Rodwell GEMINI-MP25 with SmartCard User manual

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Operators Manual
GEMINI - MP25
with SmartCard
Serial number 2140
Rodwell Scientific Instruments,
Bentalls, Basildon, Essex. England.
Tel: + 44 (0) 1268 286646
Fax: [phone]
Manual issue 14-12-10

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CONTENTS
SECTION
INTRODUCTION---------------------------------------------------- 1
INSTALLATION ---------------------------------------------------- 2
MACHINE OPERATION &
MP25 CONTROLS AND INDICATORS----------------------- 3
NORMAL OPERATION PROCEDURE QUICK GUIDE -- 4
BASIC FAULT FINDING----------------------------------------- 5
ROUTINE MAINTENANCE-------------------------------------- 6
TECHNICAL INFORMATION------------------------------------ 7
RISK ASSESSMENT AND SAFETY----------------------------- 8
USER REPONSIBILITES------------------------------------------- 9
A GUIDE TO THE PLANNING AND IMPLEMENTATION
OF YOUR HEALTH AND SAFETY CONTROL
MEASURES ---------------------------------------------------------- 10
DISPOSAL – CARING FOR THE ENVIRONMENT -------- 11
DISCLAIMER-------------------------------------------------------- 12
RECOMENDED SPARE PARTS LIST -------------------------- 13
SERVICE RECORD ------------------------------------------------ 14
APPENDIX 1 HSE GUIDANCE NOTE-------------------------- 15
This manual should be read carefully before any attempt is made to use this autoclave

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SECTION ONE
INTRODUCTION
The Rodwell ‘GEMINI’ Comprises two 125 or 158 litre horizontal loading autoclaves stack
mounted within a common frame. Loading heights are 535 mm and 1275 mm above floor
level for the lower and upper chamber respectively. Each autoclave is provided with
independent services connections and operational controls except that the electrical main feed
is via a common isolator. The controls are simple to use and the instrumentation provides a
clear indication of cycle progress. The Rodwell ‘GEMINI’ meets all the current U.K. &
E.E.C. safety requirements, safety devices include prevention of cycle start if the doors is not
fully closed, low voltage control circuitry, door security when the chamber is pressurised or
the temperature of the load is greater than 80˚C and a means of breaking the pressure seal
with the door restrained. The development of the Rodwell ‘GEMINI’ has resulted in a unit
that is both easy to use and service.
SAFETY NOTE: We recommend that a copy of the Health and Safety Executive
Guidance Note PM 73 (UK) or other similar document relevant to the country of use be
read carefully and implemented before the autoclave is put into service.
HANDOVER OF YOUR NEW MACHINE
Once your machine has been installed and commissioned by the installation company you
must be trained in the correct and safe operation of the machine. The installer should explain
fully how to set up and use the machine and ensure that you are fully conversant with all its
features, the position of water inlet stop cocks and the electrical isolator. He should also
provide you with certificates confirming the installation and calibration process has been
properly carried out. (This could be an IQ/OQ protocol document or similar alternative
approved documentation.)

