of children. Contains mildly acidic ingredients. Avoid
contact with the skin, eyes or clothing. Wash hands well after touching the
powder, in the case of eye contact flush with continuous running water for
at least 15 minutes. If irritation persists get medical attention. If
accidentally swallowed, do not induce vomiting, drink large amounts of
water and obtain medical attention. MSDS available upon request.
For models 1730, 2340, 2540 use one packet of CHAMBER BRITE ™.
For models 3545, 3850, 3870 use two packets of CHAMBER BRITE ™.
Clean every 20 cycles or as needed.
* Total cycle time for cleaning Tuttnauer “M” series is 30 minutes at 273°F
(134°C). All cycles referenced are from a cold start.
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SERVICE AND MAINTENANCE SECTION
Caution:
These servicing instructions are for use by qualified personnel only.
To avoid electric shock, do not perform any servicing other than
that contained in the operating instructions unless you are qualified
to do so.
Refer all servicing to qualified service personnel.
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10. TROUBLESHOOTING
Symptom Possible Cause Correction
1. Multi-purpose valve is
in FILL position.
Water does not enter
into the chamber.
1.1 No water in the
reservoir.
1.2 Multi-purpose valve of
chamber is clogged.
1.3 The pipe is clogged.
1.1 Fill the reservoir with
mineral-free water.
1.2 Follow instructions in
para. 11.10.
1.3 Follow instructions in
para. 11.10.
2. While main switch is in
START position
POWER indicator light
does not light up.
2.1 No power supply.
2.2 Circuit breaker tripped.
2.3 Main Switch is
defective.
2.4 Set timer for 15 minutes.
Turn the multi-purpose
valve to “DRY” position.
If “HEAT” & “DRY”
lights are on then
“POWER” bulb is burnt.
2.5 If also “HEAT” &
“DRY” lights are not on
then the electrical line is
faulty.
2.1 Restore power supply.
2.2 Lift the lever of the
circuit breaker.
2.3 Check and replace it if
necessary.
2.4 Replace “POWER” bulb.
2.5 Check and repair the line
from the entry until the
main switch.
3. Multi-purpose valve is in
STE. position, main
switch in ON position.
Timer and pressure switc
h
(B10) are in any working
position and the door is
closed tightly.
3.1 “HEAT” light is not on
but the autoclave operates
3.2 “HEAT” light is not on
and heating is insufficient
.
3.3 “HEAT” light is not on
and there is no heating.
3.1.1 Burnt bulb.
3.2.1 Pressure switch (B10)
set to too low
temperature
3.2.2 Microswitch No.2 is
faulty.
3.2.3 Bridge No. 10 is
faulty.
3.3.1 Pressure switch (B10)
is faulty.
3.3.2 Safety thermostat
3.1.1 Replace faulty bulb.
3.2.1 Adjust the pressure
switch (B10).
3.2.2 Replace the faulty
Microswitch.
3.2.3 Fix the bridge.
3.3.1 Fix or replace the
faulty pressure switch
(B10).
3.3.2 Fix or replace the
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Page 32 of 63 Pages
faulty. faulty thermostat.
Symptom Possible Cause Correction
3.3 “HEAT” light is not on
and there is no heating.
(cont.)
3.3.3 Timer is faulty.
3.3.4 Microswitch No.3 is
faulty.
3.3.5 Pressure switch
(B10) is faulty.
3.3.6 Door switch is faulty.
3.3.3 Fix or replace the
faulty timer.
3.3.4 Fix or replace the
faulty microswitch.
3.3.5 Fix or replace the
faulty pressure
switch (B10).
3.3.6 Fix or replace the
faulty door switch.
4. Multi-purpose valve on
STE. position. POWER
and HEAT indicator
lights are lit.
Temperature and
pressure are not
sufficient.
4.1 Water level is lower than
required.
4.2 Pressure switch (B10)
(B10) is not calibrated.
4.3 Steam escapes from
safety valve.
4.4 Air trap jet hole leaks
excessively.
4.5 Steam escapes from the
door seal.
4.6 Steam escapes from
piping connections.
4.1 Add water per para. 4.
4.2 Calibrate the pressure
switch (B10).
4.3 Pull safety valve ring for
2 seconds, then release.
If leakage continues,
replace it.
4.4 Replace the air trap jet.
4.5 Tighten door locking
bolt. If leakage persists,
replace door seal.
4.6 Locate leakage and
repair faulty piping
connection.
5. Pressure builds up very
slowly.
