Page 1
OPERATION
&
MAINTENANCE
MANUAL
Electronic Tabletop Autoclaves
Models 1730, 2340, 2540, 3140, 3850, 3870
E, EK, EA & EKA
Page 2
Page 3
1
TABLE OF CONT E N T S
PARAGRAPH PAGE NO.
1.
GENERAL..............................................................................................................
4
1.1 Incoming Inspection .................................................................................. 4
1.2 Warranty..................................................................................................... 4
1.3 Warranty Statement.................................................................................... 4
2 TECHNICAL DATA.............................................................................................. 6
2.1 Introduction................................................................................................ 6
2.2 Standby Heating Mode............................................................................... 6
2.3 Environmental Emission Information...................................................... 6
2.4 Operating Conditions................................................................................. 7
2.5 Utilities........................................................................................................ 7
2.6 Construction ............................................................................................... 7
2.7 Symbol Description .................................................................................... 7
2.8 Electrical Data............................................................................................ 8
2.9 Specifications.............................................................................................. 9
2.10 Technical Specifications .......................................................................... 10
2.11 Directives and Standards.......................................................................... 11
2.12 Water Quality............................................................................................ 12
3 KEYBOARD (Keys and Display)......................................................................... 15
3.1 Indicator Light Description ..................................................................... 17
3.2 Description and Functions of the Control Panel Keyboard................... 18
3.3 Description of the Display Panel ............................................................. 20
3.4 Description of Displayed Messages and Safety Measures...................... 20
4 STERILIZATION PROGRAMS......................................................................... 23
4.1 PROGRAM 1. Unwrapped Instruments.................................................. 23
4.2 PROGRAM 2. Wrapped Instruments and Porous Loads....................... 24
4.3 PROGRAM 3. Glassware......................................................................... 25
4.4 PROGRAM 4. Accessory (Dry Only)...................................................... 25
5 PRINTER (Optional)........................................................................................... 26
5.1 Printer Operation ..................................................................................... 26
5.2 Printer Handling ...................................................................................... 28
6 INSTALLATION INSTRUCTIONS................................................................... 29
6.1 Electrical................................................................................................... 29
6.2 Automatic Water Filling .......................................................................... 31
6.3 Lifting and Carrying ................................................................................ 32
6.4 Loading and Unloading the Device......................................................... 33
6.5 Filling the Water Reservoir...................................................................... 33
7 PREPARATION BEFORE STERILIZATION.................................................. 34
8 OPERATING INSTRUCTIONS......................................................................... 37
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2
TABLE OF CONT E N T S ( C o n t i n u e d )
PARAGRAPH PAGE NO.
9 MAINTENANCE INSTRUCTIONS................................................................... 40
9.1 Preventive and Scheduled Maintenance ................................................. 40
9.2 Replacing the Air Filter (Models EA, EKA) ........................................... 41
9.3 Draining the Reservoir............................................................................. 42
9.4 Cleaning the Air Jet ................................................................................. 43
9.5 Replacing the Door Gasket ...................................................................... 44
9.6 Checking the Safety Valve........................................................................ 45
9.7 Replacing the Fuse................................................................................... 46
9.8 Cleaning Water Outlet Strainer............................................................... 47
9.9 Cleaning Tabletop Autoclaves with Chamber Brite ™ .......................... 48
9.10 Water Sensor Cleaning ............................................................................ 50
10 TROUBLESHOOTING FOR THE OPERATOR .............................................. 51
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3
TABLE OF CONT E N T S ( C o n t i n u e d )
DRAWINGS PAGE NO.
Front View.................................................................................................................................. 13
Rear View....................................................................................................................................14
Front Panel Keyboard – Old Type (Gray)................................................................................. 15
Front Panel Keyboard – New Type (Blue)................................................................................ 16
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4
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
theycanfileaclaimwith 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
We certify that this instrument is guaranteed to be free from defects in
material and workmanship
for two years against faulty components and
assembly.
This warranty does not include routine cleaning and preventive
maintenance to be performed according to instructions in
section 9.1 (Preventive and Scheduled Maintenance).
Tuttnauer warrantees all new autoclaves for a period of two full years,
covering both parts and labor. This two year warranty covers defects in
materials and workmanship on every part in the autoclave except door
gaskets and HEPA filters (they are wear items).
Tuttnauer warrantees all chambers for a period of ten (10) years against
defects in materials and workmanship. This chamber warranty went into
effect January 1997.
This warranty does not apply to any instrument that has been subjected to
misuse, neglect, accident or improper installation or application, nor shall
it extend to autoclaves that have been repaired or altered outside the
factory without prior authorization from Tuttnauer.
Tuttnauer’s obligation is limited to the repair or replacement of parts for
the autoclave. This warranty will be void if the unit is not purchased from
an authorized Tuttnauer dealer. No other warranties or obligations are
expressed or implied.
The Autoclave should only be used in a manner described in this
manual!
1.3 Warranty Statement
To activate the warranty, the registration card must be completed and
returned to Tuttnauer within fourteen (14) days of purchase or you may call
our customer service department at the number listed below.
No product will be received or accepted for repair without prior return
authorization from Tuttnauer. All transportation charges to and from
Tuttnauer must be paid by the owner of the autoclave. During the first 90
days after purchase of an autoclave, Tuttnauer will pay shipping costs on
an individually evaluated basis and ONLY with pre-approval.
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5
Note:
If y
ou have any questions or there are any difficulties with this instrument
and the solution is not covered in this manual, please contact your dealer or
Tuttnauer USA Co. Do not attempt to service this instrument yourself.
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6
2 TECHNICAL DATA
2.1 Introduction
This tabletop 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). It pushes that air through the heated
chamber to remove moisture and facilitate the dry
ing 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 shutdown 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 Standby Heating Mode
The autoclave provides an option of heating the chamber in standby
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 Environmental 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.
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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 41ºF to 104ºF (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.
Main supply voltagefluctuations up to +/-5% 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).
Standby
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8
2.8 Electrical Data
1730 2340 2540 3140 3850 3870
E EK
E,
EA
EK,
EKAE,EA
EK,
EKAE, EAE, EAE, EA
Ampere (A)
at 230/240V
4.6 5.9 6 9.6 6 9.6 10.4 10.4 13
Ampere (A)
at 120V
8.8 11.2 11.7
11.7
20.0
Watts (W) 1050 1350 1400 2200 1400 2200 2400 2400 3000
Frequency 50 / 60 Hz
Degree of protection by enclosure IP31
AUTOCLAVE TYPE
E EA EK EKA
DESCRIPTION
120V 230V 120V 230V 120V 230V 120V 230V
1730
Circuit breaker (A) 15 10
15 10
Air pump fuse (A)
Water pump fuse (A)
2340 / 2540
Circuit breaker (A) 15 10 15 10
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
3140 / 3850 / 3870
Circuit breaker (A)
15
15
Air pump fuse (A)
1.25
Water pump fuse (A)
1.25
1.25
For autoclaves
Models EA, EKA
(with an air pump)
For autoclaves
Models E, EK
(without an air pump)
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2.9 Specifications
Overall Dimensions
1730 2340 2540 3140 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 234 9.2 299 11.8 299 11.8 371 14.6 451 17.8 451 17.8
F1 339 13.4 422 16.6 422 16.6 488 19.2 562 22.1 562 22.1
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.
