Getinge Castle OPERATING INSTRUCTIONS

EXIT MANUAL
ALLEN BRADLEY
7/16/97
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EXIT Manual
EXIT Manual
OPERATOR MANUAL

Attention symbols

Some of the warnings, instructions and advice in this manual are so important that we used the following special symbols to draw attention to them:
Warnings
This symbol indicates a warning. Injury or even death may result if you do not heed it. This symbol is also used to mark out safety components etc. See section ”Safety devices, a survey” in chapter ”Introduction” in the OPERATOR MANUAL or chapter ”Maintenance” in the SERVICE MANUAL.
Instructions
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Advice
This symbol indicates instructions which are important, for example to prevent damage to the s terilizer and/or the load.
This symbol indicates important advice and hints that make it easier to work with the sterilizer.
OPERATOR MANUAL TABLE OF CONTENTS
Attention symbols
1. INTRODUCTION
Introduction GE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Safety devices, a survey . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. THE PROCESS
Steam/vacuum-process . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Chamber leak test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
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3. INSTRUMENTS AND CONTROLS
4. OPERATION
Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
General advice when using the sterilizer . . . . . . . . . . . . . . . . . . . . 2
Monitoring the load temperature when sterilizing liquids . . . . . . . . . . . . 2
5. INSTALLATION
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Electricity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Steam . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Compressed air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Exhaust from safety valve . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Functional test prior to use . . . . . . . . . . . . . . . . . . . . . . . . . . .11
6. OPERATING INSTRUCTION
Preoperation checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Sterilizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Close down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Blowing safety valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Program Combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
7. CONTROL UNIT ALLEN BRADLEY
Operating panel SLC 504 . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Push Buttons/ Indicator Lights - Load Side . . . . . . . . . . . . . . . . . . . 4
Push Buttons/Indicator Lights - Unload Side . . . . . . . . . . . . . . . . . . 5
Passwords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Detailed screen dis p lays . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Alarm and System Messages - Troubleshooting . . . . . . . . . . . . . . . .26
System Interlocks - Horizontal Doors . . . . . . . . . . . . . . . . . . . . .36
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
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1. INTRODUCTION
Introduction GE
Sterilizer type GE is the collective designation of a range of GETINGE high pressure sterilizers using steam and vacuum in the process for ster­ilization. GE-sterilizers are available with vertically or horizontally sliding doors. Both single an d double ended types exist.
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The GE-sterilizers are intended for sterilizati on of materials in the health service as well as in the pharmaceutical industry. The type of materials include: instruments, utensil s, glass, plastic, leather and tex­tiles. Some sterilizers have special programs for sterilization of hot and cold liquids. The dominant sterilizing agent is steam at a temperature of 120-135 °C.
Adaptation to r especti ve steril izat ion req uire ment s is made pri mari ly by selecting the type of software for the control unit. The sterilizer con­trol unit is compu terized and prov ides for a large variety of processe s with very good accuracy in control of the process parameters. Both real time and set values for a process may be displayed on request.
The software which controls the processes can be preprogrammed with cycle parameters to provide spee d and safety in the production line. When it come s to un ique c ycles, m any pr oc ess pa rame ter s can be modified from time to time by the operator.
Reprogramming of t he control unit can be made on site. The automatic doors are provided with safety devices to pro tect the
operator.
The sterilizer chamber, mad e of acid pr oof stainl ess steel, i s covered externally by seal-welded u-channel. About half of the chamber area is covered by these u-chann els. The y serve b oth a s stif fe ning b ars for t he
1.1
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pressure vessel and a s a stea m ja cket pro vidi ng t emper atur e c ontr olled steam heating for the chamber walls.
The GE-type sterilizers should be supplied with electricity, cold water, compressed air and steam. If central steam is not available or there are reasons not to use it, GE-units can be equipped with an electric steam generator.
Safety devices, a survey
The panels of the sterilizer shall prevent the operator access to the inner parts of the sterilizer. Only specially trained personnel have access to the inner parts.
Safety components
Every sterilizer is equipped with a number of compo nents the purpose of which is to specifically guarantee human safety. These items are marked with the sign below:
Electric diagrams
Piping diagrams
These components have been subject to special tests before being accepted as safety components and must therefore not be substituted by any make or execution not approved by Getinge/Castle, Inc. It is of greatest importance that these components are kept in good working condition in order to maintain a safe function during the steril­izer life time.
1.2
Doors
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The sign is used not only to point out important components, but also to emphasize such other safety factors re quiring special attention as measurements, tolerances, material etc.
The doors are kept closed by the automatic control unit while cycles are in progress and also when supply media fail. The doors do not open until the condition chamber pressure = atmopheric pressure is fulfilled, not even in case of an electric failure causing an opening command. The vertically slid ing door i s actuated b y a compressed ai r cylinde r with a choked air inlet. A much larger outlet is arranged directly at the cylinder end. Objects stopping the upward motion of the door will exert pressure on a plate running the entire length of the top of the door. The plate acts directly upon the outlet valve which opens thereby interrupting the door motion. This will prevent operator injuries and material damage. A brace stops the door from opening in case the pneumatic cylinder should unintentionally become depressurized. The brace can not be removed in case the compressed air pressure is to low to keep the door in the upper position.
Emergency stop
Trim plates
Valves
In the front pa nel, at the side of the do or, the re is a push but ton mounte d having dual functions:
A While actuating the door:
To stop the door motion immediately. A push on the button releases an alarm resulting in th e door stop­ping its motion.
B Whil e the door is closed:
During a cycle, the process is aborted and all valves for media to the chamber close. This releases an alarm.
Panels may be removed by means of tools or keys. The panels form a barrier for operators, but not for specially trained technicians. Stainless steel surfaces within reach of the operating personnel are insulated and cooled to a safe temperature.
As standard, electric and pneumatically actuated valves are normally closed (forced closed by means of a spring force when not actuated). This prevents undesired flow through th e valves in case of power fail­ure. A fail safe function is a chieved.
1.3
Pressure vessel
The sterilizer chamber and jacket are pressure vessels, built in accor­dance with regulations stip ulated by ASME.
The pressure vessels are protected against excess pressure by use of safety valves.
The pressure vessels and safety valves comply with Section VIII of ASME pressure vessel code.
Monitoring the pressure behind the door seal