5.1 One or more heaters are
burnt.
5.2 Too much water in the
chamber.
5.3 Door gasket leakage.
5.4 Safety thermostat is not
set to the right temp
(stops heating in the
“increase pressure” stage).
5.1 Check and replace
heaters if necessary.
5.2 Check if chamber holds
the correct amount of
water (para. 4).
5.3 Tighten a bit more, if
leakage continues,
replace gasket.
5.4 Calibrate the thermostat.
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Page 33 of 63 Pages
Symptom Possible Cause Correction
6. Temperature safety
device is activated
during the ste. cycles
due to overheating.
6.1 Amount of water in
chamber is insufficient.
6.2 The thermostat is not set
to the right temperature.
6.3 Multi-purpose valve is
leaking. Water returns to
water reservoir.
6.4 Safety valve is leaking.
6.5 Air trap jet leaks
excessively.
6.1 Add water per para. 4.
6.2 Set the thermostat to the
right temperature.
6.3 Replace the valve (see
para. 11.9).
6.4 Replace the safety valve
(see para. 11.3).
6.5 Replace air jet (see para.
11.2)
7. Autoclave in STE.
position. Pressure safety
valve is activated and
heating continues.
7.1 Faulty pressure switch
(B10) does not stop
heating when reaching
required temp.
7.2 Pressure safety valve is
faulty.
7.1 Fix or replace the
pressure switch (B10).
7.2 Replace the Pressure
safety valve.
8. Dry operation does not
work.
8.1 Dry microswitch MSw2
not actuated or faulty.
8.2 Timer board faulty.
8.1 Replace microswitch.
8.2 Replace timer board.
9. Door handle cannot be
turned counter clockwise
for opening.
9.1 Door pin set in groove.
9.2 Door locking system stuc
k
or bellows damaged.
9.1 Slightly turn handle in
closing direction
(clockwise), then attempt
to open.
9.2 If problem persists, refer
to “Pressure Door Lock
System” in the service
section. After opening
the door, replace the
bellows.
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11. MAINTAINING AND REPLACING PARTS
11.1 Safety Tests after Repair
ATTENTION!
After every repair or dismantling the enclosure, the autoclave
should pass two safety electrical test by the Service Engineer. The
following shall be performed:
1. Enclosure Leakage Current Test.
Every autoclave should pass this test as follows:
1. Connect the electrical cord to the autoclave.
2. Turn on the main switch and the circuit breaker.
3. Short-circuit the L and N pins on the cord's plug.
4. Connect the Short-circuit pins to the L pole on the Megger.
5. Connect the earth pins to the earth pole on the Megger.
6. Impose an electrical potential of 500-1000V on the tested
autoclave. The insulation resistance should be at least 2 MΩ.
The test is successful if there was no leakage.
2. Protective Earth Impedance Test
1. Connect the grounding pin of the power cord plug to one pole
of an Ohmmeter.
2. Connect any other metallic part (preferable – the metallic part
of the locking screw) to the second pole of the Ohmmeter.
3. The resistance should not exceed 0.3 Ω.
After performing these tests, the Service Engineer should complete and
sign the Work Order.
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11.2 Dismantling the Outer Cover of the Autoclave.
Caution:
Allow the instrument to cool before removing the outer covers.
Warning:
Before starting disconnect the instrument from the power source and
make sure there is no pressure in the autoclave.
Then proceed as follows:
1. Remove the screws holding the rear cover (1).
2. Remove the screws holding the cover to the base (2).
3. Pull the cover upwards.
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11.3 Cleaning and Replacing Air Trap Jet
(Located in the water reservoir)
The elimination of air pockets from the sterilization chamber during heating
and sterilization phases is achieved by means of the air trap jet.
This device consists of a small orifice that is obtrusive and opened by a
small wire moving forth and back.
The air pockets and small steam quantities are pushed up by the steam
pressure and evacuated through this orifice.
Caution:
Before starting, ensure that the electric cord is disconnected and that
there is no pressure in the autoclave.
1. Remove the water reservoir cover.
2. Clean the hole of the jet by manipulating the air trap wire back and forth
(A).
3. In case it is necessary to replace the air trap jet, allow the instrument to
cool and the pressure to drop to 0 before removing the jet.
It is important to clean the hole of the air trap, as described at point 2
before starting operation of the autoclave, for the first time.
11.4 Replacing the Safety Valve
Caution
Before starting, be sure that the electric cord is disconnected and that
there is no pressure in the autoclave.