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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
25 kgs.
(55 lbs.)
36 kgs.
(79 lbs.)
48 kgs.
(106 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
Printer
(Optional)
No
Yes
Yes
Yes
Yes
Yes
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 2.2 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
Mineral Free
Water
Reservoir
3.0 liters.
(0.66 US gal.)
3.0 liters.
(0.66 US gal.)
3.0 liters.
(0.66 US gal.)
3.0 liters.
(0.66 US gal.)
7.5 liters.
(2.0 US gal.)
7.5 liters.
(2.0 US gal.)
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.
(17 US gal)
84 liters.
(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 x 39.1
(12” x 15”)
38 × 58 cm.
(15" × 23" )
38x76 cm
(15" x 30")
2.10 Technical Specifications
Model
1730
2340
2540
3140
3850
3870
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2.11 Directives and Standards
The autoclaves are FDA cleared and comply with the following
Standards:
2.11.1 Technical Standards
1. A.S.M.E. Code, Section VIII div.1 for unfired pressure vessels.
2. AAMI/ANSI ST-55:2001 Tabletop 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.
2.11.2 Quality Standards
The manufacturing plant meets the following quality standards:
1. EN ISO 9001:2000:2008– Quality System.
2. ISO 13485:2003 – Quality systems – Medical devices –
Particular requirements for the application of ISO 9001.
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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
Element Condensate – allowable content
Silicium oxide. SiO
2
≤0.1 mg/kg
Iron ≤0.1 mg/kg
Cadmium ≤0.005 mg/kg
Lead ≤ 0.05 mg/kg
Rest of metals except iron,
cadmium, lead
≤0.1 mg/kg
Chloride (Cl) ≤0.1 mg/kg
Phosphate (P2O5) ≤0.1 mg/kg
Conductivity (at 20°C) ≤3 μs/cm
pH value (degree of acidity) 5 to 7
Appearance Colourless clean without sediment
Hardness (Σ Ions of alkaline
earth)
≤0.02 mmol/l
Compliance with the above data should be tested in accordance with
acknowledged analytical methods, by an authorized laboratory.
Attention:
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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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 3140/3850/3870
Old (gray) control panel
New (blue) control panel
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REAR VIEW
EA,EKA
only
Cut-Out Thermostat
Reset button
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3 KEYBOARD (Keys and Display)
FRONT PANEL KEYBOARD – OLD TYPE (GRAY)
Note: See section 3.2 for a description of the Keyboard buttons
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FRONT PANEL KEYBOARD – NEW TYPE (BLUE)
Note: See section 3.2 for a description of the Keyboard buttons
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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.
L:\WORD-PLT\man36b.doc
NEW TYPE (BLUE)
OLD TYPE (GRAY)
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3.2 Description and Functions of the Control Panel Keyboard
3.2.1 Program keys
(1) Unwrapped Instruments
(2) Wrapped Instruments
(3) Glassware (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 250ºF274ºF (121ºC-134ºC).
Note:
In no case should the temperature be set higher than 274ºF
(134ºC)
(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 glassware 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.
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(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 according 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 a complete 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 overtighten the bolt as this may result
in damage to the gasket. Should the autoclave fail
to reach sterilizing temperature/pressure, always
check first if 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).
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(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(80 minutes in the Glasswareprogram).
Possible causes:
A clogged Air Jet (see cleaning the Air Jet sec 9.4).
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.
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Low Temp. Message is displayed, fail indicator lights and cycle is
aborted, if the temperature drops 2.5C (4.5F) below the
required sterilization temperature.
Possible causes:
Insufficient water in the chamber (see Low water message).
Sterilization time has been set for too long a period.
A bad temperature sensor.
High Temp. Message is displayed, fail indicator lights and program is
aborted if one of the following occurs:
The temperature rises to 3C (5F) above the required
sterilization temperature during the sterilization stage.
This message appears during the HEAT stage, if the
temperature sensor is damaged.
Possible causes:
A damage
d solid state relay.
A damaged heating element.
A damaged temperature sensor.
Low Water Message is displayed; if during the Water Inlet stage,
insufficient water
enters the chamber. In units with water
pumps, the pump will try three times to fill the chamber with
water, if unsuccessful the cycle is aborted and the message
LOW WATER is displayed.
Message is displayed, if during a normal heat up stage the
system determines that there is insufficient water in the
chamber to complete the cycle. This determination is made by
the combined input of two sensors, the Water Electrode and
the Safety Thermostat. Also, if a power failure occurs during
the heat or sterilization stage after the power returns, the
system will check the Water Electrode to see if there is
sufficient water in the chamber in order to resume the cycle. If
not, the cycle will be aborted, the message LOW WATER
will be displayed, and the Cycle Fail indicator will light.
Possible causes:
A dirty or shorted Water Electrode.
A clogged water pump or water pump filter.
A clogged water line.
Unit is improperly leveled.
The Air Outlet Valve is stuck closed.
A leaky door gasket, door bellows, solenoid valve, safety
valve, or the air jet is allowing steam to escape at a higher
than normal rate.
A power down has occurred and on power up the water
electrode tip is dry.
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Door Unlock Message is displayed and the DOOR CLOSED LED indicator
remains unlit, if the door is improperly closed when the
START button is pressed. If the door accidentally opens
during any stage of the cycle, the same message appears, the
DOOR CLOSED LED indicator will turn off, and the system
reacts as if the STOP key was pressed.
High Pres. Message is displayed, fail indicator lights up, and the program
is aborted if the pressure rises 10 PSI (0.6Bar) above the
required sterilization pressure.
Possible causes:
A damaged solid state relay.
A damaged heating element.
Man. Stop Message will be displayed and the FAIL indicator will
light after the STOP key is pressed for longer than 1 second.
Add Water Message is displayed and the respective red LED indicates
insufficient water in the water RESERVOIR. After water is
added to the reservoir, the START button must be pressed
again in order to start the required sterilization cycle.
Water Inlet During the automatic water fill, the message WATER INLET
is displayed as information to the operator.