All valves admitting medium to the chamb er are kept closed until the pressure behind the door seal is high en ough to guar antee th e ti ghtne ss of the chamber.
Monitoring the load temperature when sterilizing liquids
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1.4
2. THE PROCESS
Steam/vacuum-process
As the sterilizer is equipped with a vacuum pump it can serve as an ordi­nary steam sterilizer, suitable for sterilization of utensils, containers, textiles etc.
The universal steam/vacuum process can be divided into pretreatment (A), sterilizing (B) and post-treatment (C).
A
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B
C
Pretreatment
Sterilizing
It has been generally accepted that moisture is an essential element in achieving sterility with steam. Therefore it is important that th e steam comes in close contact with the microorganisms to be killed. Any air present serves as an ins ulation which preve nts the contact and low ers the temperature.
A pretreatment p hase, consisting of a nu mber of pressure varia tions following a certai n pattern , effectiv ely remove s air from v arious type s of goods and produces the moisture required in the subsequent steriliz­ing phase.
Air removal when autoclaving aqueous solutions in open containers is made by a single prevacuum or by steam-air displacement. This pre­vents the liquid from boiling during the decompression periods that occurs in a pulsating procedure.
The sterilization timer starts fr om the moment when the chambe r tem­perature transducer signals a temperature equal to or higher than the chamber temperature set point. Count down of the sterilizing time stops at temperatures below this sterilizing temperature.
When sterilizing goods, in particular liquids, where the sterilizing temperature is measured within the goods, load sensors are used. The
2.1
Post treatment
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condition for starting the sterilization timer is when the chamber sensor and all load sensors indicate a tempe rature equal to or above nominal sterilizing temperature
The post treatment is in tended to normaliz e the t emperatur e and mois­ture content of the goods. All types of goods, except liquids, are exposed to a deep vacuum for a certain period of time.
The post treatment of aqueo us solutions sterilized in open or vented containers consi sts of a period of natural coolin g. The pressure a nd tem­perature are lowered slowly until the temperature of the liqu id is safely below its boiling point. This process is speeded up by applying a slight vacuum to the chamber when its pressure approaches atmospheric.
The sterilizer door will remain sealed by its gasket until atmospheric pressure prevails in the chamber.
Chamber leak test
The autoclave is equipped with a program for automatic leak test of the autoclave chamber. A leak test shall be performed with empty chamber.
The leak test process has its own program number (See list of pro­grams).
The vacuum pump evacuates the chamber. The pump stops when a deep vacuum is reached. For a short period of time after this evacuation a slight rise of the chamber pressure takes place which is not due to leak­age but results from evaporation of condensate and temperature pres­sure changes of the recently evacuated residual steam.
A chamber pressure rise caused by air leakage can not be detected until the conditions in the chamber are stable. Not earlier than 5 minutes after the vacuum pump has sto pped should the pressure and time be measured.
A satisfactory leak test allows for a maximum permissible pressure raise of 0.5 psig in 1 hour. A failed leak test will result in an alarm.
Test period
2.2
Air filter sterilization and test
The sterilizer is eq uipped with a pro gr a m for automatic air-fi lter steril­ization.
The filter sterilization ha s its own program number (See list of pro­grams).
The filter is sterilized by passi ng steam throug h the filter and the filt er housing. A temperature sen so r in the piping controls the temperature.
After sterilization the system is cooled by a restricted ai rflow through the filter.
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2.3
3. INSTRUMENTS AND CONTROLS
Load Side
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1. Jacket pressure gauge 5 Emergency stop 2 Chamber pressure gauge 6 Alarm Acknowledge 3 Operator Panel 7 Open Door 4 Control voltage switch 8 Close Door
Operator panel
Get acquainted with the function of the buttons and signal lights on the operator panel by studyi ng the in Chapter 7 in the Operator Manual.
Emergency stop
See Safety devices, a survey, Chapter 1 in the Operator Manuanl.
3.1
4. OPERATION
Start-up
Before start-up the operator selects a suitable program. Where appropri­ate the operator specifies process parameters and other information requested by the control system.
The process is then started by pressing the start button.
Process start-up is prevented if:
there is an unacknowledged alarm.
the door is not closed and interlocked in accordance with the cond i-
tions imposed. the self-checking of the cont rol system has detected a fault at the
door limit switch.
EXIT MANUAL
the keyswitch for manual stepping is activated.
media supply (i.e. steam or water) is not available (only if the steril-
izer is equipped with pressure switches for this). the jacket temperature has not been reached (only if the process
includes jacket heating).
Idling sterilizer
An alarm situation for an idling sterilizer stops it from being started.
Call for a technician.
Repeated alarms
In case repeated alarms make it impossible to end the cycle, let an authorized technicia n end the cycle manually.
When several faults occur, onl y the last will be displayed.
Blowing safety valve
In case the safety valve on the chamber or jac ket blo ws:
Press the EMERGENCY STOP button.
If ineffective, cut the power with the wall-mounted disconnect.
Call for a technician.
4.1
General advice when using the sterilizer
Keep the sterilizer door closed when not sterilizing.
Be alert to everything that app ears unusual such as leaks, humming
solenoid valves, jamming mechan ical devices etc. Remedy the situ­ation before it becomes a malfunction
When loading:
Place all load sensors in the load. Be careful not to cut or run over the
sensor cables when loading and unloading, as well as when closi ng the doors.
When running Steam/vacuum process:
Arrange bowl shaped articles with the hollow part down wards.
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Empty containers (bottles, flasks, test glasses etc.) should be placed
with their openings fac in g do wn wards. Heavy goods should be placed near bottom of the chamber.
Monitoring the load temperature when sterilizing liquids
If the door on a sterilizer, containing a load of liquids, is opened before the liquid temperature has fallen below a certain temperature, closed bottles may explode while open containers may boil over. The course may develop violently with great danger to human life and technical equipment.
Safety arrangements
One or several temperature sensors in the load are sensing the tempera­ture in the liquid. Th ese sensors keep the sterili zer doors closed until the temperature is safely below the boiling point. An alarm will be emit­ted in case of a break or short circuit in the sensor.
4.2
Weekly cleaning (to be made by the daily operator)
The sterilizer should have cooled down before cleaning. To reduce the risks for injuries, shut the power of.
1. Clean the chamber drain strainer.
2. a) Remove shelf guides and loose plates.
b) Clean the chamber internally. c) A non chloric cleaner should be used. If particularly stubborn, scouring powder or chrome cleaner could be used occasional ly.
Steel wool must never be used!
Sterilizers frequentl y used for sterilization of chloric solutions demand thorough cleaning as residuals may cause serious corrosion even in stainless materials. An acetified cleaner is best suited for this purpose. Thorough rinsing is essential.
3. Clean the sterilizer external stainless steel surfaces w ith a normal
household cleaner that does not contain abrasive. Take care when cleaning lacquered sur faces, texts and plastic articles.
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4.3
5. INSTALLATION
Find out the central point of gravity when lifting and trans­porting a packed or not packed sterilizer thereby avoiding serious accidents.