1. Remove the water reservoir cover.
2. Unscrew the safety valve and remove it from the safety valve base.
3. Replace it with a new safety valve (ensure the safety valve is an original
one!)
4. Test all autoclave.
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11.5 Replacing the circuit breaker
Caution!
Before starting, disconnect the instrument from the power source.
1. Remove the autoclave cover (see para. 11.2 “Dismantling the Outer
Covers of the Autoclave”).
2. Disconnect the wires from the circuit breaker.
3. Remove the four screws connecting the circuit breaker to the panel (1).
4. Replace the circuit breaker with a new one.
5. Reconnect the electrical wires.
6. Reassemble the cover.
7. Turn on the autoclave and verify it operates correctly.
8. Move the circuit breaker’s lever to the “tripped” position and verify that
the autoclave turns off.
Make sure that the correct circuit breaker is installed as marked in the
table below!
1730 2340/2540 3545 3850/3870
Description
120V 230V 120V 230V 230V 230V
Circuit breaker
15A 10A 15A 10A 10A 15A
Circuit breaker leve
r
c
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11.6 Temperature Safety Thermostat
(Located on the rear side of the heaters)
The autoclave is supplied with a temperature thermostat that maintains the
temperature during the dry stage, by connecting and disconnecting the
electric power.
This device automatically disconnects the heating elements in case of a rise
in temperature.
The electric power is automatically reconnected when the chamber cools
down.
♦ To replace this safety thermostat, remove the rear cover, unscrew the
thermostat and replace it.
11.7 Raising the Working the Temperature of the Safety Thermostat
Caution:
Only authorized technician should do this operation!
1. Unscrew the rear cover of the autoclave.
2. With a screwdriver, turn the central screw slightly clockwise to raise the
temperature.
3. Replace the rear cover.
Safety Thermostat
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11.8 Cut-Off Thermostat
This thermostat cuts out power to the autoclave, in the event that all other
safety systems do not function. For example: if the operator forgets to fill the
chamber with water, and starts the sterilization cycle, the chamber will heat
up and activate the cut-off thermostat. In order to restart the operation, press
the RESET button. If the autoclave is operated according to the instructions,
and the thermostat cuts off, a technician should be called.
The thermostat has been calibrated by the manufacturer of the autoclave.
Do not attempt to re-calibrate it
11.9 Replacing Heating Elements
Caution:
Before starting, ensure that the electric cord is disconnected from the
power source and there is no pressure in the autoclave chamber.
1. Dismantle the autoclave cover (see para. 11.2 “Dismantling the Outer
Covers of the Autoclave”).
2. Release the two terminal wires from the heating element.
3. Remove the heater tightening bolts (1).
4. Replace the damaged heating element with a new one and reconnect the
two terminal wires.
5. Re-assemble the autoclave cover.
6. Test all the autoclave cycles.
Cut-Off Thermosta
t
Reset Button
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11.10 Replacing Multi-Purpose Valve
Caution:
Before starting, make sure that the electric cord is disconnected from
the power source and there is no pressure in the autoclave chamber.
1. Dismantle the autoclave cover (see para. 11.2 “Dismantling the Outer
Covers of the Autoclave”).
2. Drain the water from the water reservoir.
3. Pull the valve knob out.
4. Unscrew the 3 nuts that tighten the copper tubes to the multi-purpose
valve.
5. Unscrew the nut holding the valve to its base.
6. Pull out the valve.
7. Replace it with a new one. Make sure that the valve is tightened to the
valve base.
8. Reconnect the three tube nuts.
9. Return the valve knob to its place.
10. Turn the valve knob to FILL position.
11. Pour water into the reservoir.
12. Check the copper tube connections for leakage.
13. Replace the cover and tighten it to the base.
Occasionally, it is necessary to take off the screws that are on the shaft of the
valve in order to take the valve out of its base.
After installing the new valve, the screws should be replaced according to
the sketch on page 47.
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11.11 Unclogging the multi-Purpose Valve or Chamber
VERY IMPORTANT!
When sterilizing cotton wool or pads, it is essential to wrap them in
paper or cotton bags in order to prevent the multi-purpose valve and
the autoclave openings from becoming clogged with remnants of the
material.
1. Pour distilled water into the chamber, according to quantities mentioned
in para. 4 (Installation, Placing and Leveling Instructions).
2. Close the door.
3. Turn the multi-purpose valve to STE. position.
4. Turn the timer knob to 20 min.
5. Turn the pressure switch (B10) knob to either 250 or 274ºF (121 to
134ºC).