SECTION TWO
INSTALLATION AND SET-UP PROCEDURES
This information is intended as a brief installation instruction. This machine must only be
installed and set up by qualified personnel. Additional installation information is included in
the Engineers manual that complements this manual
POSITIONING THE MACHINE
Position the ‘GEMINI’ on a level floor with sufficient area behind and at the sides of the unit
to give access to the pipe connections and to allow removal of side panels, where applicable
for service access. Also ensure that there is easy access to the mains isolator
Adjust the levelling bolts and lock to prevent the unit moving, access to the bolts is obtained
by removing the lower side panels
Ensure that the chamber drain valve is shut tight.
ELECTRICAL SUPPLY
The autoclave is supplied with heating elements and is designed to operate from a 415V. 3ph
50/60hz 30amp supply. The electrical supply should be from an R.C.D isolator and connects
to rotary isolator on the autoclave.
Electrical work on this autoclave should only be carried out by a competent electrician.
WATER SUPPLY
In hard water areas, the supply should be treated to avoid chamber, element and pipe scaling.
Distilled water, water softening units that use salts, reverse osmosis systems or de-ionised
water supplies, are not recommended. (A water treatment device can be supplied and fitted
by Rodwell Scientific Instruments). Sodium Chloride within the water supply should not
exceed a level greater than 30 parts per million. Failure to comply may result in damage to
the autoclave and the invalidation of any warranty. (For further information on water
quality, please contact your local Water Authority.)
Note: If difficulty of water detection is experienced due to water conductivity, a float switch
unit may be required. (This item is a chargeable optional extra).
WASTE CONNECTION
All drain pipes within the machine plumb to a common waste port. This must be connected
directly to a suitable drain or into a floor standing container. The discharge temperatures from
the machine can be as high as 140ºC so the pipe used and any existing drainage system must
be capable of withstanding this temperature. A suitable air break should be provided to
prevent pressurisation or vacuum. All pipe work must be arranged with a continuous fall to
drain.
All drainage pipe work must be of a suitable material to accept temperatures of 140ºC.

If condense collector vessel is used then this is not suitable for Instrument cycles or extended
time Free Steaming cycles. A portable condense collector should always be positioned in a
safe place. As an option an autoclave mounted fan cooled condense outlet can be supplied.
INITIAL CHECK OPERATION PROCEDURE
Before switching on power, check that the chamber drain valve is shut. This is reached
after removal of the side panel.
Switch on mains power.
Check that the controller lights up and displays the appropriate start up messages.
Check that the time and date are correct.
Most machine parameters will have been set to suit the machine prior to despatch,
however you may need to set the Free steam and Instrument options to suit your customers
requirements. For further details on the use of and setting machine parameters refer to the
engineers manual
Press the door open button to release the door (Insertion of an engineers card will allow
the door to open under any circumstances and can be used for testing purposes.)
Unscrew the door bolts. (note: do not force bolts open, only use door open button).
Insure that any packing materials are removed from inside the autoclave chamber.
Fill the chamber with water until display stops displaying ‘Low water’ message
Close the door and tighten the bolt (tip of bolt must register on a safety switch located
behind the bolt and which is set to prevent operation-Listen for a beep from the machine
then tighten a further quarter turn).
Check that door is closed securely
Set the time to 3 minutes and the temperature to 121ºC, all other program options to off
Press the start button.
The machine should run through a cycle
Check constantly for any leaks of steam or water
At the end of the sterilising period the chamber will start to cool
When temperature falls to 80ºC ‘Cycle complete’ will be displayed.
OPEN THE AUTOCLAVE using the open door button as described above
Perform a pressure relief valve test
Check constantly for any leaks of steam or water
If required perform independent temperature calibration as described in the maintenance
section
Allow the machine to cool
Complete customer acceptance documents e.g. IQ/OQ Protocol (available on request)
OPEN THE AUTOCLAVE
THE AUTOCLAVE IS NOW READY FOR USE.
SAFETY NOTE
Operators must wear a visor, heat protective gauntlets, a laboratory coat with sleeves, suitable
footwear and a heavy apron before opening the door or unloading the autoclave.

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SECTION THREE
MACHINE OPERATION
Operating Instructions
When the System is first switched on the display will show the welcome message. This
message also contains the current time and date, check that it is correct.
After about ten seconds the welcome message will be replaced by the current system status on
the top line with the chamber and load temperatures below this, some machines will also
display the pressure. The next two lines display the condition of the machine for example
‘door open’.
The lower lines display the current program number, sterilise temperature and period.
If the power was interrupted during a program cycle then if it is possible the machine will
continue with the program, if this is not possible, for example, because the temperature has
dropped too low during the sterilise period then the machine will lock out with an error.
While the machine is in the normal standby mode the top line shows Select prog. and the
key operations are as follows:
The Up and Down buttons (3 & 4) and double up and down buttons (1 & 2) allow selection of
the preset program numbers. When pressed the next program number will be selected and the
parameters displayed, see below for further details on this. The enter button (5) returns you
to the Select Prog screen.