Unpacking

• Check when unpacking the apparatus that the NB No. of its data plate
conforms with the N B No. of the documents.
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Storage

• Check that the sterilizer is undamaged. Any transportation damage
should be reporte d within seven days to the transport company that was responsible for delivery.
• Do not remove the protective plastic film from stainless steel panels
until the installation is comp leted.
• There is certain equipment, such as expendable items; control unit;
etc. packed inside the sterilizer chamber.
Please note that these articles are specific for each steril­izer. When unpacking more than one sterilizer the articles are not to be interchanged.
The sterilizer should be st ored in a tempera ture betw een 36oF and 104 °F and at a maximum relative humidity 95% (not condensating).

Installation

clearance space on both sides for good operation and easy and saf e maintenance of the equipment. The back of the sterilizer may if nec­essary come up close to a wall. See also appropriat e diagrams and drawings.
5.1

Connection

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• Arrange for escape distances, as directed from labor safety point of
view, to be contained.
• Place stainless steel floor pads under each levelling leg to protect the
floor. Adjust the legs to make the loading height fall within specified dimension, while checking by means of a spirit level that t he steril­izer chamber bottom is horizontal.
Certain installation operations should be carried out by authorized technicians. This is especially the case when it comes to electricity, steam water and air. Faulty accomplished installation may jeopardize the safety to person and property and invalidates manufacturer's warranty on the equipment.
Piping and electrical wiring sho uld be made in a neat manner to make the service compartment look workman like.
• Find out the connection po ints and connection data of the sterilizer
by studying the installation drawings.
• Pay attention to local, state an d national regulations.
the sterilizer.
• Insulate hot pipes, where necessary, to avoid injury.
• Mark pipes and electrical leads.
Install shut-off valves in the supply lines in an easily acces­sible location near the equipment so as to avoid risk areas when using these. Due to the risk of injury an un-accessi­ble area of the service com partment is not a suitable place.
5.2

Electricity

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Before welding on or near-by the sterilizer, the boards of the control system have to be isolated! Disconnect all plug-in connectors from all PCB’s!
The electric components o f the control unit will tole rate supply line voltage variations of ±10%. Greater fluctuations demand that a voltage stabilizer be introduced between the sterilizer automatic fuse and the control equipment. The latter will cause an inductive load on the stabi­lizer this should be well over sized (minimum.5 kW). The frequency deviation may amount to ±1%.
• Check that all electric wire connection screws are tig htened.
Connect the sterilizer to an electric 60 Hz; 3 Ph/ 208 - 480 volts (depending upon pump size) + ground, through a closely situated disconnect.
The stated voltage is for various versions of the sterilizer. Check on the equipment arrangement drawing and the util­ity data sheet for the required electrical connections. Those documents also give information about power and fuse ratings that may be important for choos ing the correct size of cables.
Units equipped with vacuum pumps
Check by manual operation of the direct o n line starter of th e vacuum pump, that the direction of rotation conforms with the arrow on the pump housing.
Running the shaft seal dry will destroy it in a few seconds.
Change any two of th e main supp ly wires on their co nnecti on te rmin al to reverse the direction of rotation.
5.3

Water

Cooling water for heat exchanger
The sterilizer has a pressure gauge connected to the coolin g wat er sup­ply pipe. It is no rmally situated in the service area. The cooling water must not be corrosive, nor must it contain abrasives or scaling particles. The water salt conten t should not ca use scaling as a resu lt of the tem­perature. If the cooling water is to be recirculated, the pressure in the return pipe should be at least 250 kPa (36 psig) lower than in the supply pipe.
Connect the sterilizer via a shut off valve to a cooling water supply
line where the pressure should be a minimum of 350 kPa (50 psig) and a maximum of 600 kPa (87 psig). A non return valve if necessary should be supplied by the customer if not otherwise stated in the con­tract.
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Pump service liquid
TEMPERATURE
Optimal pump operation, for capacity and vacuum depth, is achieved by a water temperature of 60 of capacity and vacuum dep th is acceptable.
PRESSURE
Connect the sterilizer to a supp ly lin e wi th a mini mum pr essure o f 250 kPa (36 psig) and maximum pressure of 600 kPa (87 psig).
HARDNESS
In order to minimize the sterilizer maintenance and service expenses the water hardness should not exceed 4 dH. A water softener is recom­mended where the water is harder than this.
o
F. This temperature can be exceeded, if loss
5.4
Connection
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A gauge is not required but contributes to easier supervision of the installation.
1 Main line 2 Shut-off valve
3 Strainer 4 Non-return valve

Steam

5 Pressure gauge 6 Anti-siphon device
Sterilizers not equipped with a built in steam generator must be con­nected to a central steam supply.
The user is obligated to arrange for safety valves in the steam supply line as directed.
The effectiveness of a steam st eriliz ation is ver y much de pendent on the characteristics of the steam used. Therefore some basic demands should be raised on the quality of steam supplying the sterilizers.
Steam generators based upon evaporation from high pressure hot water should not be used since the steam produced is of inferior quality for sterilization purp oses.
Steam Quality
1. Solid particles such as welding pellets, graphite, rust flakes, sand
etc. must not be present since the steam comes in physical contact with the goods to be sterilized.
2. Liquids, except from steam condensate, must not be present.
5.5
3. Gases will prevent a close contact between the steam and the micro-
organisms and should be minimize d as foll ow s:
· Hydrazine (N2H4), NMT 0.11 mg/kg steam.
· Ammonia (NH3), NMT 5 mg/kg steam.
· Air and/or no n-condensa ble gases, NM T 7 ml per 200 ml cond en­sate, formed by the steam-air/gas mixture.
4. Other chemicals such as softening residuals and similar particulates must not be present in sterilizing steam.
· Salt content of NMT 1 mg/kg steam.
Analysis of condensate
An analysis of the condensate from the steam should provide a gauge of purity. The following should not occur in concentrations exceeding the values given in ppm condensate:.
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Pressure
Evaporation residuals 1.0ppm of which: Silicone as SiO2 0.01 ppm Iron 0.1 ppm Cadmium 0.005 ppm Lead 0.05 ppm Other heavy metals 0.1 ppm Chloride 0.1 ppm Phosphate 0 ppm Recommended pH val ue = 5 - 7
Suitable conductivity < 3 µS/cm (at 68°F) Suitable hardness 0.1 dH
Getinge sterilizers should be supplied with steam, pressure in the range of 36 to 43.5 psig as indicate d by the steril izer pressure gaug e marked “Steam supply”. Consult the installa tion drawing for appropriate information.
5.6
Moisture content
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Permissible pressure fluctuations of NMT ± 1.45 psig.
If the steam supply line pressure exceeds the sterilizer working pressure, the user must install a pressure regulat­ing unit and safety valve with relief pressure and sufficient blow off capacity.
Sterilizers should be supplied with dry saturated steam. The physical state “dry saturated”, is dif ficult to maintain in a pract ical application , and measurement followed by control of the moisture content is an awk­ward procedure.
The following inform ation is b ased upon practical experien ce and wi ll generally result in steam with a satisfactory moisture content. This prac­tice will also prevent superheating, a state of steam which is hazardous in connection with sterilization because i t does not contribute to the humidification necessary f or inactivation of microorganis ms.
Practical arrangements
1. Conn e c t the sterilize r to a liv e st ea m li ne , not to an inadequa te l y drained or inadequately vented “dead leg”. Long branch connec­tions to sterilizers should be avoided.
2. Dimension the piping for a steam velocity of 125ft/sec at a pressure of 36 psig. If several sterilizers are connected to the same pipe, cal­culate with a simultaneity factor of 0.8.
3. The steam supply pipes should slope to a minimum ratio slope of 1/ 8” per foot in the flow direction.
4. Reducing valve(s), should be utili zed in the supply line if the pres­sure is higher than specified in the installation drawing. The steam pressure upstream of the reducing valve should not fluctuate more than 10%. Do not reduce the pressure with a factor smaller than 0.5 in each stage. Use a second reducing valve for greater reduction ratio. Each reducing valve must be followed by a safety valve.
If the steam in the supply pipe is wet, include a water serarator as shown in Figure “A”, just before the reducing valve.
The safety valve exhaus t pi pe sho uld hav e at leas t th e same di men­sion as the valve exhaust connection and must not contain orifices,
5.7
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restrictions or shut off devices. Water pockets formed in the piping, must be drained.
5. There must be no orifices or restrictions placed in horizontal pipes.
6. Fit the last reducing valve, a distance, not more than 20ft. piping away from the sterilizer, but not closer than 13ft. if the maximum reducing ratio of 2:1 is utilized.
If the reducing valve is positioned more than twenty feet from the sterilizer include a water separator, as shown in Figure “A”, just before the sterilizer.
7. The last separator device (see figure below) should not be placed further than 3 feet away from the steri lizer steam intake.
8. No steam consumers other than sterilizers should be connected down-stream of the last reducing valve.
9. Branch pipes should be connected on top of the horizontal main pipe.
10. A connection should be provided between the reducing valve and sterilizer on the steam supply line to ena ble sampling steam for quality check.
11. Because of potential daily use, the shut off valve should be conve­nient to the operator.
12. Insulate steam pipes up to the sterilizer steam intake.
An arrangem ent a ccordin g to the follow ing fig ure no rmally sa tisfie s the demand for dewatering, filtration and supervision facilities when sup­plying a sterilizer with steam from a main steam supply line.
5.8
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1 High-pressure line 8 Vent 2 Labyrinth di ver ter / wa te r
3 Shut-off valve 10 Steam trap 4 Filter 11 Remote-controlled valve 5 Reducing valv e 12 Check valve 6 Safety valve 13 Sterilizer 7 Pressure gauge

