Getinge HS-6613 User manual
HS 6613 ER-2
UNITED DOCTORS HOSPITAL
2530290-090-01
Original User Manual
TABLE OF CONTENTS
PREFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Attention symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Reporting an accident or incident . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
HS 66. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Overview of safety devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Built-in electrical steam generator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
THE PROCESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
The steam sterilizing process. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Maintenance program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Documentation of the process. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Documentation of the process. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
INSTRUMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Program start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Alarms - Avanti. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Error codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
General advice when using the sterilizer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Weekly cleaning - Avanti. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Approved consumables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
OPERATION INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Daily preparations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
CONTROL UNIT PACS 3500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Control panel type Avanti . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Operator menu Avanti. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
PROGRAM COMBINATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
PREFACE
This USER MANUAL, contains all the information you need in order
to safely operate your GETINGE STERILIZATION AB equipment.
Please read and follow the entire manual carefully, and please pay
special attention to the framed warnings and caution remarks. See
“Attention symbols” under SAFETY
In the event of an accident or incident you are obliged to report this. See
“Reporting an accident or incident” under SAFETY
GETINGE STERILIZATION AB shall not be liable for any damages,
directly or indirectly, due to actions, which are not in accordance with
this manual.
By following this manual you are ensured quality equipment for many
years ahead. Should any unforeseen problems occu r, you are of cour se
welcome to contact our local representative.
Manufacturer address:
Getinge Sterilization AB
Ekebergsvägen 26
305 75 Getinge
Sweden
Fax +46(0) 35 54952
1
2
SAFETY
Attention symbols
Some of the warnings, instructions and advice in this manual are so
important that we use the following special symbols to draw attention
to them. The designs and symbols used are:
Warnings
This symbol indicates a warning in the text of the manual.
It warns of a hazard that may lead to more or less severe
injury and in certain cases mortal danger.
The symbol is also used to highlight safety components,
etc. See “Safety devi ces - an ove rview” i n the Introduction
chapter in the USER MANUAL or in the Maintenance
chapter in the TECHNICAL MANUAL.
Instructions
Advice
This symbol highlights instructions that are important for
avoiding damage to the unit and/or load, among other
things.
This symbol indicates important advice and hints that
make it easier to work with the unit.
SAFETY -
3
Symbols on the unit
Hot surface
This symbol warns of a hot surface.
Electrical danger
This symbol warns of an electrical danger.
Other dangers
This symbol warns of other dangers.
4 -
SAFETY
Reporting an accident or incident
Use this information when reporting incidents and accidents involving the unit.
If an accident or an inci dent associated with the ster ilizers occurs, t his
must be reported immediately in writing to the address below. The
report must be used to identify the cause of the accident or incident and
to what extent the occurrence was due to the unit
The unit is a product in the GETINGE range.
The unit may also be a sterilizer that is a medical engineering product
and which conforms to the EU medical devices dire ctive, or which is
constructed in a similar way to a medical device. Under the medical
devices directive, the manufacturer must investigat e the cause of accidents/incidents that occur and report them to the authorities concerned.
The investigation may lead to changes in new or already delivered
devices or in instructions and guidance.
The following circumstances must be reported:
1. Circumstances that caused the death of a patient, user or someone
else, or that caused serious deterioration in the health of a patient,
user or someone else.
2. Circumstances that might have caused, the death of a patient, user
or someone else, or that might have caused serious deterioration in
the health of a patient, user or someone else.
The following infor mation is required :
The manufacturing number of the unit (on a label in the electrical cabinet), Date/time of event, Description of event, Consequences of event.
Contact: Name, Phone number, Address:, E-mail:
The information must be sent by letter or fax to:
GETINGE STERILIZATION AB
For the attention of: Quality Manager
Box 69
305 05 GETINGE
Sweden
Fax: +46 (0)35 549 52
SAFETY -
5
6 -
SAFETY
INTRODUCTION
HS 66
HS 66 is the designation of a series of GETINGE high-pressure autoclaves with vertically sliding automatic doors, all with the door opening
660 x 660 mm
There are both stand-alone and built-in versions.
The autoclaves are intended for sterilization of materials in the health
service as well as in industry. They are adapted to their particular functions by the choice of control equipment. This is built up around a
microprocessor and therefore provides a very large number of process
types, all characterized by exceptional accuracy in controlling the process parameters. The operator can call up on a display information on the
current process, current pro cess phase and the actual values of the
parameters while the process is in progress.