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Operating the machine
The machine should be showing the Select prog screen. If the door is not open press the
door open button to release the door. If it is safe to open the door then the door open indicator
will light and the display shows door is released. Undo the top door bolt first then the
bottom bolt and open the door.
DO NOT ATTEMPT TO OPEN THE DOOR UNTIL THE END OF THE CYCLE.
DO NOT FORCE THE DOOR OR ATTEMPT TO TURN THE BOLTS UNTIL THE
OPEN DOOR INDICATOR IS ILLUMINATED
Remember that the chamber temperature cools faster than the load temperature.
If there is any doubt that the load temperature within the autoclave is not below 80 ºC, DO
NOT OPEN, switch off at the mains and allow the autoclave to cool for at least 24 hours.
Check that the water level is correct, if the display is showing ‘Low water’ then pour water
into the chamber until the message clears.
Place the load to be sterilised inside the machine.
Place the load probe into the centre of the load, into the largest flask or use a simulation flask,
if the load probe is not required place safely out of the way so that it will not get trapped in
the door.
Close the door and secure the bolt. A short beep will be heard as the bolt reaches its limit,
after the beep is heard turn the screw a further quarter turn to ensure the door is secure.
From the Select prog screen choose the required program number by pressing the up or
down buttons, the program details will be displayed or will be blank if a program number has
not been set up. If the machine has the option for Instrument programs (Where the chamber is
vented as soon as the sterilise period is complete to speed the cooling process) then when the
program number reaches 1 or 20 the screen changes to allow selection of these by pressing
the ‘Select instruments’ key (5) press this key twice to choose an instrument cycle and then
press either the up or down keys to choose the required Instrument program. The display will
return to the Select prog menu after a short while or pressing the enter key returns directly
to the Select prog screen (Note that the machine can be started while displaying the
Program parameters.)
If the card operation is enabled then cards can be programmed to allow selection of only
certain programs, this can increase the speed of choosing the required program as only the
program numbers available will be displayed, to use this option insert your operator card
before selecting the required program number.
If the program options required have not previously been set then see the section regarding
program set up.
When the required program is displayed push the start button, if the smart card option is in
use you will need to insert a valid card before the machine will start.
If all is correct the display indicates Heating and the selected program number, temperature
and time.
If you wish to delay the program start until later then do not press start but see the section
below regarding delayed start.

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If any other messages appear then press the door open button and carry out the required
operation before pushing the start button again.
Pressing the door open or the stop button will stop the process cycle until the temperature
reaches 80C. Once the temperature reaches this figure the process cannot be stopped other
than by use of the stop button.
The machine will work through the various stages of sterilising, displaying appropriate
information on the screen.
Cycle complete
Once the cycle is completed and the machine has cooled to below 80C it will display
Complete and the sounder will beep every minute. If the cycle completed without any
problems the machine will display Load is sterile, but if any problems occurred the message
will show Load not sterile. If the load is not sterile take any necessary precautions to avoid
contamination.
Press the door open button to release the door. The door light will come on and the display
will show door is released and then Door is unlocked If the display shows door lock
jammed then turn the top bolt slightly clockwise or anticlockwise to release the bolt, now
push the door open button again. If the display shows pressure locked then move the
bottom bolt slightly clockwise or anticlockwise to release the pressure lock.
Once the display indicates door is released undo the bolt and open the door.
Note that the display returns to the Select prog when the door open is pushed, if you do not
wish to remove the load at this time but want to stop the sounder operating it is also possible
to push the stop button to return the unit to Select prog Mode without releasing the door
Remove the load.
The machine is now ready for further use.
Lockout
If during the sterilising process the system should generate a fault the machine will go into
Lockout mode. The screen will indicate what caused the problem and the sounder will beep
every minute until the condition is reset. The sterilising cycle will be aborted and the
machine cooled down. Once the machine has cooled and the condition reset it will be
possible to open appropriate door but consider any health risks involved as the load may not
have been correctly sterilised. If the machine consistently locks out then consult your service
agent as there may be a problem with the machine
There are two other buttons on the control panel
Delayed start
If you wish to make use of cheap rate electricity supplies or to delay the start of sterilising so
that the process is completed for the morning, a delayed start function is incorporated. Load
the machine as described above, close the door and select the required program. Do not press
start.
Press the delayed start button. The indicator will light and the screen will display the start
time with the hours flashing. Press the Increase or decrease buttons to set the hours to the
time that you wish the machine to start. (Use 24 hour format.) Press the right shift button to
move to the minutes and set as required.
Ensure that the correct program has been selected then press start.