Compressed air

The air oil content should be less than 0.02 ppm and maximum permis­sible water content corresponding to the dew point at 50
Less oil content may be required to satisfy quality demands on the final product.
Less water content may be required if compressed air pipes or air equi p­ment is located in non-heated rooms.
separator
9Ball valve
o
F.
Instrument air
The sterilizer is equipped with a pre ssure gauge for instrument air con­nected to the sterilizer.
5.9
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• Connect the sterilizer instrument air supply fitting with a compressed
air source capable of supplying air with a minimum pressure of 80.0 psig and a maximum pressure of 100.0 psig free of oil, water and solid particles as stipulated abov e.
1 Main supply 2 Shut off valve 3 Strainer 4 Pressure gauge
Chamber and door seal air
If the instrument air line is sufficient for the peak air consumption with­out causing a pressure drop below 80.0 psig the chamber air may be connected to the same air supply. A non retur n valve and sterile air fil­ter, if required, should be supplied by the customer unless otherwise stated in the contract.
• Connect the sterilizer chamber air supply fitting, via a shut off valve,
to a compressed air source capable of supplying air with a minimum pressure of 43.5 psig and a maximum pressure of 100.0 psig. The air should be sterile, filtered and free from oil and water as stipulated above.

Exhaust from safety valve

Safety valves with a small relief opening are provided with exhaust pipes leading the blown off steam or air to a safe position in the service area, as defined in ASME Section 8, Div 1. UG - 135.
Safety valves with larger relief open ings are not provided with exhaust pipes at delivery. The reason for this is, that when there is the possibility of a large volume of steam / ai r bei ng ex hauste d, it is advisabl e to have t his pi ped t o a saf e area where no personnal injury cou ld take place. Refer to OSHA or State laws concerning this.
An exhaust pipe system connected to the safety valve:
must be at least the same size as the safety valve
5.10

Drain

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must NOT contain shut -off valves or other throttling devices
must be designed to avoid the forming of water pockets or, if this is
not possible, provided with drain lines.
WARNING! The outlet from the safety valve must be con­nected to a pipe leading the exhaust to a safe position.
Sterilizers equipped with more than one waste water connection should have all piped separat e ly to the floor drain.
Check local regulation s regarding the drain arrangements, ( gas r esid-
uals in the water, tempera ture limits, etc.).
Because most industrial ste rilizers release their pr essure through the autoclave drain, an air/water separator should be installed to prevent water splashing in the service area.
• Run a sloping pipe from the outlet with unreduced bore to the drain
where it should terminate not closer than two pipe diameters (air gap) above the surface leve l of the floor by the wate r trap.
• The discharge pipe from a steam generator should b e fixed at its open
end which should be at least a pipe length of 2ft. away f rom the dis­charge valve.
• Arrange for cooling (below 140
ing the steam generator to comply with regulations and in order to avoid steaming and noise in the room.

Ventilation

The sterilizer ambient temperatur e should be kept at 60 - 95°F.
Functional test prior to use
A functional test prior to use should be carried out according to the ser­vice manual.
o
F) the discharge pipe when empty-
5.11
EXIT MANUAL
OPERATING INSTRUCTION This operating instruction is intended for the daily use of the sterilizer. One copy, together with one copy of the program combination and passwords
are provided to the designated contact person in a sealed envelope. The operating instructions and program combination sheet are to be available for the operator when working at the control panel.
1
6. OPERATING INSTRUCTION
This sterilizer must not be used for processing other mate­rial than stated in the program combination list.
Pathogenic material must not be sterilized in this sterilizer.
Beware of hot surfaces inside th e sterilizer c hamber when door is open!
EXIT MANUAL
Preoperation checks
• Check that valves for cold water, compressed air and steam are open.
• Switch on the power switch.

Sterilizing

• Check that there is sufficient recor ding paper for the entire process
• Load the sterili ze r .
• Place the temperature prob es for the intended cycle in the load.
• Check that the steam supply is at least 270 kPa (40 psig).
• Close the door by pushin g the button ”Close Door”.
• Select the desired cycle and comfirm the parameters as described in
the CONTROL UNIT chapter of this manual.
• Push the ”Start” button.
• On completion of a satisfactory process, the light indicator on the
“Open Door” pushbutton illuminates. Push the ”Open Door” push­button.
• Select immediately new program if the same one should not be used
next time.
6.2

Close down

Unless otherwise prescribed by local rules:
• Switch off the control uni t po wer swi tc h .
• Check and clean the chamber d rain strainer.
• Shut off supplies for cold water, steam and compressed air.