The dominant sterilizing agent is steam at a temperature of 121 -134 °C.
Material that is damaged by this temperature may be sterilized in some
autoclave models in formalin vapour at 55 - 80°C.
Most types of items can be treated in the HS 66-autoclaves, using
adapted programs:
Instruments, machine parts, glass, plastic, leather, textiles, hot or cold
liquids in open or vented containers and small rigid pressure-tight containers filled with liquids.
INTRODUCTION -
7
European standard EN 285 (Australia/New Zeeland, Standard AS 1410)
specifies the use of fixed programs only. However, the control equipment of HS 66-autoclaves allows the programs to be made variable during the time testing is in progress.
As not only the processes but door operation too are controlled automatically, the step to full automation of the handling of sterile items is not
a long one. The control unit is therefore prepared for controlling an
autoclave having a GETINGE ASF automatic loading and unloading
unit.
As with other GETINGE double-jacketed autoclaves, the external surface of the cham ber is more than half c overed by all-welded U-sections.. These stiffen the fla t walls of t he pressure vessel, and at the same
time accommodate the stea m which keeps the cham ber walls warm in
order to minimize condensation in the chamb er. The design principle
makes all welds accessible for visual i nspec tion aft er t he th ermal insulation has been removed.
A vacuum pump of the water-ring type removes air, steam and condensation from the chamber and door-gasket groove. The sealing water of
the pump is taken from an open tank which in some cases also supplies
the feedwater pump, on autoclaves with a steam generator, with water.
The condenser between the chamber and vacuum pump converts waste
steam to water. This reduction of the pump handling volume contributes
greatly to improving pump efficiency and protecting the pump and
waste pipes against high temperatures.
A well-damped discharge system after the vacuum pump and welldimensioned thermal insulation around the chamber mean that the autoclave affects the surroundings to an insignificant extent and is therefore
easy to position.
HS 66-autoclaves have to be supplied with electricity, cold water, compressed air and steam. When steam is supplied from a central steam-producing plant, its distribution system is required to be correctly pressurereduced, protected by a safety valve and produce a quality of steam
which is suitable in the context of sterilization. (For some versions the
pressure reducer is already fitted)
If the steam is not suitable in the context of sterilization, a steam generator can be installed inside the trim plates on all models. The task of the
8 -
INTRODUCTION
steam generator is to generate pure steam using the centrally produced
steam.
If there is no steam network or there are reasons for not using the steam
network, an electric steam generator may be installed inside the trim
plates on all models.
Overview of safety de vi ce s
Cladding and front panels must prevent access to the parts
of the installation that are normally accessible only to
trained personnel.
General access to an installation supplied without cladding, which should normally only be maintained by trained
personnel must be prevented. A convenient way of preventing access is to install the equipment in a lockable
area.
Additional information about the above safety components are given in
the “Safety checks”, “Utility data” a nd “Periodic maintenance” sec tions
of the TECHNICAL MANUAL.
Safety components
Every unit is equipped with a number of components with the specific
purpose of ensuring the safety of personnel. These items are marked
with a warning triangle below in the following documents:
•
•
•
These components have undergone special tests before being accepted
as safety components. For this reason, they must not be replaced with
components of any make or design that has not been appr oved by
GETINGE.
It is of the highest importance that the operational reliability of these
components is continuously upheld during their entire service life.
electrical diagrams
pipework diagrams
spare parts lists
The signs are used not only to indicate important components, but also
to draw attention to other safety factors that call for special attention,
such as dimensions, tolerances, materials, etc.
INTRODUCTION -
9
Doors
Emergency stop
The doors are closed and locked while the process is running and remain
locked in the event of media loss. The doors cannot be opened until the
pressure in the chamber has been equalized with the ambient pressure,
not even if fault management gives an opening command. The sliding
doors are operated by a compressed air cylinder which has a severe ly
throttled inlet. A drain valve with a considerably greater flow capaci ty
than the inlet is located in the bottom of the cylinder, which is pointing
upwards. Objects that obstruct the upward motion of the door pr ess
down a metal plate which op ens the drain valve, causing the do or
motion to stop. This prevents operator injuries and material damage. A
support latch holds the door so that it does not open if the pneumatic
operating cylinder loses pressure. When the pressure of the compressed
air is so low that the door cylinder cannot support the weight of the door,
the air is not capable of pulling away the support latch.
In the front panel, at the side of the door, there is a pushbutton with these
functions:
A On door operation.
