Mocom Exacta User manual

AUTOCLAVE Exacta
OPERATING MANUAL

EXACTA
ii
Edition: 2
Rev.: 0
Date: November
1998
0051

UPDATING
The following table lists the editions and revisions of the Operating Manual. The field “Descrip-
tion” reports a short description of the updating.
Edition
Rev.
Date
Description
1
0
04-97
First issue
1
1
02-98
Correction on pages: 19 - 22 - 24 - 29 - 32 - 35 - 36 - 38 - 39 - 41
- 43 -45 - 46
2
0
11-98
New edition and lay-out

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CONTENT
GENERAL
SAFETY INFORMATION..............................................................................................1
FOREWORDS ............................................................................................................... 2
GENERAL WARNINGS .................................................................................................2
DELIVERY GENERAL NOTES AND STANDARD ACCESSORIES ............................. 3
INTRODUCING THE AUTOCLAVE
AUTOCLAVE STERILIZATION PRINCIPLE.................................................................5
DESCRIPTION.............................................................................................................6
MAIN FEATURES .............................................................................................11
FONT VIEW .................................................................................................................7
FRONT PANEL ............................................................................................................8
REAR VIEW .................................................................................................................9
INSTALLATION AND TRANSPORT
GENERAL INFORMATION......................................................................................... 11
INSTALLATION REQUIREMENTS............................................................................. 11
ELECTRICAL CONNECTION.....................................................................................12
CONNECTING THE PRINTER...................................................................................12
CONNECTING THE PERSONAL COMPUTER..........................................................13
INSTALLING THE BACTERIOLOGIC FILTER...........................................................13
LIFTING/TRANSPORT/STORING.............................................................................. 13
OPERATION
SWITCHING ON ........................................................................................................ 15
FILLING THE DISTILLED WATER.............................................................................15
PROGRAMMING DATE AND TIME............................................................................16
FRONT PANEL KEYS AND INDICATIONS....................................................................17
PROGRAM SIGNALLING LEDS ....................................................................... 17

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TEMPERATURE DISPLAY................................................................................17
PRESSURE DISPLAY .......................................................................................18
TIMER DISPLAY................................................................................................18
DISTILLED AND USED WATER TANK LEVEL SIGNALLING...........................18
START/STOP KEY ............................................................................................19
CHOOSING A STANDARD STERILISATION PROGRAM.....................................19
CHOOSING A STANDARD DISINFECTING PROGRAM.....................................20
SELECTING THE FAST CYCLE........................................................................21
PROGRAMMING A SPECIAL CYCLE ...............................................................21
DRY OFF KEY...................................................................................................22
ON/OFF KEY AND ALARM LED........................................................................22
AUTO SWITCH OFF..........................................................................................22
SEQUENCE OF A CYCLE..........................................................................................23
STOPPING A CYCLE ........................................................................................24
EMPTYING THE USED WATER TANK......................................................................24
MAINTENANCE
GENERAL...................................................................................................................25
STANDARD MAINTENANCE AND AUTOCLAVE CLEANING....................................25
PREVENTIVE MAINTENANCE...................................................................................26
GASKET AND PORT-LIGHT CLEANING ..........................................................27
OUTER SURFACES CLEANING AND DISINFECTING.....................................27
CHAMBER, HOLDER, AND TRAYS CLEANING...............................................27
BACTERIOLOGICAL FILTER REPLACEMENT.................................................27
CLEANING OF THE DISTILLED WATER TANK ...............................................28
CLEANING OF THE CHAMBER FILTER...........................................................28
SAFETY VALVE MAINTENANCE......................................................................29
GASKET REPLACEMENT.................................................................................29
MECHANICAL PARTS LUBRICATION..............................................................29
VACUUM TEST (VT) .........................................................................................30