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The machine will go through an automatic test process and if it is fitted with autofill, will fill
with water. Provided all is correct the machine will display the current time and the message
'Waiting for start'. The machine will start when the preset time is reached.
If the delayed start is pressed accidentally, press it again to turn the function off.
Note
The delayed start time is not part of the program and has to be entered whenever required.
Standby
This button only functions on some machines. To speed up the heating process it is possible
for the machine to maintain the water at a preset temperature, in the case of in chamber
heated machines the water will be maintained at 40C, this function can be turned on or off for
each individual program so that sensitive loads will not be effected by prolonged heat
exposure. The standby button allows manual override of this function. If the Standby
indicator is alight then the water will be maintained at this temperature.
Program set up
Any of the 25 programs can be changed to suit your specific needs. If the Smart card
function has been enabled then you will require a card that has valid access to the program
you wish to change (see section regarding Smart cards for further details).
Program changes must be carried out while the machine is in standby (Displaying Select
prog.) Any changes to a program will be automatically saved when they are changed,
changes made at the slave end will be passed back to the master end when the program is
started. When setting times they are displayed in minutes except for the sterilise time which
is in hours and minutes, temperature is always in degrees centigrade. Note that some
functions described may not operate on your machine; if they are disabled then you will not
be able to select them.
To make changes to the program select the required program number using the up and down
keys then press the Enter key (5) to return to the Select prog screen now press the Options
key (5) to display the options menu with the arrow alongside the ‘change program’ function,
press the Select key (5) again to display the Program settings function, the current ‘free steam
temperature’ will be displayed, use the buttons marked select (1 & 2) to scroll through all the
different program options available and use the adjust keys (3 & 4) to change the set value, if
either key is held down the value will start to index rapidly. Note that some of the items
listed may not be available on your machine and will not therefore be displayed.
If no keys are pressed for a short while the display will return to the ‘Select prog’ screen,
parameters are as follows:
Free steam time: Controls the duration of free steaming, the maximum time is 60 minutes
NOTE Extended free steam periods could result in a low water lock out.
Ramp up time: For sensitive loads it is possible to limit the rate of temperature rise from the
free steam temperature to the Sterilise temperature. Set the time in minutes that you require
the system to take to heat up or set to zero to enable the fastest rate of heating. Note that the
machine cannot heat instantly, setting a time that is equal to or less than the maximum rate
that the machine can heat up will have the same effect as setting to zero (ie if it takes 10