Power Dn. If a power failure occurred during the running of a cycle, when
power resumes, a POWER DN message is displayed for
several seconds; if a printer is installed it will print POWER
DN. In addition, the system automatically attempts to
complete the STERILIZATION stage if the following
parameters are met:
a. If the temperature drop is less than 4.5F (2.5C),
sterilization resumes automatically.
b. If the temperature drop is more than 4.5F (2.5C), the
cycle fails, POWER DN message is displayed and printed
and LOW TEMP message is displayed.
c. If the pressure drop is more than 4 psi (0.27 Bar), the
cycle fails, POWER DN message is displayed and printed
and LOW PRES message is displayed.
If a power failure occurred during the HEAT stage, heating
resumes, provided enough water remains in the chamber. If
not, the cycle is aborted, the message “LOW WATER” is
displayed. If a power failure occurs during the dry and exhaust
stages, the unit will automatically resume operation once the
power is back on.
If a power failure occurs during the GLASSWARE
PROGRAM, the system does not allow fast exhaust (as the
exhaust valve is normally closed) during a power failure or
when power resumes.
CYC Finish When the cycle has been completed successfully the
message CYC FINISH is displayed.
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4 STERILIZATION PROGRAMS
The autoclave offers 3 sterilization programs, at temperatures of up to 274F
(134C), with or without a drying stage and 1 accessory (dry only) program.
A. Three sterilization programs:
1. Unwrapped instruments.
2. Wrapped instruments and porous loads.
3. Glassware.
B. Accessory program:
1. Dry only.
Note: The nominal data of
the program (default settings) can be changed to fit the needs of
a particular office. This is done by means of the TEMP, STE.TIME, DRY TIME,
keys in combination with the UP or DN keys, as described in sec 3.2.2.
4.1 PROGRAM 1. Unwrapped Instruments
For unwrapped instruments and materials, when the manufacturer
recommends autoclaving
at temperatures between 250F and 274F
(121C and 134C) no preset drying stage required.
Nominal parameters default settings
Sterilization temperature: 273F (134C).
Sterilization time: 3 minutes.
Dry time: none.
Operations Sequence
Heating by actuation of electrical heaters until the sterilization
temperature is reached.
Sterilization
temperature is maintained constant for the preset
sterilization time.
Fast exhaust, steam is exhausted out of the chamber at a fast rate until
pressure drops to zero.
Note:
The sterility
of instruments processed in unwrapped cycles cannot be
maintained if exposed to a non-sterile environment.
TIME
PRESSURE (kpa)
TEMPERATURE
Ambient Pressure
t1 t2
t3
t1 = Steam generation stage
t2 = Sterilization stage
t3 = Fast exhaust stage
= Pressure
= Temperature
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4.2 PROGRAM 2. Wrapped Instruments and Porous Loads
For wrapped instruments and materials, when the manufacturer
recommends autoclaving at temperatures between 250F and 274F
(121C and 134C) with a drying stage.
Nominal parameters default settings
Sterilization temperature: 273F (134C).
Sterilization time: 7 minutes.
Dry time: Models EA/EKA 30 minutes.
Models E/EK 60 minutes.
Operations sequence:
Heating by actuation of electrical heaters until the sterilization
temperature is reached.
Sterilization temperature is maintained constant for the preset
sterilization time.
Fast exhaust, steam is exhausted out of the chamber at a fast rate until
pressure drops to 4 psi abs. (124 kpa abs.).
Dry heating of chamber to remove leftover moisture from the
instruments and wraps, 30 minutes for models EA/EKA and 60 minutes
for models E/EK.
PRESSURE (kpa)
TEMPERATURE
Ambient Pressure
and Temperature
t1 t2
t3
t1 = Steam generation stage
t2 = Sterilization stage
t3 = Fast exhaust stage
= Pressure
=
Temperature
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4.3 PROGRAM 3. Glassware
For all glassware intended for sterilization.
Nominal parameters default settings
Sterilization temperature: 250F (121C).
Sterilization time: 30 minutes.
Slow exhaust: 15 to 20 minutes.
Drying time: drying is not allowed.
Operations sequence:
Heating by actuation of electrical heaters until the sterilization
temperature is reached.
Sterilization temperature is maintained constant for the preset
sterilization time.
Slow exhaust, heating is stopped and steam is let out of the chamber at a
slow rate until the temperature decreases to 185°F
(85°C).
No drying is allowed.
4.4 PROGRAM 4. Accessory (Dry Only)
The
purpose of the accessory drying program is to offer an alternative in
situations where the dry time in the wrapped or unwrapped cycle is
insufficient. Rather then wait for the items to air dry or run another
complete cycle with a longer dry time, just select the accessory drying
program to continue the heat assisted drying process.
TIME
PRESSURE (kpa)
TEMPERATURE
Ambient Pressure
and Temperature
t1 t2
t3
t1 = Steam generation stage
t2 = Sterilization stage
t3 = Slow exhaust stage
= Pressure
= Temperature
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5 PRINTER (Optional)
The printer is an optional device. If the autoclave is not equipped with a printer,
paragraph 5 is not applicable.
5.1 Printer Operation
The
autoclave is equipped with a character printer that prints a detailed
history of each cycle performed by the instrument (for the record or for
subsequent consideration).
The printing is made on thermal paper with 24 characters per line and
contains the following information:
Software version.
Date and time of cycle start.
Selected program and parameters.
Sterilization pressure.
Sterilization temperature.
Sterilization time.
Cycle identification.
When the
sterilization cycle begins, the printer starts printing the above
data.
After the preliminary printing, the autoclave starts performing the
sequence of operations of the cycle. The measured values of temperature
and pressure are printed at fixed time intervals, according to the phase of
the process, as shown in the table below.
The data is printed from the bottom up, beginning with the program name
and ending with “O.K.” for a complete cycle, or “FAIL” for an aborted
cycle.
For an example of a typical printout, see next page.
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PRINTER OUTPUT DESCRIPTION
Autoclave No: 01 Number of the autoclave with respect to other units in the
same location.
Load number: 0005 Load number. Useful to determine when to clean the
chamber, (upon reaching 255, this number is reset to 0).
Operator: ___________ To be filled in manually by operator.
O.K. Cycle completed successfully.
D20 220°F 00P The time, temperature and pressure during
drying.
----------------------E20 251°F 02P The time, temperature and pressure during exhaust.
----------------------S20 273°F 31P The time, temperature and pressure during sterilization.
*
* Prints sterilization data every 1 minute.
*
S13 273°F 31P The time, temperature and pressure during sterilization.
S12 273°F 31P The time, temperature and pressure during sterilization.
---------------------H08 231°F 10P The time, temperature and pressure during heating.
H04 137°F 00P The time, temperature and pressure during heating.
*
* Prints heat up data every 4 minute.
*
H00 72°F 00P The time, temperature and pressure during heating.
---------------------MN TEMP PRES
DRY: 30min Drying time for selected program.
TIME: 08min Sterilization time for selected program.
TEMP: 273°F Sterilization temperature for selected program.