6. Turn the main switch to START position.
7. After the timer has reached “0” turn the multi-purpose valve (clockwise)
to the FILL position.
In most cases, the pressure pushes the obstructing substance out, and the
steam exhausts into the water reservoir.
8. When the pressure gauge reaches 0, turn the multi-purpose valve to the
OFF position, and the main switch to STOP.
9. Open the door.
10. Replace the water in the water reservoir.
The autoclave is ready for the next cycle.
11. If this procedure does not clear up the clogging, replace the multipurpose valve.
11.12 Pressure Door Lock System
This safety device prevents the door from opening when the chamber is
pressurized.
The system is based on the built up pressure in the chamber that pushes the
Silicon-rubber bellows and the pin into the grove of the tightening bolt. This
prevents the operator from opening the door. When the steam is released,
this bellow returns to its original position, drawing the pin with it thus
releasing the tightening bolt.
Should there be no pressure in the chamber, and the door cannot be opened,
the following procedure should be observed.
1. Turn the handle of the multi-purpose valve to EXH. & DRY.
2. The steam exhaust valve pipe is open and air inserts the chamber. In this
stage the door can be opened.
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11.13 Replacing the Door Bellows
(Located in the Door Bridge)
Caution:
Before starting, be sure that there is no pressure in the autoclave
chamber.
1. Open the door.
2. Unscrew and remove the tightening screw (5).
3. Gently pull out the door safety device locking pin (13).
4. It is possible that the washers (7, 10) will be stuck - if so, push
them out by introducing pressurized air through the steam inlet
hole.
5. Reconnect the door device locking pin (13) into a new silicone
bellows (12).
6. Put the silicone bellows (12) and pin (13) into the bellows housing
(14) and replace the washers (7,10).
7. Reconnect all the above into the door bridge.
8. Re-screw and tighten the tightening screw (5).
9. Test all autoclave cycles.
LOK240-0026 LOK240-0025
LOK240-0023 GAS080-0020 CMT067-0002
GAS080-0006
Page 45
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11.14 Replacing the pressure switch B10
Caution:
Before starting, be sure that the electric cord is disconnected from the
power source and that there is no pressure in the autoclave chamber.
1. Remove the autoclave cover (see para. 11.2 “Dismantling the Outer
Covers of the Autoclave”).
2. Unscrew the nut (1) connecting the pressure pipe (the pipe
connecting the pressure switch to the chamber).
3. Remove the isolating cover.
4. Remove the pressure switch knob.
5. Unscrew the 2 screws connecting the pressure switch to the panel
(located under the pressure switch knob).
6. Unscrew the nuts connecting the wires to the pressure switch (2).
7. Remove the pressure switch and replace it with a new one.
8. Reconnect the electrical wires.
9. Reassemble the pressure switch to the panel.
10. Reassemble the knob and the pressure pipe.
11. Re-assemble the isolating and the autoclave cover.
12. Test and calibrate the pressure switch.
13. Test all the autoclave cycles and verify it operates correctly.
1
2
Page 46
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11.15 Replacement of the Door Cover
Caution:
Before starting, be sure that the electric cord is disconnected from the
power source and that there is no pressure in the autoclave chamber.
1. Unscrew the four screws attaching the door cover and remove the
door cover. Since the screw pressing the door microswitch
includes two washers and a spring, be aware not to lose them.
2. Reassemble the new cover.
3. Insert screw (1) until dimension A is approximately 15 mm.
3.1 Please note that on model 3140 two washers (2) are placed
between the spring (4) and the door.
4. Perform final adjustment of the screw as follows:
4.1 While the autoclave is disconnected from electricity turn on
the circuit breaker.
4.2 Connect the electrical plug to a multi-meter.
4.3 Press the microswitch and verify that the microswitch
functions as required.
4.4 Close the door and verify that the microswitch operates.
4.5 If the microswitch does not operate unscrew the screw one
turn counter-clockwise and check per para. 4.4. Repeat until
microswitch operates.
4.6 Connect the autoclave to electricity.
4.7 Close the door until the microswitch indicates that the door is
closed. Operate the autoclave and verify that there is no steam
or pressure leak.
4.8 If there is steam leak, stop the autoclave’s operation, reduce
steam pressure, open the door and turn the screw one turn
clockwise and check per para. 4.7. Repeat until leakage
ceases.
No. Description Model Cat. No. No. Description Model Cat. No.