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minutes for the machine to heat up then there is no point in selecting values below 10
minutes).
Sterilise time: Set the required sterilise time in hours and minutes
Sterilise temperature: Set the required temperature
Ramp down time: This operates in a similar manner to the Ramp up time allowing the
machine to cool sensitive loads slowly. Set the period of time that you wish the load to take to
cool down. Note that if a time is set that is shorter than the minimum time the machine can
take to cool the load then the setting will have no effect.
Stay warm: Set the temperature that you wish to hold the load at, set Zero to turn stay warm
off.
Load probe: Where the temperature of the load is to be monitored turn Load on. As the
machine heats up it will wait until the load is at the sterilising temperature before the sterilise
time is started. If switched off the sterilising time starts as soon as the chamber reaches
temperature.
Auto repeat: If set to on the machine will repeat the sterilise cycle until stopped by an
operator. This function is useful for life cycle tests of products. After a cycle is completed
there will be a five minute delay before the process repeats. To end the auto repeat function,
press the door open button at any stage of the cycle. The auto repeat message will clear from
the display and the machine will stop once the current cycle is completed. The emergency
stop button will cause the machine to abort the current cycle and to immediately start cooling.
Standby: If set to on the water temperature will be maintained at a preset temperature to speed
up the heating of the program. Set to off if the machine will be left unused for a prolonged
period (To conserve energy) or, if the load is sensitive to prolonged heat exposure.
Emergency stop:
If at any time the machine develops a fault or the cycle has to be aborted for any reason the
Stop button will abort the cycle and immediately start cooling. The display will show
Lockout mode and Emergency stop. Once the machine has cooled the lockout condition
can be reset by pressing the reset key (5) and selecting reset lockout from the menu options as
described below. Normally it is best to allow the emergency stop to cool the machine as this
be the safest condition however in some circumstances the emergency stop can be pressed a
second time, this will shut the control off completely leaving the chamber sealed and possibly
under pressure.
Options menu:
This menu can be reached by pressing the ‘Options’ button on the Select prog screen. The
up and down buttons (1 & 2 or 3 & 4) are used to scroll through these options, the cursor on
the left indicating the item. Press enter (5) to select an item, options are as below, note that if
no buttons are pressed for a short while the display will revert to the normal screen and any
changes will not be saved. The Done (Enter) key must be pressed to store any changes made.
Change program: Use this option to change the parameters for the specified program number
(See above)

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Set sounder Volume: Press the up and down buttons to set the required volume level for the
sounder and press enter to save this and return to the menu. Note that the volume control
effects only the beep when the buttons are pressed and the cycle complete alert, if the
machine develops a fault the alarm will be at a louder level.
Set Time and date: The time and date are displayed when the unit is first switched on and also
appears on the printed reports and USB logs. The displayed time and date does not affect the
operation of the machine, except when using delayed start. Press the select button to adjust
this. The time and date will be displayed, use the Double up and down buttons to step through
the hours, minutes etc and use the single up and down buttons to adjust the value. When
correct press enter to store the new value. (Note that the time and date must be set at both
ends of the machine)
Engineer setup: This option is for setting up the machine configuration and is for service
engineers only, see the engineers technical manual for further information
Reset lockout: Select this option to clear a fault condition and reset the machine, this will be
required if the machine fails to complete a cycle for some reason (e.g. insufficient water or a
power failure) In some cases you may be asked for a code to perform a reset, this occurs for
example when the timed service period has expired. In this instance if you press enter
without entering the code the machine will reset the alarm and allow you to continue using it
but the alarm will return whenever another cycle is complete. Contact your service agent to
have the machine inspected, Note the serial number and reference on the screen as you will
be asked for these by the service agent. If the door has to be opened after a fault has occurred
take any necessary precautions as the load my not be sterile. NOTE you will not be able to
reset a lockout condition until the temperature has fallen below 80ºC
USB Memory: This option will show if the memory stick is present. It will display the
amount of available memory, as the amount of memory required for each program log is quite
small any capacity greater than 64Kb is displayed as >64Kb if the display shows less than this
amount then it is advisable to remove some older logs from the memory stick of obtain a new
one.
There are two additional sub options, Save program data and Restore program data. These
options allow the program data to be saved to the memory stick so that it can be easily
restored if need be and viewed/ modified using the Memory stick logger program that is
supplied with the machine. A suitable memory stick must be fitted to the controller before
these options can be used. Select Save program data and press enter to copy the 25 operating
programs to the memory stick. Once the operation is completed the display will return to the
normal display. To restore the programs or to update them with modified programs select the
Load program data. Note that using the memory stick logger software it is also possible to
give the programs names that will assist operators in choosing the right program to suit their
requirements.
System info: This screen displays the machine serial number, reference and Software version
number, you may be asked for this information when requesting a service. Also displayed is
the cycle count and date, when the count reaches zero or the date reaches that displayed here
the machine will request servicing and will go into a lockout condition at the end of every
cycle. The condition can be reset temporarily using the reset lockout function but the
machine should be serviced as soon as possible. Operating the machine beyond the
recommended service intervals can be dangerous and contravenes health and safety
regulations