PROG: PKG Selected program: Unwrapped instruments
TIME: 15:12:06 Time sterilization cycle begun.
DATE: 07:31:00 Date sterilization cycle begun.
Version: T01EAWP Number and version of the program
Legend
MN Time elapsed in minutes
H Heating stage
S Sterilization stage
E Exhaust stage
D Drying stage
P psi
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5.2 Printer Handling
The printer is driven and controlled automatically by the control unit,
while the autoclave performs a sterilization program.
Figure 1 Figure 2
To set the paper roll in the printer, perform the following steps:
5.2.1 Gently push the clips for removing the front panel, remove the panel
and pull out the printer gently.
5.2.2 Set the paper roll on the shaft (See Figure 1). Since the outer and
inner surfaces of the paper are different, set the roll so that the
printing surface is the outer.
5.2.3 Gently push the paper face down into insertion opening (A) in Figure
2. Keep pressing the feed switch (B) until the paper comes out from
the print head (C).
5.2.4 When the paper emerges from the print head, insert it in the paper
cutter (the slot in the front panel) and reassemble the front panel on
the unit.
The paper roll is set inside the unit and the printer is ready for use.
NOTE: If the paper is not pulled in by the rollers, even when you press the
feed switch (B), push the paper in.
5.2.5 To ensure a reliable operation of the printer, perform the following:
5.2.5.1 Turn the main switch to the OFF position.
5.2.5.2 Press the feed switch and at the same time turn the main
switch to the ON position. Verify that the printer
performs an operation test by printing all the built-in
characters.
The following precautions have to be taken to ensure the proper operation
of the printer:
Avoid contact between the paper and the hot parts of the autoclave,
as the paper will be blackened.
Do not pull out the paper roll from the paper insertion opening.
Use only the 58mm. wide thermal paper rolls, supplied by your
dealer. Larger rolls will not fit inside the printer.
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6 INSTALLATION INSTRUCTIONS
Caution:
The sterilizer must be placed on a rigid and leveled surface. The counter must
be able to hold the load of the device and loaded material as follows:
Model
1730 2340 2540 3140 3850 3870
lb
75 106 117 172 245 278
load on
Counter
kg
34 48 53 78 111 126
Note:
Make sure while placing the autoclave, to leave space around the machine, to
give the technician access to service the machine.
6.1 Electrical
The electrical connection should comply with the device's power
requirement. I
t must also comply with local installation and safety rules
and regulations. The voltage supplied to the device must comply with the
label 5%.
In
order to avoid any injury by electrical hazard, it is mandatory for the
customer to have installed an earth leakage relay (GFI outlet or circuit
breaker) in the electrical circuit to which the autoclave is connected. This
relay disconnects all the poles of the electrical power line in case of
accidental contact with the autoclave’s 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 outlet. The autoclave must be connected to a
properly grounded outlet.
6.1.1 Setup for new units 2340, 2540, 3140, 3850 & 3870
Your new Tuttnauer Autoclave was set at the factory and requires a
minimal of setup.
Make sure the counter is level and sturdy.
Make sure all the feet are on the autoclave and none have been
lost.
Position the autoclave on the counter.
Fill the reservoir with distilled water (see sec 6.5).
The unit is ready to operate.
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6.1.2 Setup for units 1730 and any unit with serial number prior to
2003000
Proper adjustment of the chamber pitch is one of the most important
things y
ou can do for the sterilizer. Proper chamber pitch insures that
among other things the sterilizer will have the proper amount of water
in the chamber at the beginning of each cycle. Insufficient water in the
chamber at the beginning of the cycle will generate a LOW WATER
message at some point during the cycle when the water level becomes
too low. If, on the other hand, there is too much water in the chamber
this will extend the heating portion of the cycle. In cases where the
heating portion of the cycle is extended for more than 50 minutes (80
minutes for a 3850/3870) the sterilizer will abort the cycle and
display a LOW HEAT message. Please follow these setup steps:
Make sure the counter is level and sturdy (3).
Make sure all the feet are on the autoclave and none have been
lost.
Make sure the feet are free to move in and out (2).
Position the autoclave on the counter.
Fill the reservoir with distilled water (see sec 6.5).
The chamber should be empty of any instruments, trays or
leftover water.
The autoclave should be turned off.
The chamber pitch now needs to be adjusted.
Measure to the proper amount of distilled water for the
appropriate model
unit as listed below (the tolerances on these
amounts are +2 oz. and –0 oz).
1730 2340/2540 3140 3850 3870
10 oz 300 ml 12 oz 350 ml 14 oz 400 ml 20 oz 600 ml 24 oz
750 ml.
Pour the proper amount of water into the chamber through the
front door of the unit (4).
This water should cover the bottom of the chamber to within +/-
½ inch of the groove in the front. (1).
If necessary, adjust the front leveling feet so that the water lays in
the chamber correctly. (2).
Once the chamber pitch adjustment is completed, empty the
water from the chamber and check if the automatic filling is set
correctly. See sec 6.2.3.
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6.2 Automatic Water Filling
6.2.1 For new units 2340, 2540, 3140, 3850 & 3870
The proper amount of water for automatic filling in your new
Tuttnauer autoclave has been preset at the factory. However, if in
routine operation there is inadequate water in the chamber, the
operator can adjust the level with the automatic built-in system by
doing the following:
1. Press STOP key repeatedly until the message “code xxx”
appears on the display.
2. Use the UP or DN arrow keys to change the code to 105, then
press the STOP key.
3. A message will be displayed saying “Water in = xx sec”.
4. Press UP or DN keys to increase or decrease water inlet time.
5. Press the STOP key to enter new water inlet time into memory.
6. If necessary, press the STOP key again to bring up the program
display.
Note:
DO NOT attempt to automatically fill the chamber with the
DOOR open. Water will overflow out of the chamber.
Warning:
If it becomes necessary to RESET the software program, it will be
essential to repeat all steps listed above. This will ensure that the
correct amount of water enters the chamber for operation.
6.2.2 For units 1730 & any unit with serial number prior to 2003000
If it becomes necessary to adjust the automatic fill, follow these
steps:
1. Make sure the power is off.
2. The door should be open and the chamber empty of any water.
3. Make sure the Water Electrode is clean (see sec 9.10).
4. Press and hold the Water Inlet key (this is the button on the
keypad with the two arrows).
5. Turn the power on. When the program display screen appears,
release the Water Inlet key – wait one second and press it in
again.
6. Water will begin flowing into the chamber.
7. Monitor the water flow.
8. Hold the Water Inlet key until the water reaches the groove at
the front of the chamber.
9. Release the button – wait ten seconds – the unit is now
reprogrammed.
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6.2.3 Checking the automatic fill
To check the automatic fill, follow these steps:
1. Remove any water that is in the chamber.
2. Make sure the unit is turned on.
3.