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CONTENT
TROUBLESHOOTING
LIST OF ERROR AND ALARM MESSAGES.............................................................. 31
TROUBLESHOOTING BY THE OPERATOR.............................................................32
APPENDIXES
TECHNICA CHARACTERISTICS............................................................................... 35
BEFORE STERILIZING.............................................................................................. 36
INSTRUMENTS CLEANING.............................................................................. 37
ARRANGEMENT ON THE TRAYS....................................................................36
OPTIONAL ACCESSORIES....................................................................................... 38
SPARE PARTS ..........................................................................................................39
ELECTRICAL DIAGRAM............................................................................................40
HYDRAULIC DIAGRAM .............................................................................................41
PERSONAL NOTES................................................................................................... 42
DECLARATION OF CONFORMITY

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GENERAL
Dear Customer
M.O.COM. thanks for the confidence given to its product and hope that its performances will be of fully
fulfillment.
The machine described in this Manual meets the general safety direction in force, and no danger for the
operator occurs if the apparatus will be used according to the instructions given in these pages.
SAFETY INFORMATION
Read carefully this document and follow the instructions here contained.
*Take care to paragraphs marked by finger symbol.
“ATTENTION”
This symbol identifies possible hazard and requires correct proce-
dures in order to avoid injuries.
“WARNING”
This symbol indicates the needs for correct operational and

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maintenance procedures in order to avoid equipment malfunction.
“HOT TEMPERATURE SURFACE”
This symbol is placed near hot temperature surfaces where care must be
taken to void scalds.
“EQUIPMENT WITH ESD DEVICES ”
Boards (i.e. mi- croprocessor board) mount MOS/MOSFET components; spe-
cial precau- tions must be used by service technician in order to avoid
electrostatic discharges that would affect the equipment operation.

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GENERAL
FOREWORDS
Aim of the manual is to support the operator
for:
–Correct installation;
–Safe and efficient operation;
–Regular maintenance.
*INFORMATION CONTAINED IN THIS MAN-
UAL COULD BE MODIFIED WITHOUT PRIOR
NOTICE.
*M.O.COM. DOES NOT ANSWER FOR
POSSIBLE OR CONSEQUENT DEMAGES
DURING THE DELIVERY,INSTALLATION
AND USE OF THIS PRODUCT.
*ALL RIGHTS RESERVED.PASSING ON AND
COPYING OF THIS DOCUMENT,USE AND
COMMUNICATION OF ITS CONTENTS NOT
PERMITTED WITHOUT WRITTEN AUTHORI-
ZATION.

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GENERAL WARNINGS
The appliance must be used according to the
procedures contained in this Manual and it
must never be used for purposes different from
the scheduled one.
THE USER IS RESPONSIBLE FOR WHAT CON-
CERN THE FULFILMENT IN THE LEGAL SUB-
JECT CONCERNING THE INSTALLATION AND
THE OPERATION OF THE APPARATUS.IF THE
APPARATUS IS NOT OPERATED IN CORRECT
WAY OR A NOT APPROPRIATE MAINTENANCE
IS CARRIED OUT,THE MANUFACTURER CAN-
NOT BE CONSIDERED RESPONSIBLE FOR ANY
POSSIBLE BREAKAGE,DAMAGE AND MAL-
FUNCTIONS.
–Do not spill water or other liquids on
the appliance (except in the proper
filling point) in order to avoid short-
circuit and corrosion.
–Do not use inflammable substances
on the equipment in order to avoid
fire starting.
–Do not use the appliance in pres-
ence of gas or explosive vapours.
–Before any maintenance or cleaning
action, the a.c. voltage must be re-
moved.
–If it is not possible to disconnect the
a.c. power and the external auto-
matic circuit breaker is far or not visi-
ble to the person in charge of the
maintenance, the notice WORK IN
PROGRESS must be placed on the ex-
ternal breaker and it must be
switched in OFF position.
–Make sure that the electrical plant is
provided with ground connection
according to law in force in the
country of the installation.
–Do not remove any label or plate; in
case require for some new one.
–Demand only for the original spare
parts.
THE SUPPLIER WILL DECLINE ANY LIABILITY IF
THE SAFETY RULES DESCRIBED ABOVE HAVE
NOT BEEN OBSERVED.