2340, 2540 BOL191-0032
3 Washer
All models ELE036-0009
1 Screw
1730, 3545,
3850, 3870
BOL191-0091
4 Spring
All models SPR177-0012
2340, 2540 BOL191-0033 1730 POL065-0001
3545 BOL191-0115 2340, 2540 POL066-0002
3545 COV314-0001
2 Screw
1730, 3850,
3870
BOL191-0140
5
Door
cover
3850, 3870 POL065-0004
4
1
3
3
2
5
Page 47
Page 45 of 63 Pages
11.16 Replacing the Locking Device
Caution:
Before starting, verify that there is no pressure in the autoclave
chamber.
1. Remove the security ring (9) using a special tool.
2. Remove pin (6).
3. Remove locking device. Take care not to lose the Teflon disk (10).
4. Reassemble the new locking device.
5. Insert the pin (6).
6. Reassemble the security ring (9).
CLOSING DEVICE
No.
Description
No.
Description
1 Bushing 6 Door locking device pin
2
Door tightening bolt
assembly
7 Bakelite handle
3 Locking screw housing 8 Closing bridge “c” clip
4 Locking base 9 Cotter pin
5 Locking housing axis 10 Teflon disk
Page 48
Page 46 of 63 Pages
11.17 Replacing the Door Switch
Caution!
Before starting, disconnect the instrument from the power source and
ensure that there is no pressure in the autoclave.
Allow the autoclave to cool before removing outer covers.
1. Remove the autoclave cover (see para. 11.2 “Dismantling the
Outer Covers of the Autoclave”).
2. Disconnect the wires (1), (2) from the door switch (3).
3. Remove the microswitch and replace it with a new one.
4. Reconnect the wires the microswitch. Verify that the wire is placed
on the isolating cover (4) and does not touch the chamber.
5. Reassemble the door cover.
6. Test the connection with an ohmmeter. In “open” position the
ohmmeter shows disconnection and in “close” position the
ohmmeter shows connection.
3
2
1
4
Page 49
Page 47 of 63 Pages
MULTI-PURPOSE VALVE ASSEMBLY CMT240-0027
Position of Micro-Switches and their Operation Situation
M.Sw Stage -0- Fill Ste. Exh. + Dry
M.Sw.1 Tight Tight Loose Loose
M.Sw.2 Loose Loose Loose Tight
M.Sw.3 Loose Loose Loose Tight
Notes:
1. Microswitches MSw1 - STER. and MSw. 2- DRY are actuated by the multipurpose valve.
2. Microswitch MSw3 - Door Sw. is actuated by the door and is in pos. ON when
the door is closed.
Page 50
Page 48 of 63 Pages
GENERAL VIEW OF VESSEL, DOOR AND ACCESSORIES
Door
Closing device
Chamber
Page 51
Page 49 of 63 Pages
AUTOCLAVE COVER
Page 52
Page 50 of 63 Pages
TRAY HANDLE CMT240-0001
For 1730, 2340, 2450 models only
POUCH RACK
TRAY
CAT No. TYPE
2340
ACS215-0008
2540
ACS215-0010 3870
MODEL SIZE CAT. No.
1730 TRY173-0001
2340 TRY240-0001
2540 TRY240-0001
Big TRY314-0001
3545
Small TRY314-0002
Big TRY385-0003
3850
Small TRY385-0004
Big TRY387-0001
3870
Small TRY387-0003
Page 53
Page 51 of 63 Pages
TRAY HOLDER
ALTERNATIVE TRAY HOLDER
These tray holders are designed for use in models 2340 & 2540 only.
MODEL TRAY HOLDER CAT. NO.
1730 TRH173-0001
2340 TRH234-0001
2540 TRH254-0001
3545 TRH314-0000
3850 TRH385-0001
3870 TRH387-0001
Model Tray holder cat. No.
2340 TRH234-0008
2540 TRH254-0009
Page 54
Page 52 of 63 Pages
DOOR TIGHTENING BOLT – ASSEMBLY
Cat. No.
No. Description
1730, 2340, 2540 3545, 3850, 3870
1 Bushing LOK240-0003 LOK387-0003
2 Door tightening bolt assembly LOK240-0036 LOK387-0007
3 Locking screw housing LOK240-0005 LOK387-0006
4 Locking base LOK240-0012 LOK387-0012
5 Locking housing axis LOK240-0014 LOK387-0014
6 Door locking device pin LOK240-0019 LOK387-0016
7 Bakelite handle HAN071-0003 HAN071-0006
8 Closing bridge “c” clip NUT193-0339 NUT193-0300
9 Cotter pin LOK692-0039 LOK692-0039
10 Okolon disc LOK240-0017 LOK387-0017
Bushing (1) + Locking screw housing (3) +
Closing bridge “c” clip (8)
LOK240-0002 LOK387-0002
Door tightening bolt – assembly LOK240-0001 LOK387-0030
Page 55
Page 53 of 63 Pages
12. LIST OF ACCESSORIES
Cat. No.