Blowing safety valve

• Press the EMERGENCY STOP button.
• Call for a technicia n.
EXIT MANUAL
6.3
EXIT MANUAL

Program combination

Textiles, plastic and rubber products
PARAMETER
F1
Insitu Filter
F2
Liquids AOP
F3
1. Pre-vac pulses
2. Sterilizing temp
3. Sterilizing time
4. Drying time
PARAMETER
1. Sterilizing temp
2. Sterilizing time
3. Drying time
PARAMETER
1. Sterilizing temp
2. Sterilizing time
3. Fo setpoint
4. Cooling temp
RANGE 1 - 99 105 - 135 0 m - 99 h 0 m - 99 h
RANGE 105 - 135 0 m - 99 h 0 m - 99 h
RANGE 105 - 135 0 m - 99 h 0 - 999.9
o
60 - 95
C
o
C
o
C
o
C
ALLEN BRADLEY
DEFAULT 3
o
C
135 3 m 10 m
DEFAULT
o
C
121.1 5 m 5 m
DEFAULT
o
C
121.6 15 m
999.9
o
C
80
ACTUAL 3
o
135 3 m 10 m
ACTUAL
121.1 5 m 5 m
ACTUAL
121.6 15 m
999.9
o
C
80
C
o
C
o
C
Automatic Leak rate Test
F4
PARAMETER
1. Leak rate
2. Leak time
DEFAULT
0.5psi 1 hour
Liquids must be processed with appropriate liquid program only. Hazardous waste and explosive materials must not be processed in this sterilizer.
RAX014/US-AB
Rev.F
7/97
EXIT MANUAL
7. CONTROL UNIT - ALLEN BRADLEY
The object of the control system is to produce command s and transmit information to the sterilizer componen ts enabli ng for a number of ster­ilization processes to be accompli shed in accordance with a predicted pattern. The command signals are generated by the control unit com­puter program in combination with measurements of the process param­eter values. The latter consist mainly of times, temperatures and pressures.
The operator communicates with the control unit via a control panel. The entire process is controlled by an Allen Bradley SLC 504 micropro­cessor control system.
The Allen Bradley SLC 504 control system is made up of the Control Processing Unit (CPU) and a Panelview504 Operator Interface Panel. This panel contains status indi cator ligh ts and display while servi ng as the operator interface for cy cle selection and cycle parameter inp ut. Visual indication of the process appears as a read-out on the display.
Documentation of programs, system definitions and process data can be made by connecting a pri nter. A host computer can also be connected direct to the control unit CPU.
The computer contains a program section for calibration of temperature and pressure transducers. Correction constants, when known, may be entered manually. Among available test functions there are facilities for activating analog and digital outputs and monitoring analog and digital inputs. The maximum programmable digits are 9999.
The hardware of the steri lizer control system contains the operating panels easily locate in a suitable place. The CPU and po wer pack are placed in a separate electrical enclosure, connected to the operating pan­els.
Some terms of the branch
STERILIZATION means the whole series of treatments to form a pro­cess in order to attain total killing of all viable organisms. This is in con­nection with autoclaves usually made up by air removal, heat treatment and a drying phase.
STERILIZING means the actual killin g part, th e heat treatmen t, of the total process.
Analogous to the two expressions above, STERILIZATION TIME means the durability of the total process from the start until the goods can be unloaded. PROCESS TIME is equal to sterilization time.
7.1
EXIT MANUAL
STERILIZING TIME represents that part of the process on ly during which the programmed STERILIZING TEMPERATURE prevails in the chamber.
PARAMETER in this context means the ELEMENTS WHICH INFLUENCE the sterilization course. Examples of parameters in the sterilization process are temperature, pressure, time, gas concentration, etc. The PARAMETER VALUES may be fixed in the program or oper­ator adjustable.
F
-VALUE is a time defined by the equ ation
0
t
T
k1–
t
()
------------------­k
2
F
10
=
0
0
t = Time in minutes
×
dt
T(t) =
= Constant within the range 0.0 - 150.0 oC. Usually 121.1 oC
k
1
= Constant withi n the range 0.0 - 99.9 oC. Usually 10.0 oC
k
2
The F
Load temperature at time t
. value is based upon the sterilizing time, required for the temper-
0
ature prevailing in each moment, being recalculated to the base temper­ature for steam sterilization, 121.1
The use of F
value is most common in the pharmaceutical field, where
0
often the time control of sterilization processes is based upon this value, thereby utilizing t he heat appl ied du ring heat ing u p and cooli ng down . By this method, heat sensitive products do not need to be exposed to high temperatures for a longer period of time than required in obtaining a sterile result.

Operating panel SLC 504

By means of the SLC 504, the operator selects program, alter parameter values, starts and monitors the processes and receives information about possible errors occurring with the sterilizer.
o
C
7.2
EXIT MANUAL
The SLC 504 control p an el will not allow for su ch programming of the cycle, such as making new processes or altering programs already resi­dent in the CPU.
Display
Front Panel
Rear Panel
The 256 x 128 pixel displa y is the liqu id cryst al type. The back light i s field replaceable to extend the life of the terminal.
The SLC 504 control panel consists of multiple touch keys for operator interface.
Numeric keypad with decimal and underline.
Function keys for F1 through F10 selection.
Scroll arrow keys to move the cursor left or right down
ÏÐ
.
ENTER key
Backspace key
The back of the SLC 504 cont rol panel c ontains tw o I/O Termina l Ports.
.
Í
ÍÎ
and up or
Remote I/O port to connect a remote I/O Network.
RS-232 port al lowing c onnecti on to a R S-232 port of a comp uter for information transfer .
7.3
Push Buttons/Indicator Lights - Load Side
EXIT MANUAL
Emergency Stop/ Abort
Alarm Acknowledge
Control Power ON/OFF
This push button is used to discontinue a cycle. Once depressed, the outputs of the control system will be turned off disabling the sterilizer. At this time, a key must be used to unlock the emergency stop button. To unlock the emergency stop, turn the key. The button will m ove outward to reset. The operator must then acknowl­edge the alarm via the function keys located on the Allen Bradley display.
This push button is pressed to acknowl­edge any alarm prior to continuing or aborting a cycle. This push button is also used to acknowledge that the sterilizer is unloaded after closing the door on the unload side.
This selector switch controls power to the OFF position, all digital outputs are turned off disabling the sterilizer. During normal operation, the switch should be in the ON position.
Open Door This push button is used to open the steril-
izer door after a cycle has ended. When illuminated, it signals to the operator that the door can be opened.
Close Door
This push button is used to close the door. It must be pressed and held the entire time that the door is in motion. The door will reverse to the open position if the button is not held.
7.4
Push Buttons/Indicator Lights - Unload Side
EXIT MANUAL
Emergency Stop/ Abort
Alarm Acknowledge
Open Door
Close Door This push button is used to close the door.
This push button is used to discontinue a cycle. Once depressed, the outputs of the control system will be turned off disabling the sterilizer. At this time, a key must be used to unlock the emergency stop button. To unlock the emergency stop, turn the key. The button will m ove outward to reset. The operator must then acknowl­edge the alarm via the function keys located on the Allen Bradley display.
This push button is pressed to acknowl­edge any alarm prior to continuing or aborting a cycle. This push button is also used to acknowledge that the sterilizer is unloaded after closing the door on the unload side.
This push button is used to open the steril­izer door after a cycle has ended. When illuminated, it signals to the operator that the door can be opened.
It must be pressed and held the entire time that the door is in motion. The door will reverse to the open position if the button is not held.
Cycle In Progress
This indicator light iden tifies the cycle is in progress.
7.5

Passwords

EXIT MANUAL
Six passwords exist in the Allen Bradley and consists of five digits 0000
- 99999. The password sections are: Parameters
Cycle Start
Cycle Time & Date
Service
Calibration
Master Password
Passwords at delivery:
The passwords set in the con trol system is revealed in a special docu ­ment delivered in a sealed envelope together with the sterilizer manuals.