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GENERAL
*WHEN RECEIVING THE MACHINE,PLEASE
CHECK THAT THE PACKING IS WHOLE.
1
2
3
4
5
6
7
8
GENERAL NOTES ON DELIVERY AND STANDARD ACCESSORIES

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Wait for the Local Agent technician to open the
box, and check with him that:
–the supply corresponds to the order
specifications (see the delivery note);
–there are no evident damages;
In case of damages or of missing parts, please
inform immediately and in detail the forwarder,
and the Local Agent.
PACKAGING DIMENSIONS AND WEIGHTS
Height 62 cm
Width 57 cm
Depth 56 cm
Weight 52 kg
STANDARD ACCESSORIES:
–Autoclave Exacta
–1. Three anodized aluminum trays
–2. One stand inox tray-holder
–3. One tray removal tong
–4. One tank for distilled water
–5. One water drain tube
–6. One bacteriological filter
–7. One power supply cable
–8. Operating manual - warranty
certificate
*THE WARRANTY DOCUMENT MUST BE
KEPT BY THE CUSTOMER.

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GENERAL

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The experience acquired over the years has
shown that all the various sterilization methods
available are reliable, however the safest and
most efficient method for achieving complete
asepsis is undoubtedly autoclave method, ei-
ther with dry alcoholic vapour or with saturated
steam. The progress made by the autoclave
manufacturer has placed this equipment as the
first of sterilization apparatuses, that may be
widely used in all hospital departments and
surgeries.
The operating principle of the autoclave is gov-
erned by the Boyle's law which correlates pres-
sure, temperature and volume. There is a main
difference between the chemical autoclave and
the distilled water autoclave as far as the ways
in which the micro-organisms are eliminated
are concerned. In fact, although the principle is
similar, the factors which lead to the asepsis are
different.
In distilled water autoclaves, the sterilization
function is based only on the perfect distribu-
tion of heat, thank to the action of the saturat-
ed steam which transfers its heat to the mate-
rial. Indeed, all the material, whether solid or
liquid, has to be treated at the required tem-
perature and for a sufficient time. The pressure
in itself doesn't contribute in any way to the
lethal process, but serves solely the steam to
reach high temperatures.
Whenever the steam comes into contact with
any colder material or substance, it yields its
quantity of heat, by condensing and thus in-
creasing the temperature of the object. This
action continues until a thermal balance is
reached, after which no further condensation
and heat exchange occurs. Whatever the na-
ture of the material may be (liquid or solid) the
sterilization takes place in a aqueous fluid. This
leads to the following considerations: firstly,
the overheated steam must be avoided, and
secondly, all the air must be removed.
The overheated steam (steam heated above its
normal temperature in relation to its pressure)
must be avoided because, although condensa-
tion takes place during the initial stages of heat-
ing and in the usual way, it then evaporates and
the sterilization process becomes a dry heat
process, for which the conditions are complete-
ly different and the sterilization temperature is
very much higher. The air must be completely
removed, otherwise it gathers in pockets or
layers thus preventing the penetration of the
steam and the efficient heat exchange
AUTOCLAVE STERILIZATION PRINCIPLE

