Atmos S 351 NATAL User manual

ATMOS®
S 351 Natal
0124 GA1GB.210302.0
2017-07 Index: 26
Operating Instructions
English

2
1.0 Introduction.........................................................3
1.1 Notes on operating instructions ............................3
1.2 Function ................................................................4
1.3 Explanation of symbols.........................................4
2.0 For your safety....................................................5
3.0 Intended use........................................................7
4.0 Setting up and starting up .................................8
4.1 Indicators and controls..........................................8
4.2 Initial start-up ......................................................10
4.2.1 Using a trolley .....................................................11
4.2.2 Hose connections for vacuum extraction............12
4.2.3 Hose connections for suction mode....................12
4.2.4 Indicators and control panel................................14
5.0 Operation...........................................................15
5.1 Basic operation ...................................................16
5.1.1 Switching on........................................................16
5.1.2 Fully automatic vacuum build up
(VE Auto Mode)...................................................17
5.1.3 Semi-automatic vacuum build up ...........................
(VE Semi Mode)..................................................19
5.1.4 Controlled venting (vacuum release) ..................21
5.1.5 Additional functions.............................................22
5.1.6 Using the foot controller......................................23
5.1.7 Vacuum build up with foot controller ...................24
5.1.8 Starting automatic vacuum build up from
a vacuum value preset the in suction mode........24
5.2 Warning signals ..................................................25
5.2.1 Vacuum drop during vacuum build up.................25
5.2.2 Vacuumdropafternalvacuumhasbeen
reached...............................................................25
5.2.3 Final vacuum not achieved .................................25
5.2.4 Short circuit between contact terminals ..............26
5.2.5 Electronicllinglevelmonitoring.........................26
5.2.6 Electronicltermonitoring...................................26
5.3 Settings in the service menu...............................27
5.3.1 Switching on/off of alert tones.............................28
5.3.2 Vacuum build up / release time...........................28
5.3.3 Final vacuum.......................................................28
5.3.4 VE Automatic ......................................................29
5.3.5 Unities.................................................................29
5.3.6 Brightness of display...........................................29
5.4 Trolley operation .................................................30
5.5 Suction function ..................................................30
5.5.1 Changing the secretion canister .........................31
5.5.2 Suction with foot controller..................................32
5.6 Faults ..................................................................33
5.6.1 Emergency operation..........................................33
5.6.2 Overheating ........................................................33
5.6.3 Fault....................................................................33
6.0 Cleaning and Maintenance...............................34
6.1 Reprocessing of hoses and secretion canister ...34
6.2 Cleaning and disinfecting the surface
of the unit ............................................................35
6.3 Recommended instrument disinfectants.............35
6.4 Recommended surface disinfectants..................35
7.0 Maintenance ......................................................36
8.0 Troubleshooting................................................37
9.0 Spare Parts and Accessories ..........................39
9.1 Spare parts .........................................................39
9.2 Accessories.........................................................41
9.2.1 Canisters.............................................................41
9.2.2 Accessories to simplify handling.........................41
9.2.3 Filter combination................................................41
9.2.4 Gynaecology.......................................................42
9.2.5 Obstetrics............................................................42
10.0 Technical data ...................................................43
11.0 Disposal .............................................................44
12.0 Notes on EMC....................................................45
Content

3
1.1 Notes on operating instructions
These operating instructions contain important notes on how
to operate the ATMOS®S 351 Natal safely, correctly and
effectively. Therefore, they are intended not only for new
operating personnel to be instructed in its use, but also for
use as a reference manual. They help to avoid risks, and
also to reduce repair costs and down-times. Furthermore,
reliability and service-life of the equipment will be increased.
For these reasons these operating instructions must
always be kept available near the appliance.
Priortorstusepleaseperusethechapter2.0“Foryour
safety”, in order to be prepared for any possible dangerous
situations. To do this during work, would be too late.
The basic principles are:
Judicious and careful work provides best protection
against accidents!
Operational safety and readiness for use of the device
depend not only on your capabilities, but also on the care
and maintenance given to the ATMOS®S 351 Natal. For
this reason regular cleaning and service work are a must.
Major maintenance and repair work may be carried out
only by expert personnel authorised by ATMOS. In case
of repairs you should insist that original spare parts only
are used. You will then have the warranty that operational
safety, readiness for work and the value of your appliance
will be preserved.
• The product ATMOS®S 351 Natal bears CE marking
CE-0124 according to the EC Directive of the council
for medical products 93/42/EEC and meets the basic
requirements of Appendix I of the directive.
• The product ATMOS®S 351 Natal complies with all
applicable requirements of the Directive 2011/65/EC
restricting the use of certain hazardous substances in
electricalandelectronicequipment(“RoHS”).
• The declaration of conformity and our general standard
terms and conditions can be obtained on our website at
www.atmosmed.com.
• The quality management system at ATMOS has been
certiedaccordingtointernationalstandardsENISO
13485.
• ATMOS will supply a service manual containing detailed
circuit descriptions and schematics as well as information
on adjustment and servicing to service organizations
authorized by ATMOS.
• Reprints - also in extracts - only with permission in written
form by ATMOS.
• These operating instructions are effective from serial
number 2567350001.
Short cuts / symbols contained in this operating
instructions
• Indicating a list
- Subdivision of a list/activity
The recommended sequence must be followed in each
case!
)Indicating particularly important advice!
ATMOS
Phone: + (49) 7653 689-0
Fax: + (49) 7653 689-190
+ (49) 7653 689-393 (Service Center)
E-mail: [email protected]
Internet: www.atmosmed.de
MedizinTechnik GmbH & Co. KG
Ludwig-Kegel-Str.16
79853 Lenzkirch
Deutschland / Germany
1.0 Introduction