Description
1730 2340 2540 3545 3850 3870
Handle, Tray, TTA
1730, 2340, 2540
CMT240-0001 CMT240-0001 CMT240-0001 — — —
Pouch Rack
— ACS215-0008 ACS215-0008 — — ACS215-0010
Big
TRY314-0001 TRY385-0003 TRY387-0001
Tray
Small
TRY173-0001 TRY240-0001 TRY240-0001
TRY314-0002 TRY385-0004 TRY387-0003
Holder, Tray
TRH173-0002 TRH234-0001 TRH254-0001 TRH314-0000 TRH385-0001 TRH387-0002
Holder, Tray, Wire
— TRH234-0008 TRH254-0009 — — —
Silicon drain tube
GAS084-0007 GAS084-0007 GAS084-0007 GAS084-0007 GAS084-0007 GAS084-0007
Cleaning Powder,
Chamber Brite, 1 Box
CLE096-0026 CLE096-0026 CLE096-0026 CLE096-0026 CLE096-0026 CLE096-0026
Page 56
Page 54 of 63 Pages
13. LIST OF SPARE PARTS
Cat. No.
Description
1730 2340 2540 3545 3850 3870
Thermostat, Cut-Off,
TY95-H, Campini
THE005-0014 THE005-0014 THE005-0014 THE005-0014 THE005-0014 THE005-0014
Thermostat, Safety, 180C,
TY95/AC, Campini
THE005-0003 THE005-0003 THE005-0003 THE005-0003 THE005-0003 THE005-0003
Heating Element, 120V
HEA009-0001 HEA009-0002 HEA009-0003 HEA009-0014 — —
w. groove
HEA009-0016
Heating
Element,
230V
w/o
groove
HEA009-0004 HEA009-0005 HEA009-0006
HEA009-0015
HEA009-0007 HEA009-0008
Circuit Breaker, 1PH,
10A, Carlingswitch
ELE035-0069 ELE035-0069 ELE035-0069 ELE035-0069 — —
Circuit Breaker, Rail,
1PH,
15A, Carlingswitch
ELE035-0021 ELE035-0021 ELE035-0021 ELE035-0021 ELE035-0021 ELE035-0021
Timer, Mechanical,
0-60 min, Faucigny
ELE033-0001 ELE033-0001 ELE033-0001 ELE033-0001 ELE033-0001 ELE033-0001
Switch, Rocker, 16A
ELE035-0012 ELE035-0012 ELE035-0012 ELE035-0012 ELE035-0012 ELE035-0012
Microswitch, E1300M, 15A,
125/250VAC, 3/4HP,
Cheery
ELE036-0001 ELE036-0001 ELE036-0001 ELE036-0001 ELE036-0001 ELE036-0001
Microswitch, E11-00-H,
Cheery
ELE036-0002 ELE036-0002 ELE036-0002 ELE036-0002 ELE036-0002 ELE036-0002
Lamp, Orange, 110V,
8mm
ELE038-0003 ELE038-0003 ELE038-0003 ELE038-0003 ELE038-0003 ELE038-0003
Lamp, Orange, 230V,
8mm
ELE038-0006 ELE038-0006 ELE038-0006 ELE038-0006 ELE038-0006 ELE038-0006
Lamp, Green, 110V,
8mm
ELE038-0002 ELE038-0002 ELE038-0002 ELE038-0002 ELE038-0002 ELE038-0002
Lamp, Green, 230V,
8mm
ELE038-0005 ELE038-0005 ELE038-0005 ELE038-0005 ELE038-0005 ELE038-0005
Gauge, Pressure, Steam,
0-60 psi, Red Pointer
— GAU029-0005 GAU029-0005 GAU029-0005 GAU029-0005 GAU029-0005
Gauge, Pressure, Steam,
0-60 psi, 1.5"
GAU029-0008 — — — — —
Handle, Door, Bakelite
for TTA (522)
HAN071-0003 HAN071-0003 HAN071-0003 HAN071-0006 HAN071-0006 HAN071-0006
Knob, Timer
HAN071-0011 HAN071-0011 HAN071-0011 HAN071-0011 HAN071-0011 HAN071-0011
Knob, Pressure switch
(B10)
HAN071-0012 HAN071-0012 HAN071-0012 HAN071-0012 HAN071-0012 HAN071-0012
Cover, Door
POL065-0001 POL065-0002 POL065-0002 COV314-0001 POL065-0003 POL065-0003
Dipstick, Reservoir,
Water, Superp.