B When the door is closed
Door interlock key
The front panel contains a key switch, intended for use whe n cleaning
the sterilizer or when it is necessary to reach into the chamber for any
reason.
With the key removed, the door cannot be closed. See also under
"Cleaning the chamber" in the Operation chapter.
Trim plates
Panels are possible to dismount by means of tools or keys. The panels
form a barrier for ope rators, but not for specially tra ined technicians.
Stainless steel surfaces within reach of the operating personnel are insulated and cooled to a harmless temperature.
to stop the door motion immediately during door operation. Pressing the button triggers an alarm. This alarm stops the door immediately:
The current process is aborted and all valves for media to the chamber are closed. This also triggers an alarm.
Valves
10 -
INTRODUCTION
If the equipment has electrically and/or pneumatically actuated valves
they are normally made to close by means of spring force. This prevents
Pressure vessels
Safety valves
undesired flow through the valves in case of power failure. A f ail safe
function is achieved.
The sterilizer chamber jacket and steam generator are pressure vessels,
designed and built in accordance with standards laid down by official
bodies charged with monitoring this area of safety.
The internal steam supply to the sterilizer is protected against excessive
supply pressure by a safety on the steam generator, the sterilizer or both.
The connected supply lines from external steam, water or compressed
air networks must be protected against exce ssive pressure by safety
valves. The sterilizer supplier is not responsible for these valves. Permitted supply media pressures are stated in “Utility data”.
Safety valves limit the system pressure, providing the last line of protection to prevent the design pressure of the vessel from being exceeded.
Safety valves are required to be inspected at prescribed intervals.
Monitoring the pressure behind the door seal
All valves admitting any medium to the chamber are kept closed until
the pressure behind the door seal is high enough to guarantee the tightness of the chamber.
Built-in electrical stea m generator
The sterilizer also has a fully-automatic built-in steam generator, with
tubular electric elements as the heat source.
Operation
The heating power is divided among a number of groups of elements.
The elements are controlled by a pressure switch with double changeover contacts, one for each heater element circuit. One group of contacts
limits the operating pressure of the steam generator. The other controls
reconnection of the power when the minimum pressure is reached.
Pressures higher than those stated on the electrical diagra m should not
be set, since the steam will be superheated when admitted to the sterilizer chamber. On the other hand, if the operating pressure is allowed to
fall too far, the steam tends to become wet, which is undesirable for sterilisation purposes.
INTRODUCTION -
11
A feedwater pump supplies the steam generator with water from a n integral water tank with air trap. The water level of the steam generator is
sensed by a device which controls the operation of the pump so that the
level is kept almost constant. Boil-dry protection cuts off the supply of
electric power to the elements when the water level is low.
See also “Steam generator settings and controls” under Advice and
instructions in the TECHNICAL MANUAL.
Control switch
The steam generator and sterilizer are controlled by the same switch. On
sterilizers with med double steam systems there is an extra shutoff button marked Steam generator.
Pressure regulation in power stages
The system prevents wear of the element contacts by switching the
power in and out in two stages at d ifferent pressure levels and with a
time offset between switch-on and switch-off for the first stage.
Spark-reduction connection
As well as shortening the life of electrical contacts, sparking at the contacts may also cause interference with nearby electronic equipment.
The anti-spark protection is based on fast-act ing a uxiliary rela ys t aking
over the load from the slow-breaking contacts of the pressure switch for
operating pressure, so largely eliminated sparking.
Safety valve, steam generator
The mandatory periodic check of the operation of the steam generator
safety valve can be done simply by means of the keyswitch described
below. See also the Maintenance chapter in the TECHNICAL MANUAL.
Keyswitch “Test pressure limiter”
When the key is in the safety valve check position, steam is produced
continuously and regardless of the setting of the operatin g pressure
switch.
Water level regulation
Version with conductive measurement
The Getinge conductive level system is designed for water with a conductivity above 2 μS/cm.
12 -
INTRODUCTION
The task of the level device is to sense and control the water level of the
steam generator. The main components are a sensitive relay and two
electrodes, the ends of which touch the water surface at the upper and
lower fill levels. Contact of the upper electrode with the water stops the
feedwater pump, whilst absence of contac t at th e low er elec trode st arts
the pump. A third, lowest, electrode cuts off the electric powe r supply
to the heating elements when the electrode loses contact with water; see
boil-dry protection below.
The type and sensitivity of the level relays can be adapted to varying
water conductivity. If the f eedwater is de-ionised, a high-sensitivity
level relay is required and the sensitiv ity setting must be increased as the
conductivity of the water decreases.