Place a collecting vessel under the autoclave's door.
4. With the door open, press and hold the door switch, then press
the START key.
5. When water starts flowing into the chamber, release the door
switch.
6. Water should come beyond the groove at the front of the
chamber, and a small amount will pour into the collecting
vessel.
7. After the automatic filling is completed, tilt the autoclave and
pour all the water in the chamber into the collecting vessel.
8. Measure and verify that the amount of water pumped into the
chamber is 500-600 ml.
9. If the water is not filling correctly, follow the adjustment
procedure above.
Warning:
If it becomes
necessary to RESET the software program, it
will be essential to repeat all steps listed above. This will
ensure that the correct amount of water enters the chamber
for operation.
VERY IMPORTANT – Due to the fact that the water lines
are empty when the unit is shipped, air may become trapped
in the lines. It is recommended that, for the first operation,
these steps are followed to make sure water is flowing freely.
Open the door, press the Water Inlet key. When water enters
the chamber, release the key and remove the water.
6.3 Lifting and Carrying
Caution:
Before moving the autoclave, make sure that the electric cord is
disconnected from the power and there is no pressure in the chamber.
1. Disconnect the power supply cord.
2. Drain the water from the reservoir and vessel.
To avoid injuries, lifting and carrying should be done by two people.
Do not drop this device!
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6.4 Loading and Unloading the Device
6.4.1 Safety
Protective equipment, clothes and other safety instructions should
be implemented
in accordance with local and national regulations
and/or rules!
For proper sterilization - Do not overload the chamber. Only
autoclavable products shall be used; please refer to the material or
instrument manufacturer's instructions for sterilization of unknown
materials or instruments.
6.4.2 Loading
Correct loading of the autoclave is essential to successful
sterilizing for
several reasons. Efficient air removal from the
chamber and the load will permit steam penetration and saturation,
and allow proper drainage of condensate. Additionally, correct
loading will reduce damage to packs and their contents and
maximize efficient use of the sterilizer.
For detailed loading instructions, see sec. 7 (Preparation before
sterilization).
6.4.3 Unloading
On completion of the cycle, the load shall be immediately
removed from the sterilizer and a visual inspection made to
ascertain that the load is dry, and that sterilizing indicators have
made the required color change.
6.5 Filling the Water Reservoir
Remove the water reservoir cover. Pour distilled water into the reservoir
through the opening on top of the autoclave until it reaches the base of the
safety valve holder, approximately 0.7 gallons (3 liters).
Use water-having characteristics as per table in sec 2.11.
Caution:
Under no circumstance should water be filled above the safety valve
holder.
USE DISTILLED WATER ONLY. The impurities in tap water will
create the need for more frequent cleaning and maintenance, in addition,
they will accumulate and block the hole of the Air Jet. This will prevent
the temperature in the chamber from rising properly. This will cause the
unit to abort its cycle, spore tests to fail and indicator strips not to
change color. It is essential from time to time during heating and
sterilization phases that a spray of steam should escape, from the Air Jet,
causing a hissing sound. If no escaping steam is evident or no hissing sound
heard, follow the instructions in sec 9.4 for cleaning the Air Jet.
SAFETY VALVE HOLDER
EXIT FOR STEAM SPRAY
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7 PREPARATION BEFORE STERILIZATION
The purpose of packaging and wrapping items for sterilization is to provide an
effective barrier against contamination during storage, once the items have been
sterilized.
Instruments to be sterilized must be free from all residual matter, such as blood
or organic tissue. Instruments must also be dry and free from mineral deposits.
Such substances may cause damage to the instruments themselves or the
Sterilizer.
1. Clean instruments immediately after use to remove any residue. It is
recommended that all instruments be ultrasonically cleaned using
Tuttnauer's CLEAN AND SIMPLE enzymatic cleaning tablets or other
suitable solution.
2. After cleaning, rinse
instruments under tap water for 30 seconds and pat or
air dry to remove residual minerals. If your tap water has a high mineral
content, rinse a second time in a bath of distilled water to remove minerals.
3. Launder textile wraps prior to reuse, but do not use bleach.
4. Follow the instrument manufacturer’s instructions on the use of products for
cleaning and lubricating instruments that have been ultrasonically cleaned.
5. Be sure that instruments of dissimilar metals (stainless steel, carbon steel,
etc.) are separated. Carbon steel instruments should be bagged or placed on
autoclavable towels and not directly on stainless steel trays (mixing will
result in the oxidation of these metals).
6. Do not place materials to be sterilized against the chamber’s wall. Place the
material only on the tray or rack.
7. When using a paper / plastic bag, the plastic side should always be down.
8. Check the instructions of the item manufacturer as to the proper procedure
for sterilizing each item.
9. Items must be sterilized in an open position. Surfaces that are hidden
because the item is in a closed position will not be exposed to the steam and
will not be sterilized.
10. Place a sterilization indicator in each tray or inside each wrapped pack.
11. At least once a week use a biological spore test (Bacillus
Stearothermophilus) in any load to insure proper sterilization. (Be aware,
testing standards may
vary). Always follow the spore test manufacturer’s
instructions.
12. Make sure that all instruments remain apart during the sterilization cycle.
Surfaces that are hidden because items are covering other items will not be
exposed to the steam and will not be sterilized.
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13. Verify that packaging methods are in accordance with the good practice
approach and the packaging materials used are in agreement with applicable
standards.
14. Empty canisters should be placed upsidedown in order to prevent the
accumulation of water.
15. Do not overload the Sterilizer trays. Overloading will cause inadequate
sterilization & drying.
16. Allow a distance of approximately 1" between trays to permit steam
circulation.
17. Wrapped instruments should be placed in material which will allow steam
penetration and promote drying, such as autoclave bag, autoclave paper, or
muslin towels.
18. Do not stack pouches. It is recommended that a pouch rack such as the
Tuttnauer POUCH RACK be used to insure proper steam penetration and
adequate drying. Surfaces that are hidden because the items are being
stacked will not be exposed to the steam and will not be sterilized.
19. Tubing should be rinsed after cleaning. When placed in the tray, make sure
that both ends of the tubing are open and there are no sharp bends or twists.
20. Packs should be placed upright on the tray. They should not be touching
each other or the Chamber walls. There should be about 1” between packs
for proper steam circulation.
For models 2340, 2540 For model 3870
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21. If spotting is detected on the instruments, the first step would be to use an
ordinary eraser to remove the spot. If there is no pitting under the spot then
the spot was only dirt. Dirt spots on an instrument may be an indication that
the autoclave needs to be cleaned or that the instruments were not
adequately cleaned or dried. If removal of the spot reveals pitting, the spot
was most likely rust. Rust spots on an instrument are not uncommon on
inexpensive instruments. It may also be an indication that the instruments
were rinsed in tap water with a high content of minerals. These minerals,
when exposed to high temperature and steam, will accelerate the oxidation
of the metal. One suggestion would be to final rinse the instruments in a
distilled water bath.