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INTRODUCING THE AUTOCLAVE
With the steam, the heating process isn't in-
stantaneous in any case, and the time needed
to reach the balance at the required tempera-
ture varies according to the sizes of the auto-
clave, the load quantity and the steam penetra-
tion speed. With liquids and materials, such as
surgical medications and glassware in which the
penetration is difficult or the thermal capacity
is high, the time factor is very important, and
due account should be taken in the treatment
program. The sterilization time may be ex-
tremely short compared to the heating period.
Both European and American Scientific Com-
munity have established and defined three
temperatures, 115°C, 121°C and 134°C, and
relative exposures by which to manage the var-
ious materials according to their heat re-
sistance. It has also verified the effectiveness of
the treatment at 105°C with an appropriate
exposure that can be used to disinfect the more
thermally unstable materials having no contact
with the patients.
With distilled water, the most commonly used
sterilization programs are:
–134°C/4 minutes for miscellaneous
loads and 12 minutes for porous
loads;
–; 121°C/15 minutes for miscellaneous
loads and 30 minutes for porous
loads;
–115°C/30 minutes for miscellaneous
loads and 45 minutes for porous
loads.
The programs at lower temperatures are clearly
the only ones that guarantee a high safety mar-
gin for the thermally unstable materials About
the disinfecting, it is generally used the cycle of
105°C/20 minutes for miscellaneous loads, and
of 30/40 minutes for porous loads.

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These equipment are extremely simple and ver-
satile for what concern the operation, they are
provided with a front panel with all the com-
mands and signallings for the correct operation.
EXACTA provides 9 standard programs (6 for
sterilization and 3 for disinfecting), all opti-
mized for the safest and quickest treatment of
the different materials used in the hospital and
dental environment. Besides the operator can
arrange different set points for time and tem-
perature to operate with steriliza-
tion/disinfecting non-standard program.
The equipment consists of: pressure chamber
with heating element, door with clamping lever
and portlight gasket, charge tank for the dis-
tilled water, gathering tank for the used water,
vacuum pumps, one water loading pump and a
series of electrovalves for the hydraulic opera-
tion. Besides one parallel interface and one se-
rial interface are available respectively for a
report print-out of the cycle data and a PC con-
nection.
All the parts are operated and controlled
through a microprocessor that grants the best
efficiency in the different sterilization cycles, in
particular, the heating resistances are checked
to obtain a constant rise gradient of the water
temperature and to keep the vapour at the
right temperature of the selected cycle.
A sterilization cycle includes the following
phases:
–FILL 1
First distilled water filling into the steri-
lization chamber
–TERMODYNAMIC VACUUM 1
First air bleeder by thermodynamic sys-
tem
–PRE-VACUUM
Pump air vacuum up to -0.78 bar / -0,83
bar
–FILL2
Second distilled water filling
DESCRIPTION

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INTRODUCING THE AUTOCLAVE
–HEATING
Heating of the water up to boiling point
–TERMODYNAMIC VACUUM 2
Second air bleeder by thermodynamic
system
–HIGH PRESSURE
Water vaporization and chamber high
pressure
–PROCESS
Exposure of the material for the select-
ed temperature and time
–DRY (or DECOMP in case of liquids)
Vacuum drying of the material
–LEVEL
Leveling and forced ventilation with
sterile air
–END
End of the cycle (open the door and re-
covery of the material)
MAIN FEATURES
–Patented initial vacuum system
–Very fast cycles
–Simple cycle selection and pro-
gramming through front panel push
buttons
–safety handle to prevent the opening
of the door during the sterilization cy-
cle; the door can be opened only
when the inside pressure of the
chamber is lower than 0,60 bar;
–safety valve for the steam discharge
in case of breakdown of the controls
and over pressure >2,4 bar (TÜV certi-
fication)
–alarm signaling for wrong operation
and on line self test;
–safety thermostat;
–EMI protection devices;
–separation of the used and distilled
water through different tanks;
–vacuum drying, as foreseen in the
hospital field;
–"Vacuum Test" to verify the seal of the
chamber and of the hydraulic circuit.
–TÜV GS certification.

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THE CHAMBER FORMS A PRESSURE CONTAIN-
ER AND SO NO ACTION FOR REMOVING THE
PROTECTION DEVICES ARRANGED AGAINST
THE OPENING MUST BE CARRIED OUT.
FRONT VIEW