The sensitivity of the level relay is automatically adjusted at power up
to match varying conductivity.
The distance between the electrodes is another factor that affects the
overall sensitivity of the level control system.
Version with float
The GETINGE f loat-based level cont rol system is intended for water
with a conductivity of 0 to 2 μS/cm, but it can also be used for higher
conductivity.
The task of the level device is to sense and control the water level in th e
steam generator. The main components are a float with two level contacts and two relays. The level contacts change over at the upper and
lower fill levels. The upper contact stops and starts the feedwater pump,
whilst the lower contact cuts off the electric power supply to the heating
elements; see boil-dry protection below. The purpose of the relays is to
protect the float contacts from harmful currents.
Water-level monitoring
A lamp in the “reset level” button on the steam generator control panel
is lit when the water level is correct. On some models, the water level
can also be read off on a sight glass. The sight glass has two valves
which can be closed to prevent loss of water and steam in the event of
breakage of the sight glass.
Boil-dry protection
If the water filling fails, the boil-dry protection cuts of f the electric
power supply after a certain time, when the water level has fallen below
a minimum limit.
Overheat protection
This protection prevents the steam generator from overheating if the
boil-dry protection should fail to operate.
INTRODUCTION -
13
Overfilling protection
The timer relay prevents the steam generator over-filling with feedwater
if the level control system stops working.
“Reset level” button
If a fault occurs on any of the safety components of the steam generator,
it must be reset manually in accordance with applicable boiler regulations.
The button is also used when filling an empty steam generator with
water. See the Function check chapter in the INSTALLATION MANUAL.
“Test level limiter” button
This button is provides a quick test of the operation of the boil-dry protection. The test interrupts the level circuit without the need to reduce
the water level.
RCD
Safety switch
Some types of steam generator must be connected to the electric power
supply via a residual current device (RCD). See the Installation instruc-
tions chapter in the INSTALLATION MANUAL.
It must be possible to isolate all electric power supplies to the steam
generator with a safety switch. The safety switch must be locka ble in the
OFF position. See also chapter Installation in the INSTALLATION
MANUAL.
14 -
INTRODUCTION
THE PROCESS
A
B
C
The steam sterilizing process
The universal steam autoclaving process can be divided into three main
phases:
APre-treatment
B Sterilizing
C Post-treatment
Pre-treatment
Sterilizing
It has been found that moisture is an essential element in achieving sterility with steam. It is therefore important that the steam comes into
close contact with the micro-organisms to be killed.
A pre-treatment phase consisting of a number of pressure variations following a certain pattern effectively removes air from various types of
goods and produces the moisture required in the subsequent sterilizing
phase. Depending on the equipment of the sterilizer, steam may pass
through before the evacuations.
Air removal when autoclaving liquids in open containers is by applying
a vacuum or by flowing steam, to ensure that the liquid does not boil
during the decompression periods in a pulsating procedure.
For sterilizers equipped with a computerized cont rol unit, the sterilizing
time starts at the instant in the pre-treatment phase of the process when
the chamber temperature sensor signals a temperature equal to or higher
than the sterilizing temperature specified for the current program. An
alarm sounds if the temperature sensor registers a value outside the temperature band, or if the temperature differs by more than the permitted
amount from the chosen sterilizing temperature.
THE PROCESS -
15
Post-treatment
When sterilizing liquids, the te mperature is measured with a temperature sensor in the load. The condition for countdown of sterilizing time
is that both temperature sensors in the chamber and the sensor in the
load indicate the programmed sterilizing temperature.
The purpose of the post-treatment is to normalize the temperature and
moisture content of the goo ds. All goods except liquids are therefore
exposed for a certain time to a vacuum below 70 mbar (a). After suc h
post-treatment. textiles may appear to increase in weight by about 1%.
This represents the normal addition of water that occurs during steam
autoclaving process.
Post-treatment of liquids that have been sterilized in open or half-closed
containers consists of a self-cooling period. During this period the pressure and temperature are lowered very slowly until the temperature is
well below the boiling point of the liquid. This process is speeded up by
applying a slight vacuum to the chamber when its pressure appr oaches
atmospheric.
NOTE: Liquids must only be processed in sterilizers which
have a program for this type of load.
Pressure equalization from vacuum takes place by admitting atmospheric air into t he cham ber via a f ilter tha t preve nts bact eria from entering the chamber. The efficiency of the filter is 99.998% for particles of
the order of 0.3 micron (0.0003 mm) in size.