22. If the instruments exhibit a discoloration, this can be due to the mixing of
carbon steel and stainless steel. When these two metals come into contact
with each other an electrolysis occurs that breaks down the metal. The best
solution is to separately wrap the carbon steel to insulate it from other
instruments or the trays.
23. Items should not be allowed to touch the walls of the Chamber as the hot
metal can damage the item.
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8 OPERATING INSTRUCTIONS
It is important to clean the hole of the air jet, as described in sec. 9.3 before
starting operation of the autoclave for the first time.
1. Remove water reservoir cover. Pour distilled water into the reservoir,
through the opening on top of the autoclave, until it reaches the base of the
safety valve holder, approximately 0.7 gallons (3 liters).
2. Plug the power cord into the back of the autoclave and into the wall outlet.
3. Turn on the rocker switch mounted on the bottom of the front panel.
4. If a printer is installed, set the clock with the proper date and time.
5. Press the required key to select the required program. The light indicator of
the selected program is illuminated; indicating the program has been
selected. The preset data of the program, sterilization temperature, time and
dry time are displayed.
6. Load the material to be sterilized into the chamber according to instructions
in sec. 7 (Preparation Before Sterilization) and close the door making sure
the ‘Close Door’ indicator is illuminated.
NOTE:
Due to the inherent elasticity of the door gasket, the CLOSE DOOR
indicator light may be illuminated green before a complete seal is made
between the door and the chamber.
Therefore, in order to ensure that the door is fully sealed, when the
green light has been illuminated continue to tighten the door bolt until
“hand tight”. Do not overtighten the bolt as this may result in damage
to the gasket.
Should the autoclave fail to reach the sterilizing temperature/pressure,
always check first that the door is fully sealed. If not, tighten the door
bolt further, as described above, until completely sealed.
7. Press the START key to put the autoclave in operation.
WATER INLET is displayed until the correct volume of water is
automatically introduced.
The autoclave starts performing the sequence of operations. The actual
measured values of pressure and temperature are displayed continuously
(and printed with optional printer).
The indicator lights HEAT, STE, EXH and DRY are turned on and off as
each stage is started and completed.
NOTE:
It is possible to change parameters, only when the autoclave is not in
operation. In order to change the fixed preset parameters, proceed as
follows:
To increase or decrease the sterilization temperature, sterilization time
or dry time, follow instructions from sec. 3.2.2.
Pressing the UP/DN key, advances the setting upward or downward by
oneunit. The displays areupdated with everychangein the preset data.
8. During any program that has a drying stage scheduled, the dry stage begins
after the steam exhaust stage. Models EA or EKA are equipped with an air
compressor, that during the drying stage, draws air through a HEPA filter
(0.2m), pushes that air through the heated chamber and out the air outlet
valve to remove moisture and facilitate the drying operation. Drying is
performed with the door closed.
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8.1 To obtain better drying results from the E
and EK models, during the dry stage open
the door partially (as described below) at
an angle of approx. 20-25 degrees. The
heaters will be on at a lower power level
and water vapor and humidity will be
evacuated from the chamber efficiently.
Without moving the closing device from
its position, unscrew the closing device as
far as it will go. Allow the door to open to
the maximum that the closing device will
allow (see picture).
9. At the end of the cycle a buzzer rings for approximately 5 seconds, the
START light switches OFF. The air outlet valve is opened to prevent
formation of a vacuum.
In the event of a program failure, the exhaust valve is opened to release
pressure from the chamber and a continuous buzz will sound for 5 seconds
followed by an interrupted buzz of 7 seconds.
10. Open the door and unload the sterilized material from the chamber.
11. The sterility of instruments processed in unwrapped cycles cannot be
maintained if exposed to a non-sterile environment.
Note:
A minimum
time interval of 10 minutes needs to be observed between the
end of a cycle and the start of a new cycle, to prevent overheating of the
autoclave.
Do not touch the strainer’s cover, mounted on the exhaust line, during and
shortly after operation, it will get very hot.
Touching the hot strainer’s cover may cause severe injuries.
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MAINTENANCE INSTRUCTIONS
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9 MAINTENANCE INSTRUCTIONS
9.1 Preventive and Scheduled Maintenance
The maintenance operations described in this chapter need to be followed,
as indicated, to keep the device in good working condition.
The
instructions that follow can easily be carried out by the office
personnel and do not require a service technician.
Should the need arise, technical assistance or a service technician can be
requested by either calling your dealer or Tuttnauer USA.
9.1.1 Daily
1. Clean the door gasket with a mild detergent, water and a soft
cloth or sponge. The gasket should be cle
an and smooth.
9.1.2 Weekly
1. ONCE PER WEEK, clean the air jet. To ensure that the
temperature inside the chamber rises properly it is necessary
to keep the air jet clean. A dirty air jet will prevent indicator
strips from changing color and cause spore tests to fail. See
sec. 9.4.
2. Clean the water sensor in the rear of the chamber with a damp
cloth or sponge. Cleaning the dirt off the sides of the sensor is
more important that the tip (see sec 9.10).
3. Once per week clean and descale the chamber, copper tubes
and the reservoir using Chamber Brite (see sec. 9.9).
4. Take out the tray holder and trays. Clean the tray holder and
trays with detergent or a non-abrasive stainless steel cleaner
and water, using a cloth or sponge. Rinse the tray holder and
trays immediately with water to avoid staining the metal.
Caution
Do not use steel wool, steel brush or bleach as this can
damage the chamber and trays!
5. Put a few drops of oil on the 2 door pins and door tightening
bolt.
6. Clean the outer parts of the autoclave with a soft cloth.
9.1.3 Periodically
1. Once every month clean and check the safety valve.
2. On EA and EKA models replace the air filter every 6 months,
or as needed (see sec. 9.2).
3. Replace the door gasket every 12 months, or as needed (see
sec. 9.5).
4. Once every six months clean the fan grid with compressed air
from the inside outward.
5. Clean strainer once a month as per sec. 9.8. Cleaning
frequency may be reduced according to previous maintenance.
6. Once a yearinspect the locking device for excessive wear.
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9.2 Replacing the Air Filter (Models EA, EKA)
To facilitate drying the instruments with the door of the chamber closed,
models EA and
EKA are equipped with an air compressor and HEPA
filter (0.2µm). During the drying stage the compressor draws air through
the HEPA filter
and forces the circulation of that air through the heated
chamber to remove moisture from the wrapped instruments. The filtration
of the air is performed by the bacteriological filter. Frequency of
replacement will be determined depending on the usage of the autoclave
and the surrounding environment.
The filter is mounted in an opening on the right sidewall of the autoclave
enclosure, this is to allow easy access for replacing it, (see picture below).