POL067-0005 POL067-0005 POL067-0005 POL067-0005 POL067-0005 POL067-0005
Cover, Reservoir,
Water, Superp.
POL067-0004 POL067-0004 POL067-0004 POL067-0004 POL067-0004 POL067-0004
Bellows, Door Lock
GAS080-0020 GAS080-0020 GAS080-0020 GAS080-0020 GAS080-0020 GAS080-0020
Gasket, Door
GAS080-0021 GAS080-0002 GAS080-0003 GAS080-0029 GAS080-0004 GAS080-0004
Page 57
Page 55 of 63 Pages
Cat. No.
Description
1730 2340 2540 3545 3850 3870
Disc, Silicone, Door
Bellows
GAS080-0006 GAS080-0006 GAS080-0006 GAS080-0006 GAS080-0006 GAS080-0006
Gasket, Silicone, Water
Reservoir
GAS080-0007 GAS080-0007 GAS080-0007 GAS080-0007 GAS080-0007 GAS080-0007
Cable, Plug+Socket 110V
15A, USA
WIR040-0004 WIR040-0004 WIR040-0004 WIR040-0004 WIR040-0004 WIR040-0004
Cable, Plug+Socket
220V 15A, USA
WIR040-0005 WIR040-0005 WIR040-0005 WIR040-0005 WIR040-0005 WIR040-0005
Multi-purpose valve assy.
complete with harness
CMT173-0006CMT240-0028CMT240-0028CMT314-0006 CMT385-0005 CMT387-0027
Multi-purpose valve with
M.Sw.
CMT173-0026CMT240-0046CMT240-0046CMT240-0046 CMT240-0046 CMT240-0046
Valve, Multipurpose,
Assembly+Base
CMT173-0027CMT240-0016CMT240-0016CMT240-0016 CMT240-0016 CMT240-0016
Valve, Multi-Purpose
VLV170-0067 VLV170-0065 VLV170-0065 VLV170-0065 VLV170-0065 VLV170-0065
Harness, Electrical,
Valve, Multipurpose
ELC173-0002 ELE032-0001 ELE032-0001 ELC314-0005 ELC385-0006 ELC387-0015
Valve, Safety, Steam
1/4"-40 psi (ASME)
SVL029-0004 SVL029-0004 SVL029-0004 SVL029-0004 SVL029-0004 SVL029-0004
Air Jet, M/E, Black
CMT100-0006CMT100-0006CMT100-0006CMT100-0006 CMT100-0006 CMT100-0006
Socket for electric cord,
15A
WIR040-0016 WIR040-0016 WIR040-0016 — — —
Socket for electric cord,
10A
WIR040-0003 WIR040-0003 WIR040-0003 — — —
Tightening bolt
½ UNC x 70
BOL194-0121 BOL194-0121 BOL194-0121 — — —
Tightening bolt
½ UNC x 90
BOL194-0122 BOL194-0122 BOL194-0122 — — —
Tightening bolt
½ UNC x 115
— — — BOL194-0123 BOL194-0123 BOL194-0123
Tightening bolt
½ UNC x 155
— — — BOL194-0124 BOL194-0124 BOL194-0124
Leg, Front, TTA
HE070-0012
HE070-0012
HE070-0012 — — —
Leg, Front, Long, TTA
— — —
HE070-0013
HE070-0013
HE070-0013
Leg, Rubber, Plug Type,
25x1/4
HE070-0016
HE070-0016
HE070-0016
HE070-0016
HE070-0016
HE070-001
6
Reservoir, Water,
Assembly
CMT173-0025CMT240-0025 CMT240-0025CMT240-0025 CMT387-0024 CMT387-0024
Cover, Outer
COV173-0002 COV240-0002 COV240-0002 COV314-0002 COV385-0002 COV387-0002
Rear cover
RCV173-0002 RCV240-0002 RCV240-0002 RCV314-0001 RCV387-0005 RCV387-0005
Autoclave vessel
ASM173-0001 ASM234-0001 ASM254-0001 CHM314-0000ASM385-0001 ASM387-0001
Door Assembly
DOR173-0001 DOR234-1000 DOR254-0000 — — DOR387-0001
Cooling coil
SRV000-0251 SRV000-0251 SRV000-0251 SRV000-0251 SRV000-0242 SRV000-0242
Brass bolt 1/8 x 60
BOL190-0020 BOL190-0020 BOL190-0020 BOL190-0020 BOL190-0020 BOL190-0020
Page 58
Page 56 of 63 Pages
Cat. No.