Detailed screen displays

Main Menu
Upon start-up of the sterilizer, the main menu of the display will appear as shown below. Functions such as cycle selection, start cycle, runtime screen, change cycle parameters, alarms, and service information can be accessed through the main menu.
Us the up or down arrows located on the panelview keypad to select the next display frame. Press return to acknowledge and advance to the selected display frame.
7.6
Load Door Main Screen
EXIT MANUAL
This screen allows for the selection of the Validation Password Screen to allow the operation of a cycle from the opposite door. The correct password must be entered for the following displayed on the Unload Door.
Unload Door Main Screen
7.7
EXIT MANUAL
.
7.8
Cycle Selection/Start Cycle
In the Cycle Selection menu screen, select the type of cycle to be run by pressing the appropriate function key (F1, F2, etc.). The type of cycle selected will appear in the highlighted box. Press F5 to start the cycle.
.
EXIT MANUAL
7.9
Cycle Start
EXIT MANUAL
The display will then ask the operator to verify start of the cycle. Press F3 to acknowledge the start of th e cycle. The sterilizer’s door will then be sealed and locked initia ting the cycle.
.
Following the selection of F3, the following confirmation screen will appear:
7.10
Runtime Screen
EXIT MANUAL
The Runtime screen a llo ws th e opera tor to o bserve t he co nd ition s d ur­ing the sterilizer cycle such as temperatur e, pressure, etc. This d isplay is accessed through the main menu via the up or down arrow keys fol­lowed by pressing the return button
.
7.11
Cycle Parameters
EXIT MANUAL
The Change Cycle Parameter d isplay screen is us ed to alter par ameter setpoints of the cycle to be run such as st erilization time and temper a­ture. This display is accessed through the main menu. Use the up or down arrow keys followed by pressing the return key to access this dis­play. A password is req uired to access the Cha nge Parameter display. Press F1 to enter the password. Enter the password using the numeric keys followed by pressi ng the return key.
.
Select the cycle in which the parameters are to be altered. Use the up or down arrow key to select the cycle followed by pressing the return key.
.
7.12
Change Parameter
In the Change Parameter display, the current parameter settings will be displayed. To alter a pa rame t e r, pr e ss th e app ropriate function ke y ( F1, F2, etc.). Enter the parameter value using the numeric keys followed by pressing the return key. Decimal points are not required in en tering the new value. A cycle may be started from this display screen by pressing F5.
Textile Cycle:
.
EXIT MANUAL
Insitu Cycle:
.
7.13
Liquid Cycle:
.
EXIT MANUAL
Leak Test Cycle:
.
7.14
Parameter Password Screen
In the Change Password Screen, the operator can set or change the parameter password. To set or change the parameter password, press F1. Enter the password by using the numbered keys followed by press­ing the return key.
.
EXIT MANUAL
7.15
Alarm Display
EXIT MANUAL
In the event an alarm condition occurs during a cycle, the Alarm display screen will appea r. The type of alarm will be displayed in the high ­lighted box. Any al arm or aborte d cycle must be ackn owledged to the control system. Acknowledge the alarm by pressing F3. The system will then ask the operator to conti nue the cyc le or abort the cycle. Press F3 to abort the present cycle or F5 to continue the present cycle.
Emergency Stop Alarm Screen:
7.16
System Information
The System Information display screen will identify informa tion about the cycle progress.
EXIT MANUAL
7.17
Service Screen
EXIT MANUAL
The Service display screen is used for service and maintenance func­tions such as monitoring control v alue, I/O ch ecks and man ual contr ol of the sterilizers. The service display screen is accessed through the main menu by the use of the up or down arrow keys followed by press­ing the return key. A service password is required to access the service display screens. Press F1 to enter the service password. Enter the pass­word by using the numeric keys followed by pressing the return key.
7.18
Service Screen Passwords
EXIT MANUAL
7.19
Digital Inputs
EXIT MANUAL
In the Digital Input display, the user can observe the system’s digital inputs as they are energized. An illuminated box ind icates that the device is on and providing input to the controller.
.
7.20
Digital Outputs
EXIT MANUAL
In the Digital Outpu t display, the user can manually overrid e devices, such as opening valves, once the device is in the manual mode. For each digital output display, the left-hand column and associated function keys will place the selected dev ice in the manual mode when pressed. The right-hand column and associated function keys will physically turn the devic e on or off when p ressed. A n illumi nated bo x represe nts the device in ON.
.
7.21
EXIT MANUAL
7.22
EXIT MANUAL
.
7.23
EXIT MANUAL
.
7.24
PID Control
EXIT MANUAL
In either the Jacket PID or the Chamber PID display screen, the user can observe the operation of the valve which controls steam to the chamber or jacket. The proportional ga in an d reset valu es used to maint ain tem­perature control can be altered fr om this display. To alter one of the parameters, press the appropriate function key. PRess F3 to alter the PROPORTIONAL GAIN value or F2 to alter the RESET value. Enter the new value using the numerical keys followed by pressing the RETURN key to enter the value.
Jacket PID
Chamber PID
7.25
Alarm and System Messages - Troubleshooting
Note:
All alarms and system messages must be acknowledged to silence the alarm and clear the display. Fatal errors will interru pt the cycle. The cycle will not be interrupted whe n a non-fatal error occurs. Ackn owl­edging the error will not interrupt the cycle. When troubleshooting, ALWAYS refer to the wiring diagram for the unit being serviced. Also see the Input/Output table in the Appendix.
EXIT MANUAL
7.26
Information Text
The following messages are displayed on the display panel. Typically the “CYCLE RESTARTED” and “CYCLE ABORTED” messages will also be printed to the printer
CYCLE ABORT This message will be displayed if, followi ng pushing
Emergency Stop butt on and then restori ng the power, t he operator elects to abort the current cycle by pushing the OPEN DOOR button. S ee Emergency Stop below.
SEALING DOOR #1 This message will be d isplayed on the display panel once
all start conditions are satisfied and the start button is pressed. When Door #1 is fully sealed, the message is no longer displayed.
EXIT MANUAL
SEALING DOOR #2 This message will be displayed on ce all start conditions
are satisfied and the Start butt on is pressed. When Door #2 is fully sealed, the message is no longer display ed.
UNSEALING DOOR #1 During the Cycle End phase, this me ssa ge w ill be dis-
played as the Load Door is unsealed.
UNSEALING DOOR #2 During the Cycle End phase, this me ssa ge w ill be dis-
played as the Unload Door is unsealed.
CYCLE COMPLETE During the Cycle End phase, this message will be dis-
played after the chamber has returned to atmospheri c pressure.
CYCLE RESTARTED This message will be displa yed if, foll owing push ing the
Emergency Stop butt on and then restori ng the power, t he operator elects to continue the cur rent cycle by pushing the CONTINUE button on the Alarm Display. See Emer­gency Stop below.
UNLOADING This message will be displayed du ring the Cycle End
phase while the unload door is opened.
PRESS OPEN - LOAD This message will be displayed du ring the Cycle End
phase once the unload door has been closed again follow­ing unloading the Load Door may be opened.
OPEN DOOR This message will be displayed du ring the Cycle End
phase once the Load Door seal has been pulled and the door is ready to be opened.
7.27
Alarm List

EMERGENCY STOP

Message Display:
EMERGENCY STOP
Operator Acknowledgement:
Press the Acknowledge Alarm button to silence the alarm. The Acknowledge Alarm lamp will stop flashing, but remain illuminated. All outputs remain off.
EXIT MANUAL
The Emergency Stop button must be reset by inserting the key and twisting in the clockwise direction. The cycle may be aborted or contin­ued by pressing the appropriate button area of the touch screen display. When a cycle is abor ted, the sterilizer will advance to the post condi ­tioning phase of the cycle allowing the sterilizer to advance to a safe condition. When a cycle is continued, the process will return to the con­dition at the point when the alarm was activated and continue the cycle.