To replace the filter proceed as follows:
1. Remove the filter cover (2) by turning the cover counterclockwise
until it is released.
2. Remove the filter (5) from the filter cover by pulling the filter apart
from the filter cover
3. Cut the tie wrap (4) fixing the flexible tube (3) connecting the filter
to the copper pipe, and pull off the filter.
4. Replace the filter with a new one. Connect the filter (5) to the
flexible tube (3) and tighten it with a tie wrap (4).
5. Connect the filter to the filter cover by pressing the filter (5) into the
hole in the cover (1).
6. Insert the filter to its place inside the autoclave and reassemble the
filter cover by turning it a ¼ turn clockwise. Verify that the cover is
fastened well in its place.
24352
1
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9.3 Draining the Reservoir
Caution
Before starting, ensure that the electric cord is disconnected and
there is no pressure in the autoclave.
The drain valve is located on the front left side of the autoclave after the
door is opened. The function of the drain valve is to drain the water
reservoir.
1. Connect the silicone hose, supplied with the autoclave, to drain into a
bucket.
2. Turn drain valve counterclockwise to the open position.
3. Fully drain the reservoir.
4. With a quart of tap water, flush out the reservoir.
5. Turn drain valve clockwise to the close position.
6. Connect the electric cord to power source.
7. Fill the reservoir with distilled water to just below the safety valve (see
sec 6.5).
8. Turn on the main power switch.
9. The autoclave is now ready for use.
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9.4 Cleaning the Air Jet
(Located in the water reservoir.)
A dirty air jet is the number one cause of failed spore tests
The elimination of air from the sterilization chamber during heat up is
critical to the proper operation of the autoclave. Failure of the air
removal system will be responsible for incomplete sterilization, indicator
strips that do not turn, failed spore tests and aborted sterilization cycles.
A clogged air jet will result in receiving the error message “Low Heat”.
The air jet consists of a small orifice with a clean out wire inserted in it
(wire is permanently installed and will not come out). It is required that
the air jet be cleaned once per week or more often if necessary, to remove
any accumulated dirt and debris.
It is preferred to clean the air jet when the unit is running a cycle and
under pressure. Any loosened debris will be blown away, however, it can
be done while the unit is idle.
1. Remove the water reservoir cover.
2. Clean the hole of the jet by manipulating the air trap wire back and forth
10 times.
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.
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9.5 Replacing the Door Gasket
Pull off the gasket from the door groove. Install the new gasket as
described in drawings 1, 2 and 3 above.
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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9.6 Checking the Safety Valve
(Located in the water reservoir)
In order to prevent the safety valve from becoming blocked, it is
necessary to allow the steam pressure to escape through the valve. This
procedure should be done every month as follows:
1. Operate the sterilization cycle according to the manual.
2. Allow a pressure of approximately 30 psi (260 kpa ) to build up in the
chamber.
3. Turn the unit off.
4. Remove water reservoir cover.
Caution!
This next step will expose you to HOT STEAM.
Caution!
To avoid
being burned by hot steam, do not place your face over the
safety valve.
5. Pull the ring of the safety valve using a tool, i.e. screwdriver, hook, etc.,
and open
the safety valve for 2 seconds, then release. Be careful not to
burn your hands.
6. Turn the unit back on and press the STOP key to abort and vent the
cycle.
7. Wait until pressure decreases to zero, only then can the door be opened.
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9.7 Replacing the Fuse
Caution
Make sure that the electrical power cord is disconnected!
Use
a screwdriver to unlock the fuse holder cover by turning it
counterclockwise ¼ turn, and pull it out.
I
nsert a new fuse into the holder and turn the cover clockwise until
locked.
Make sure that the correct fuse is installed
1. Water Pump Fuse: 1.25 amps.
2. Air Pump Fuse: 2.0 amps for 120V.
1.25 amps for 230V.
For autoclaves
Models E, EK
(without an air pump)
For autoclaves
Models EA, EKA
(with an air pump)
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9.8 Cleaning Water Outlet Strainer
Caution!
Before proceeding, make sure that the electric cord is disconnected
and there is no pressure or water in the chamber.
Warnings
1. The strainer’s cover is HOT
Do not touch the strainer’s cap, mounted on the exhaust line,
during and shortly after operation. Touching the hot strainer’s
cap may cause severe injuries.
2. If maintenance operation is performed while strainer cap is hot,
use heat resistant gloves to avoid injuries.
1. Open the strainer cap.
2. Remove the strainer element.
3. Rinse the strainer with water, using a brush if necessary.
4. Reinstall the strainer element.
5. Close the strainer cap.
.
Cap
Gasket
Strainer
element
Strainer
Housing
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9.9 Cleaning Tabletop 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. Chamber
Brite ™ autoclave cleaner has been formulated specifically to be a fast,
powerful and easy to use cleaner for steam sterilizers.
If the autoclave is not cleaned regularly, dirt and debris will build up and
clog the tubing and solenoid valves. This dirt can also be transmitted to
the instruments during sterilization. In addition, a layer of dirt on the
stainless steel chamber traps moisture against the metal and will lead to
the chamber becoming porous and failing.
It is recommended that your autoclave be cleaned with CHAMBER
BRITE ™ once per week.
Caution!
NEVER use bleach, steel wool, a steel brush or anything abrasive to
scrub or clean the Chamber.
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 Select and start program No. 1.
(without dry). When the cycle is
finished it will automatically exhaust.
5. At the end of the exhaust cycle drain the
water from 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. Select
and start program No. 1. (without dry).
When the cycle is finished it will
automatically exhaust.
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; rinse and wipe the interior of the chamber
with a damp cloth.
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11. Fill the reservoir with distilled water or mineral free water only.
12. Press the manual water fill button and allow a small amount of water
(2-4 ounces) to fill chamber and flush out the fill tube. Remove water
from chamber.
13. The instrument is ready to use.
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.
Formodels1730,2340,2540useonepacket of
CHAMBER BRITE™.
Formodels3140,3850,3870usetwopacketsof CHAMBER BRITE ™.
Clean every 20 cycles or as needed.
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9.10 Water Sensor Cleaning
It is required that the water sensor be cleaned at least once per week.
Cleaning the sensor will ensure that the water level in the chamber is
properly reported to the microprocessor all during the cycle.
The water sensor is located in the rear of the chamber. It is easily cleaned
using a damp cloth or sponge, you may use a mild soapy solution if you
like. It is important to wipe the sides
of the sensor as well as the tip, to
remove any dirt or debris that may have built up.
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Solution
1.1 Make sure the main switch is in the ‘On’ position, (see front view drawing at the
front of this manual).
1.2 Make sure the power cord is properly connected to the machine and the mains,
(see rear view drawing at the front of this manual).