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Exit options: Use this option to return to the Select prog screen.
Using smart cards:
The option to use smart cards can provide better control and monitoring of the machine. Each
operator can be issued with a card and if a printer or USB data logger is attached to the
machine this will record the operator number so batches can be traced to an operator. Also
cards can provide restricted access to the machine functions allowing different operators to
have control of different programs. It is also possible to restrict the access to program change
options thereby preventing unauthorised adjustments to the different program parameters. If
the smart card function has been switched off or you require specific card functions contact
Rodwell Scientific or your machine supplier for further details.
USB Memory stick Logger
The memory stick logger is designed to log every cycle that the MP25 performs. The log will
start automatically when the cycle is started and will stop when the cycle completes. Using
the supplied software installed on a PC the recorded data can be archived and viewed as a
graph or as program steps.
In order to operate, the memory stick must be inserted into the USB socket on the control
panel. Do not remove the memory stick while a cycle is in progress, as the system cannot
then log the cycle and data may be corrupted. Once a cycle has been completed the memory
stick can be removed and plugged into a PC.
If you try to start a cycle while the memory stick is removed, or not ready, the screen will
display a warning message, if you wish to continue without logging press the start button
again else press stop, insert the memory stick and then re-start the program once the memory
is ready.
The system is supplied with a 1Gb memory stick, this is sufficient for around 2 years of
constant logging and so is unlikely to be filled up if used correctly. The options screen of the
MP25 allows you to check the remaining memory if the display shows >65K then there is
enough space on the memory stick to continue logging. As with any memory device, they are
Supervisors Card for Programming of MP25.
The adjustment of the 25 programmable programs
restricting the personal settings of individual
operators.
Operators Card for personalisation of autoclave use.
Operator’s user number will be printed on data logger
printout when the autoclave is cycled.
Extra cards are available on request. (Chargeable)
Contact: Rodwell Scientific Inst., Spares Department.

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not guaranteed 100% and can fail. A power failure or removal of the stick while logging will
most probably cause some loss of data, so it is recommended that the memory stick is
removed and all logs are backed up to another device on a daily basis.
The log files are recorded on the memory stick using the machine serial number and batch
number as a file name, the common suffix .MSL is applied to all log names.
Using the logger display program:
Please refer to the separate manual for information on using this program. A PDF file on the
memory stick explains fully how to install and use the PC based logger software
NOTE
Rodwell Scientific have tested and configured the ‘memory stick’ supplied to operate with
the MP25 controller and to provide ease of operation. Rodwell scientific do not advise the use
of other memory devices with their controllers. Once files are backed up to a secure device
they can be deleted from the memory stick.

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SECTION FOUR
‘NORMAL’ OPERATING PROCEDURE QUICK GUIDE
With autoclave door open ‘LOAD’ Chamber with items to be sterilised and place the Load
temperature probe into centre of the machine, into the largest load or into a suitable load
simulator as best suits the application
Check that the water level is above the high probe (display indicates low water if filling is
required)
Close the door and tighten the bolts until you hear a beep (Bottom bolt first)
Choose the required program cycle, if the correct program is not already set then change
the program parameters as required
If your autoclave vents into a containment vessel make sure that this no more than half full
with water
Press the start button to start the cycle
Wait for cycle to complete
ON COMPLETION OF CYCLE UNLOAD AUTOCLAVE

To close down the autoclave simply switch off the mains power.
Observe all matters of safety.