CHAMBER TEMPERATURE SENSOR ERROR

Alarm Condition:
The probe is out of the allowable range of -5.0
Message Display:
CHAMBER TEMP OUT OF RANGE
This alarm will turn off all digital outputs except for the alarm and Acknowledge Alarm lamp. The alarm will sound and the Acknowledge Alarm lamp will flash. It will also activate the alarm screen of the Pan­elView 900. The alarm shall be printed.
Operator Acknowledge:
o
C to 150oC
Press the Acknowledge Alarm button to silence the alarm. The Acknowledge Alarm l amp will sto p flashi ng a nd r emain illu min ated i f the alarm condition is still present. All outputs remain off.
The alarm must be cleared by repair or replacement of the defective component. When the sensor returns to within the allowable range, the process will return to the co ndition when the alarm was activ ated. The Alarm Acknowledge lamp will extinguish.
7.28
PRESSURE SENSOR ERROR
Alarm Condition:
The sensor is out of the allowable range of 0 PSIA to 50.0 PSIA.
Message Display:
CHAMBER PRESSURE OUT OF RANGE
This alarm will turn off all digital outputs except for the alarm and Acknowledge Alarm lamp. The alarm will sound and the Acknowledge Alarm lamp will flash. It will also activate the alarm screen of the Pan­elView 900. The alarm shall be printed.
Operator Acknowledge:
Press the Acknowledge Alarm button to silence the alarm. The Acknowledge Alarm l amp will sto p flashi ng a nd r emain illu min ated i f the alarm condition is still present. All outputs remain off.
The alarm must be cleared by repair or replacement of the defective component. When the sensor returns to within the allowable range, the process will return to the co ndition when the alarm was activ ated. The Alarm Acknowledge lamp will extinguish.
EXIT MANUAL
INSITU FILTER TEMPERATURE SENSOR ERROR
Alarm Condition:
The probe is out of the allowable range of -5.0
Message Display:
INSITU FILTER TEMP OUT OF RANGE
This alarm will turn off all digital outputs except for the alarm and Acknowledge Alarm lamp. The alarm will sound and the Acknowledge Alarm lamp will flash. It will also activate the alarm screen of the Pan­elView 900. The alarm shall be printed.
Operator Acknowledge:
Press the Acknowledge Alarm button to silence the alarm. The Acknowledge Alarm l amp will sto p flashi ng a nd r emain illu min ated i f the alarm condition is still present. All outputs remain off.
The alarm must be cleared by repair or replacement of the defective component. When the sensor returns to within the allowable range, the process will return to the co ndition when the alarm was activ ated. The Alarm Acknowledge lamp will extinguish.
o
C to 150oC
7.29

LOAD TEMPERATURE SENSOR ERROR

Alarm Condition:
The probe is out of the allowable range of -5.0
Message Display:
LOAD TEMP OUT OF RANGE
This alarm will turn off all digital outputs except for the alarm and Acknowledge Alarm lamp. The alarm will sound and the Acknowledge Alarm lamp will flash. It will also activate the alarm screen of the Pan­elView 900. The alarm shall be printed.
Operator Acknowledge:
Press the Acknowledge Alarm button to silence the alarm. The Acknowledge Alarm l amp will sto p flashi ng a nd r emain illu min ated i f the alarm condition is still present. All outputs remain off.
The alarm must be cleared by repair or replacement of the defective component. When the sensor returns to within the allowable range, the process will return to the co ndition when the alarm was activ ated. The Alarm Acknowledge lamp will extinguish.
o
C to 150oC
EXIT MANUAL

DOORS NOT CLOSED

Alarm Condition:
The door limit switch input is on.
Message Display:
DOORS NOT CLOSED
This alarm will turn off all digital outputs except for the alarm and Acknowledge Alarm lamp. The alarm will sound and the Acknowledge Alarm lamp will flash. It will also activate the alarm screen of the Pan­elView 900. The alarm shall be printed.
Operator Acknowledge:
Press the Acknowledge Alarm button to silence the alarm. The Acknowledge Alarm l amp will sto p flashi ng a nd r emain illu min ated i f the alarm condition is still present. All outputs remain off.
The alarm must be cleared by repair or replacement of the defective component. When the repai r is complete, the process wi ll return to the condition when the alarm was activated. The Alarm Acknowledge lamp will extinguish.
7.30

DOORS NOT SEALED

Alarm Condition:
The door seal pressure switch reads low (off) for mor e than 2 minutes.
Message Display:
DOORS NOT SEALED
The alarm will sound and the Acknowledge Alarm lamp will flash. It will also activate the alarm screen of the PanelView 900. The alarm shall be printed.
Operator Acknowledge:
Press the Acknowledge Alarm button to silence the alarm. The Acknowledge Alarm l amp will sto p flashi ng a nd r emain illu min ated i f the alarm condition is still present.
Check that required steam pressure is being supplied to the unit. The alarm must be cleared by repair or replacement of the defective compo­nent or providing required steam pressure. When the repair is complete, the process will return to the condition when the alarm was activated. The Alarm Acknowledge lamp will extinguish.
EXIT MANUAL

DOORS 1 SEAL LEAK

Alarm Condition:
The door 1 seal flow switch reads high for more that 20 seconds.
Message Display:
DOORS 1 SEAL LEAK
The alarm will sound and the Acknowledge Alarm lamp will flash. It will also activate the alarm screen of the PanelView 900. The alarm shall be printed.
Operator Acknowledge:
Press the Acknowledge Alarm button to silence the alarm. The Acknowledge Alarm l amp will sto p flashi ng a nd r emain illu min ated i f the alarm condition is still present.
Check that required steam pressure is being supplied to the unit. The alarm must be cleared by repair or replacement of the defective compo­nent or providing required steam pressure. When the repair is complete, the process will return to the condition when the alarm was activated. The Alarm Acknowledge lamp will extinguish.
7.31