1.3 Check the reset button on the cut-out thermostat, (see rear view drawing at the
front of this manual).
1.4 Make sure the circuit breaker has not tripped. Lift the circuit breaker lever.
2.1 Check the air trap located inside the water reservoir, (see sec. 9.3 Air Trap
Cleaning Procedure).
2.2 Make sure the machine has the proper amount of sterilization load.
3.1 Clean the water level electrode inside the vessel, (see sec 9.10).
3.2 Check that the door is fully closed, the door gasket is seated and there is no
steam leakage. Replace the door gasket if necessary, (see sec. 9.5 Replacing the
Door Gasket).
3.3 Check the leveling of the machine, (see sec. 6, Installation).
4.1 Clean the water level electrode inside the vessel, (see sec 9.10).
4.2 Check that the door is fully closed, the door gasket is seated and there is no
steam leakage. Replace the door gasket, if necessary, (see sec. 9.5 Replacing the
Door Gasket).
4.3 Check the leveling of the machine (see sec. 6, Installation).
5.1 See Low Water problem above.
5.2 The sterilization time has been set for too long of a period, allowing the chamber
to run dry.
10 TROUBLESHOOTING FOR THE OPERATOR
This troubleshooting chart enables the user to solve minor malfunctions, prior to requesting service.
Only technical personnel having proper qualifications and holding technical documentation (including a technician
manual) and adequate information are authorized to service the apparatus.
Problem
1. The machine is not responding.
2. ‘Low Heat’ is displayed.
3. ‘Low Water’ is displayed.
4. ‘Low Pres’ is displayed.
5. ‘Low Temp’ is displayed.
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Solution
6.1 If this message is displayed during heat up it indicates a bad temperature sensor.
6.2 Heating elements are remaining on instead of cycling on and off.
In both cases call for a technician.
7.1 Air jet is clogged. Clean air jet according to sec. 9.4.
7.2 Heating elements are remaining on instead of cycling on and off. Call for a
technician.
7.3 Temperature sensor (PT100) is faulty or dirty. Call a technician.
8.1 Make sure the paper is mounted in the right way. Only one side of the paper is
printable, (see sec. 5.2, Printer handling).
9.1 Make sure the paper is inserted in the printer, (see sec. 5.2, Printer handling).
9.2 Switch off the machine and switch it back on while pressing the feed button on
the printer. If the printer prints a test printout, the printer is O.K. and there is a
problem with the electronics. Contact your dealer to solve the problem.
If the printer does not print the test printout, there is a problem with the printer.
Contact your dealer to solve the problem.
10.1 Make sure the ‘feed button’ on the printer is not stuck.
11.1 Make sure the door is tightened enough and the door gasket is sealing the
Chamber. Replace the door gasket, (see sec. 9.5 Replacing the Door Gasket).
12.1 If you are running a ‘glassware’ program, this is normal. The slow exhaust will
take from between 15 and 20 minutes, (see Program 3 sec 4.3).
13.1 Clean strainer according to instructions, (see sec 9.8).
8. The printer prints, but nothing
is printed on the paper.
9. The printer does not print.
10. When the machine is switched
on, the printer gives paper
feeds all the time.
Problem
6. ‘High Temp’ is displayed.
7. ‘High Pres’ is displayed.
If
equipped
with a
printer
11. The machine is leaking at the door.
12. When running a cycle, the exhaust stage
takes a very long time.
13. Water does not exit chamber due to
clogged outlet strainer.
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Solution
14.1 Open drain by turning counterclockwise. Place a heavy object over the reservoir
cover. Blow compressed air into the drain; this should force any debris back into
the reservoir. Clean out the reservoir.
14.2 Disassemble the drain valve by turning counterclockwise past the stop point.
Remove the valve and clean, blow out the line as needed (see 14.1). Reassemble
the valve by turning clockwise; make sure to press the large “O” ring into the
groove on the autoclave.
15.1 Clean the air jet as per sec 9.4.
15.2 Make sure the sterilization time and temperature are set correctly, if in doubt use
the default settings.
15.3 Make sure the autoclave is not too heavily loaded, (see sec 7).
16.1 Drying cycle may be too short, (see sec 4).
16.2 Autoclave may be overloaded, (see sec 7).
16.3 The chamber strainer may be clogged (see sec 9.8).
16.4 The HEPA filter may be clogged (see sec 9.2).
17.1 Water sensor may be dirty (see sec 9.10).
17.2 Wall outlet voltage may be too high.
17.3 Items may be touching the walls or bottom of the chamber. Load autoclave
according to instructions in sec 7, (Preparation Before Sterilization).
18.1 To determine true rust, use a pencil eraser to remove the brown spot. If there
is no pitting, the instrument is just dirty (see sec 7 Preparation before
sterilizing and sec 9.9 Cleaning the autoclave).
If there is pitting beneath the brown spot, the rusting may be caused by
minerals in the water used for rinsing (see sec 7 Preparation before sterilizing).
18.2 Use only distilled water for sterilizing.
18.3 Make sure dissimilar metals (carbon steel, stainless steel, etc.) have not come
into contact with each other.
Problem
14. The drain is clogged.
15 Spore tests are failing or indicator
strips are not turning.
16. Wrapped items come out wet.
17. Wraps come out burned.
18. Instruments are rusting.
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Solution
19.1 Press the STOP key for 2 seconds to abort any program that may still be running.
20.1 Clean the air jet (see sec 9.4).
20.2 Check for proper voltage at the wall outlet.
21.1 Sterilization temperature set to high. Maximum setting 274ºF (134ºC).
22.1 The autoclave may be overloaded (see sec 7 Preparation for Sterilization).
22.2 Replace the HEPA filter (see sec 9.2).
23.1 Check water level in reservoir.
23.2 Check for an obstruction at the bottom of the reservoir blocking the pickup tube.
23.3 Clean the water sensor (see sec 9.10).
23.4 Try filling the machine manually using the Manual Inlet key (see sec 3).
24.1 Use Chamber Brite ™ to clean the autoclave; very dirty machines may require two
cleanings, (see sec 9.9).
25.1 Remove the trays and rack and clean as per instructions in sec 9.1.2.
Problem
19 Keyboard does not respond.
20. Autoclave takes too long to heat up.
21. Loud noise coming from reservoir.
22. Drying takes too long.
23. Chamber not filling.
24. Chamber very dirty.
25. Trays and rack very dirty.
If the problem persists, contact your dealer or Tuttnauer USA for further assistance.
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Solution
24.1 Use Chamber Brite ™ to clean the autoclave; very dirty machines may require two
cleanings, (see sec 9.9).
25.1 Remove the trays and rack and clean as per instructions in sec 9.1.2.
Problem
24. Chamber very dirty.
25. Trays and rack very dirty.
If the problem persists, contact your dealer or Tuttnauer USA for further assistance.
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