Description
1730 2340 2540 3545 3850 3870
SST bolt M4 x 12
BOL191-0140 BOL191-0140 BOL191-0140 BOL191-0140 BOL191-0140 BOL191-0140
SST bolt 4M x 8
BOL191-0158 BOL191-0158 BOL191-0158 BOL191-0158 BOL191-0158 BOL191-0158
Bushing for selector
valve
CMT240-0019CMT240-0019 CMT240-0019CMT240-0019 CMT240-0019 CMT240-0019
Microswitch D48X
ELE036-0012 ELE036-0012 ELE036-0012 ELE036-0012 ELE036-0012 ELE036-0012
Male connector 1/4 x 1/4
FIT100-0308 FIT100-0308 FIT100-0308 FIT100-0308 FIT100-0308 FIT100-0308
Male elbow 5/16 x 1/4
FIT100-0309 FIT100-0309 FIT100-0309 FIT100-0309 FIT100-0309 FIT100-0309
Brass nut 1/8
NUT192-0206 NUT192-0206 NUT192-0206 NUT192-0206 NUT192-0206 NUT192-0206
Star disk 1/8
NUT193-0290 NUT193-0290 NUT193-0290 NUT193-0290 NUT193-0290 NUT193-0290
Nut 3/8”
CMT240-0020CMT240-0020 CMT240-0020CMT240-0020 CMT240-0020 CMT240-0020
Screw 4M x 12
BOL191-0100 BOL191-0100 BOL191-0100 BOL191-0100 BOL191-0100 BOL191-0100
Below housing bolt
LOK240-0026 LOK240-0026 LOK240-0026 LOK240-0026 LOK240-0026 LOK240-0026
Safety membrane
housing
LOK240-0025 LOK240-0025 LOK240-0025 LOK240-0025 LOK240-0025 LOK240-0025
Membrane pin
L0K240-0023 L0K240-0023 L0K240-0023 L0K240-0023 L0K240-0023 L0K240-0023
Inner bushing for bellow
CMT067-0002CMT067-0002 CMT067-0002CMT067-0002 CMT067-0002 CMT067-0002
Metal sheet nut
4.8 x 1.25
NUT192-0230 NUT192-0230 NUT192-0230 NUT192-0230 NUT192-0230 NUT192-0230
Metal sheet nut
4.8 x 2-5
— NUT192-0236 NUT192-0236 NUT192-0236 NUT192-0236 NUT192-0236
Metal sheet screw
12 x 4.8
BOL194-0340 BOL194-0340 BOL194-0340 — — —
Metal sheet screw
10 x 3/4
— — — BOL194-0341 BOL194-0341 BOL194-0341
Switch, Pressure, B10,
Robert Show
THE005-0002 THE005-0002 THE005-0002 THE005-0002 THE005-0002 THE005-0002
Page 59
Page 57 of 63 Pages
14. CONVERSION TABLE
ºF ºC
PSI BAR
212 100 0 0
234 112 7.4 0.5
250 121 18.0 1.2
262 128 22.2 1.5
273 134 29.6 2.0
282 139 37.0 2.5
291 144 44.4 3.0
Page 60
Page 58 of 63 Pages
DRAWING OF ELECTRICAL SYSTEM OF TABLE AUTOCLAVE MODEL 1730M
Page 61
Page 59 of 63 Pages
DRAWING OF ELECTRICAL SYSTEM OF TABLE AUTOCLAVE MODELS 2340/2540 M
Page 62
Page 60 of 63 Pages
DRAWING OF ELECTRIC SYSTEM OF TABLE AUTOCLAVE MODEL 3545 M
Page 63
Page 61 of 63 Pages
DRAWING OF ELECTRIC SYSTEM OF TABLE AUTOCLAVE MODEL 3850 M
Page 64
Page 62 of 63 Pages
DRAWING OF ELECTRICAL SYSTEM OF TABLE AUTOCLAVE MODEL 3870 M
Page 65
Page 63 of 63 Pages
PIPING DIAGRAM TABLE TOP AUTOCLAVE
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