SECTION FIVE
BASIC FAULT FINDING
The sterilising cycle is continually monitored to ensure correct progress. Should the system
fail to sterilise for any reason or should a fault develop that could prevent correct operation
the machine will lock out. The screen messages will help you or an engineer to determine
the cause of the fault.
Once the system is locked out the door will not release until after the lockout has been reset.
This helps reduce any risk of exposure to the potential hazard of unsterilised materials. Once
the lockout has been reset it is possible to re-start the sterilising process, or to open a door if
required to rectify the cause of the lockout. Before attempting to open the door, establish the
cause of the fault and the risks involved in opening the unit. Although the system has double
safety protection, take care, it is possible that the load could be at a high temperature or not
correctly sterilised. If you consider it safe to open the door or re-start the cycle, select the
options screen and select ‘reset lockout’ press enter to reset, then press door open. Provided
the temperature is below the safe temperature the door should release. If the temperature is
above that permitted then the display will indicate this. If this should be the case then you
will need to wait for the temperature to drop further before repeating the above sequence. To
re-start the cycle simply press the start button once the cause of the fault has been rectified.
Pressure switch
The safety door interlock pressure switch failed to operate at or above 103C. check that the
door bolts are properly secured then restart the cycle
Service lockout
Service lockout occurs after a number of cycles or period of time. This can be reset in the
normal manner but will repeat until the cycle counter and time is correctly reset. To reset
cycle counter and period timer a service reset card or valid engineers card will be required.
This should only be performed after a service has been carried out by an authorised service
engineer
Power interruption
If the mains supply to the machine is interrupted during a program cycle then when the power
is restored the machine will attempt to resume from the point of failure. Under some
conditions this is not possible for example if the temperature has dropped below the
sterilising value. Under these conditions the machine will lock out displaying this message.
The load will have to be sterilised correctly or destroyed as appropriate.
Main door open
This can occur if one (or more) of the switches on the door bolts operate during a cycle, the
machine will lock out and will open the exhaust valve to vent pressure from the chamber.
Make sure the door bolts are secure and re-start the cycle
Door is unlocked
If the thermal lock solenoid does not release correctly this condition occurs. Make sure the
door bolts are secure and re-start the cycle

Thermal overheat
There is a thermal safety switch fitted to the boiler. If this switch operates then this message
is displayed. You will need to call a service engineer to reset this safety device.
Some conditions can occur when attempting to open the door.
In order to maintain safety and prevent possible damage to the machine there are a number of
conditions that prevent the door being opened. The following fault messages identify these
conditions.
Excessive temperature
The door cannot be opened until all both probes are below 80ºC if the temperatures are above
this you must wait for them to drop.
Pressure locked
The pressure lock has failed to release, make sure that the mechanism is not jammed. Turn
the top lock bolt a little in each direction to try and free it.
Door lock jammed
If the thermal lock solenoid does not pull in then the door cannot be opened. Turn the bottom
lock bolt a little in each direction to try and free it
Water level low/Out of water
Fill with water and restart the cycle
Cycle Failed
There are a few conditions that will cause the cycle to fail. The display shows cycle failed
instead of the normal cycle complete. The display will also show one of the following
messages:
Temperature droop shows if the temperature of the load falls below the set point for a
prolonged period. You should look at the recorded data for the log and decide if it is safe to
pass the load or if it should be sterilised again. If the fault persists then have your machine
checked by an authorised agent.
Power interruption is displayed if the cycle was interrupted by a power supply fault. The
cycle will have restarted and should have sterilised for another period. You should check the
recorded data and decide if it is safe to accept the load or if any other action is required.

FAULT FINDING CHART
FAULT CAUSE REMEDY
=============================================================
No mains power Switch on/Check fuses
Door will not open Temperature too Allow more time
high. to cool.
Malfunction of Safety Locks Release (Call Service
Department)
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No power supply. Check fuses.
Pushresetbutton
Cycle fails to start Door not closed. Tighten door bolts.
DO NOT FORCE.
Water level Low Fill with water.
Water level is not Water too pure.
detected by probes
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Setting too high Reset temperature
136 degrees C max.
Fails to reach set
temperature Heating element Replace (Service
fault. Dept.)
Dirt in steam trap Clean (Service Dept)
Dirt on exhaust Clean/Replace
valve seat (Service Dept.)
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If your problem cannot be corrected by the use of the above information, a service engineer
should be called.