The sterilizer door is kept closed by the door gasket until the pressure in
the chamber is equal to atmospheric pressure.
Process adaptation
A large number of factors such as type of goods, goods carrier, packaging material, etc. affect the result of the process. The control equipment
offers a number of features that can be used to optimize the processes to
suit the requirements of different customers. For further information,
see "User-programmable functions" in the TECHNICAL MANUAL.
16 -
THE PROCESS
Maintenance program
Leak test
Fully automatic process for steam autoclaves
With autoclaves equipped with an analogue pressure transducer the leak
test can easily be automatically performed. The leak test is to be performed with an empty chamber. The chamber additionally has to have
been warm, for example as a result of a heating program having been
run beforehand.
The checking process has its own program button (see program list)
which starts with the vacuum system evacuating the chamber. Depending on the equipment of the sterilizer, steam may pass through before
the evacuation. The pump in the vacuum system stops when a deep vacuum has been created. For a short period of time after this evacuation a
slight rise in the chamber pressure takes place which is not due to leakage but results from evaporation of condensate and temperature-volume
changes in the recently rarefied residual steam.
It is therefore not possible to establish that an increase in pressure in the
chamber is caused by leakage until conditions in the chamber have stabilized. It is not until about 10 minutes after the pump has stopped that
the pressure and time start to be measured.
A satisfactory leak test allows for a maximum permissible pressure rise
of 13 mbar / 10 minutes.
With double-ended autoclaves, the loading door opens after a completed leak test either automatically or manually, depending on how it
has been programmed.
A Normal vacuum 5 min.
B Stabilization of chamber atmosphere 10 min.
C Check time 10 min.
D Pressure stepping max. 13 mbar.
Documentation of the process
A panel printer prints out data logged during the process.
THE PROCESS -
17
See Components in the TECHNICAL MANUAL for printer settings
and maintenance.
The system stores the last process so that an “emergency printout” can
be produced afterwards if there is a problem with transmission of the
printout or with the printer itself.
If the system is fitted with a SUPERVISOR, the printer is connected to
that. Otherwise it is normally connected to the control system. SUPERVISOR is an inde pendent measu ring system that records the process
data of the sterilizer. See a lso Control unit in the TECHNICAL MANUAL for further information.
The illustration below is schematic and must not be used
as a template for evaluating individual process results.
13:47 29 06 04
SIGNATURE ………
..
PROCESS OK
00:24:58 71.2 132.5 85.2 0.995
PROCESS COMPLETE
00:23:39 75.5 132.5 85.2 0.039
EQUALIZATION
00:18:35 51.1 132.2 88.6 0.096
00:16:14 134.9 135.4 134.8 3.076
DRYING
HIGHEST TEMP 135.2C
LOWEST TEMP 134.9C
5
134.9C
6
18 -
THE PROCESS
00:16:08 135.0 135.5 134.9 3.094
POST-TREATMENT
00:12:07 134.1 134.3 134.0 3.039
STERILIZING
00:09:10 106.5 132.6 103.6 1.088
4
HEATING
00:08:50 115.8 132.5 115.6 1.880
00:08:33 107.8 132.6 104.3 1.107
POS PULSING
00:08:14 115.9 132.5 115.7 1.876
00:07:57 107.2 132.6 103.1 1.103
POS PULSING
00:07:38 116.0 132.6 115.7 1.880
00:07:21 106.0 132.6 100.1 1.119
POS PULSING
00:07:02 116.1 132.2 114.9 1.877
00:06:44 104.5 132.4 77.2 1.090
POS PULSING
00:06:24 116.6 132.3 87.4 1.875
00:05:52 92.0 132.5 34.0 0.835
POS PULSING
00:05:32 78.4 132.7 33.7 0.065
00:04:22 91.3 132.5 33.9 0.836
NEG PULSING
00:04:01 75.1 132.5 33.4 0.066
00:02:54 81.4 132.5 33.7 0.849
NEG PULSING
00:02:37 81.9 132.6 33.4 0.099
00:00:15 46.6 132.6 33.4 0.997
NEG PULSING
00:00:00 46.5 132.5 33.4 0.997
START
4
PROG. TIME AI00 AI01 AI02 AI03
PROGRAM: P1 POROUS LOAD 134
AI03 CHAMBER PRESSURE
AI02 AIR DETECTOR
THE PROCESS -
19
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