DOORS 2 SEAL LEAK

Alarm Condition:
The door 2 seal flow switch reads high for more that 20 seconds.
Message Display:
DOORS 2 SEAL LEAK
The alarm will sound and the Acknowledge Alarm lamp will flash. It will also activate the alarm screen of the PanelView 900. The alarm shall be printed.
Operator Acknowledge:
Press the Acknowledge Alarm button to silence the alarm. The Acknowledge Alarm l amp will sto p flashi ng a nd r emain illu min ated i f the alarm condition is still present.
Check that required steam pressure is being supplied to the unit. The alarm must be cleared by repair or replacement of the defective compo­nent or providing required steam pressure. When the repair is complete, the process will return to the condition when the alarm was activated. The Alarm Acknowledge lamp will extinguish.
EXIT MANUAL

POWER FAILURE

Alarm Condition:
The processor detect there has been a loss of power.
Message Display:
POWER FAILURE
The alarm will sound and the Acknowledge Alarm lamp will flash. It will also activate the alarm screen of the PanelView 900. The alarm shall be printed.
Operator Acknowledge:
Press the Acknowledge Alarm button to silence the alarm. The Acknowledge Ala rm lamp wi ll ex ti ng ui sh.
7.32

HIGH CHAMBER PRESSURE

Alarm Condition:
The chamber pressure transducer reads greater than 60 PSIA
Message Display:
HIGH CHAMBER PRESSURE
This alarm will turn off all digital outputs except for the alarm and Acknowledge Alarm lamp. The alarm will sound and the Acknowledge Alarm lamp will flash. It will also activate the alarm screen of the Pan­elView 900. The alarm shall be printed.
Operator Acknowledge:
Press the Acknowledge Alarm button to silence the alarm. The Acknowledge Alarm l amp will sto p flashi ng a nd r emain illu min ated i f the alarm condition is still present. All outputs remain off.
The alarm must be cleared by repair or replacement of the defective component. When the sensor returns to within the allowable range, the process will return to the co ndition when the alarm was activ ated. The Alarm Acknowledge lamp will extinguish.
EXIT MANUAL

VACUUM SYSTEM TIMEOUT

Alarm Condition:
The chamber pressure did not achiev e the necessary vacuum level within 60 minutes.
Message Display:
VACUUM SYSTEM TIMEOUT
The alarm will sound and the Acknowledge Alarm lamp will flash. It will also activate the alarm screen of the PanelView 900. The alarm shall be printed.
Operator Acknowledge:
Press the Acknowledge Alarm button to silence the alarm. The Acknowledge Alarm l amp will sto p flashi ng a nd r emain illu min ated i f the alarm condition is still present.
The alarm must be cleared by repair or replacement of the defective component. When the sensor returns to within the allowable range, the process will return to the co ndition when the alarm was activ ated. The Alarm Acknowledge lamp will extinguish.
7.33

LOW STERILIZATION TEMPERATURE

Alarm Condition:
The controlling temperature device reads less than one degree C
o
(1.0
C) than the set sterilization temperature for more than 10 seconds.
Message Display:
LOW STERILIZATION TEMPERATURE
The alarm will sound and the Acknowledge Alarm lamp will flash. It will also activate the alarm screen of the PanelView 900. The alarm shall be printed.
The sterilization timer is reset t o ze r o (0:00) minutes and t he ti mer will not restart until the temperature is regained.
Operator Acknowledge:
Press the Acknowledge Alarm button to silence the alarm. The Acknowledge Alarm l amp will sto p flashi ng a nd r emain illu min ated i f the alarm condition is still present.
EXIT MANUAL
The alarm will clear when the sensor returns to the set sterilization tem­perature. The Alarm Acknowledge lamp will extinguish.

HIGH STERILIZATION TEMPERATURE

Alarm Condition:
The controlling temperature device reads more than two degree C
o
(2.0
C) than the set sterilization temperat ure for more than 2 minutes.
Message Display:
HIGH STERILIZATION TEMPERATURE
The alarm will sound and the Acknowledge Alarm lamp will flash. It will also activate the alarm screen of the PanelView 900. The alarm shall be printed.
Operator Acknowledge:
Press the Acknowledge Alarm button to silence the alarm. The Acknowledge Alarm l amp will sto p flashi ng a nd r emain illu min ated i f the alarm condition is still present.
The alarm will clear when the sensor return s to less than two degrees above the set sterilization tempera ture. The Alarm Ackno wledge lamp will extinguish.
7.34

HIGH WATER LEVEL IN DRAIN

Alarm Condition:
The drain high water level switch (LS10) is on for more than 30 sec­onds
Message Display:
HIGH WATER
The fast exhaust valve shall open to clear the water from the drain. When the switch detects no water in the drain, the fast exhaust valve will close.
The alarm will sound and the Acknowledge Alarm lamp will fla sh. It will also activate the alarm screen of the PanelView 900. The alarm shall be printed.
Operator Acknowledge:
Press the Acknowledge Alarm button to silence the alarm. The Acknowledge Alarm l amp will sto p flashi ng a nd r emain illu min ated i f the alarm condition is still present.
EXIT MANUAL
The alarm will clear when the switch detects no water in the drain. The Alarm Acknowledge lamp will extinguish.

LEAK TEST FAILURE

Alarm Condition:
The chamber pressure rises above th e allowable leak amount. The leak amount set point is dete rmi ned by ad ding th e chamber pre ssure at the start of the leak test to the allow able leak amount.
Message Display:
LEAK TEST FAILURE
The alarm will sound and the Acknowledge Alarm lamp will flash. It will also activate the alarm screen of the PanelView 900. The alarm shall be printed and the process will automatically advance to the air admission phase to end the cycle.
Operator Acknowledge:
Press the Acknowledge Alarm button to silence the alarm. Determine the cause of the lead and run another lead test cycle.
7.35

INPUT/OUTPUT LIST

EXIT MANUAL
NAME DESIGNATION
DOOR 1 NOT FULL OPEN LS1A I:1/0
DOOR 1 NOT FULL CLOSED LS1B I:1/1
DOOR 1 SAFETY SWITCH OK PS11A I:1/2
DOOR 1 SEALED PS1 I:1/3
DOOR 2 NOT FULL OPEN LS2A I:1/4
DOOR 2 NOT FULL CLOSED LS2B I:1/5
DOOR 2 SAFETY SWITCH OK PS11B I:1/6
DOOR 2 SEALED PS2 I:1/6
CHAMBER PRESSURE SWITCH PS6 I:1/7
RUPTURE DISK FAILURE PS4 I:1/8
EMERGENCY STOP PB4D1 I:1/10
HIGH DRAIN WATER LEVEL LT1 I:1/11
CONDENSER TEMP HIGH TS1 I:1/12
VACUUM PUMP TRIPPED MS3D2 I:1/13
MEMORY LOCATION
120VAC POWER SUPPLY OK N/A I:1/14
OPEN DOOR PB200 I:2/0
CLOSE DOOR PS201 I:2/1
OPEN DOOR 2 PB202 I:2/2
CLOSE DOOR 2 PB203 I:2/3
ALARM ACKNOWLEDGE PB204 I:2/4
7.36

Technical data

EXIT MANUAL
7.37
EXIT MANUAL
7.38
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