SECTION SIX
ROUTINE MAINTENANCE
Replacing printer paper roll
Access to the printer for changing the paper roll is provided by a hinged front panel. The
spring-loaded catch on the left hand side of the printer front panel should be depressed to
release the front panel. The paper roll carrier is mounted on the rear of the printer front panel
and will swing out from the main body for ease of roll changing see figure 1
1 If there is any paper left on the roll cut where it enters the mechanism and press the
feed button on the front panel to remove the paper from the mechanism. Do not pull
the paper by hand as this may damage the mechanism.
2 Remove the large retaining disk from the end of the paper holder and remove the core
and any remaining paper.
3 Cut the end of the new roll cleanly and slide it onto the carrier with the loose end
towards the front of the printer and feed the end up into the printer mechanism, press
and hold the paper feed button until the mechanism takes the paper and it starts to
appear from the front of the printer.
4 Ensure that the paper follows the correct path as per figure 2
5 Replace the retaining disk and close the printer.
Replacing printer ribbon
When the print becomes feint it is time to replace the ribbon
1 Tear off any paper that is projecting from the printer and open the mechanism as
above
2 Press the side of the printer mechanism behind the main door release to swing the
mechanism away from the front panel see figure 3.
3 Press gently on the ribbon where indicated and the ribbon will pop up, carefully slide
it away over the projecting paper (figure 4)
4 Make sure that the new ribbon is not hanging loose, gently turn the knob on the
ribbon in the direction indicated if it is. Place the ribbon over the paper and slide it
down squarely onto its locations, the end with the knob should be pushed down first
and then a gentle push on the end marked push will allow the ribbon to click firmly
into position.
5 Close the printer mechanism and then the printer

Correct paper path
Main door release catch
Printer release catch
PUSH
Figure 1
Figure 2
Figure 3
Figure 4
Ribbon above paper
Feed paper between ribbon
and cartridge

Daily Maintenance by Operator
1) Ensure that all safety interlocks are operating correctly. In the event of failure DO NOT
use the autoclave. Call a person in authority.
2) Check that the Load temperature probe is not damaged or defective before each cycle.
(If the probe is damaged the autoclave must NOT be used, Call a person in authority).
3) Check the door seal to ensure that it is in a good condition free from any cuts or
abrasions, clean with a damp cloth.
4) Clean all foreign matter from the chamber. The surface of the chamber should be
washed with water containing a mild detergent; the baskets should be cleaned in a
similar way. (Materials that will leave deposits such as cotton wool should not be used
for cleaning)
5) Keep the autoclave clean and free from dust and dirt.
Weekly Maintenance
1) Check the calibration of the temperature and pressure gauges together with the chart
recorder if fitted. (120.5ºC = 1.0bar, 134 ºC = 2.0bar)
2) Check that indicating display and alarms function correctly.
3) Check pipe connections for signs of leaks.
4) Lightly lubricate the door bolt with high melting point copper slip.
5) Back up all logs on the USB memory stick
Monthly Maintenance
1) Check that the daily and weekly maintenance has been carried out.
2) Scrub out chamber and remove any deposits. Ensure that materials used do not have
any ferrous content (Steel wool etc. will leave a contaminated deposit and the chamber
will appear to have rusted).
3) Check door bolt and hinges for wear.
This autoclave is fitted with several safety interlocks which will require periodic maintenance
and adjustment. In the interest of safety and to help to prolong the life of the autoclave,
regular maintenance must be carried out by a competent engineer at least every 6 months or
300 cycles if sooner in order to ensure that the equipment is in safe operating condition and
that it maintains a satisfactory level of performance. It should also become standard practice
to carry out the routine checks as listed above.