4
1.3 Explanation of symbols
"max."
Caution, observe operating instructions
Equipment safety fuse
Device off
Device on
Maximum vacuum
Alternating current
Ground wire connection
Trolley
Foot controller
Filter blocked
Full secretion canister
Bacteriallter
Potential equalisation
Application part type B
Extraction cup
1.2 Function
The ATMOS®S 351 Natal is a mains-operated suction unit.
The quiet, maintenance-free diaphragm pump forms the
core of the ATMOS®S 351 Natal. It creates a vacuum in the
secretion canister which assists in drawing off and collecting
thesecretions.Thenalvacuumrequiredandthusthe
suction power can be preselected in steps with the press of
a button. The ATMOS®S 351 Natal produces this vacuum
with the aid of a microprocessor-based controller. The pump
switches off when the set value is reached. A control circuit
ensures that the pump only runs when the vacuum is less
than the value set.
The ATMOS®S351Natalisusedforxationofbodyparts.
Inparticularababy'sheadcanbexedwiththehelpofan
extractioncup.Inadditionbodilyuidsandrinsinguidsare
collected in a secretion canister.
Theelectronicllinglevelcontrol,asafetycanister(optional)
andabacteriallterpreventsecretionsbeingsuckedinto
the unit.
Various monitoring and control functions increase the ease
of operation of the ATMOS®S 351 Natal and ensure safe
use. These are, for example:
• Electronicllinglevelmonitoringofthesecretioncanister
which provides visual and acoustic signals when the
maximum level is exceeded.
• Electronicltermonitoringsignallingablocked(clogged)
lteraudiblyandvisually.
• A monitoring function which checks all main equipment
functions at regular intervals and activates a service
request indicator if a fault is detected.
All components which come into contact with the secretion,
such as secretion canister, lid system or suction hoses can
be autoclaved (134°C, 3 bar, 5 min 3x fractionated pre-
vacuum).
A special equipment trolley can be supplied for mobile use.
Ventilating the extraction cup
1.0 Introduction
!

5
• The vacuum must be built up slowly in a controlled
manner for vacuum extraction.
• The user must continuously check the vacuum during
vacuum extraction.
• If the vacuum cannot be reduced despite correct
adjustment of the equipment (defective auxiliary air
valve), we recommend closing the suction hose between
pumpconnectionandbacteriallterinanair-tightmanner
(pinch) and then removing the suction hose from the
pump connection or cutting through the suction hose on
the pump connection with a scalpel. Then carefully let air
back into the suction hose (carefully release the pinched
suction hose) so that the vacuum is removed as slowly
as possible.
• The ATMOS®S 351 Natal version for vacuum extraction
ontrolley320.0070.0mustnotbeusedasuidsuction
unit for operations as the electronic secretion canister
overowmonitoronthistrolleydoesnotwork.
• The buffer canister for vacuum extraction must have a
volume of at least 1 litre.
• During vacuum extraction, the automatic mode can be
disabled by operating the foot controller.
• Prior to and during vacuum extraction, pay attention that
connection hoses are not kinked and that no blocked
lterisused.Priortoeachapplication,checkwhetherthe
lterisblocked.
• Vacuum extraction may not be possible at elevated
altitudes as it may not be possible to achieve the vacuum
required. It is at the discretion of the specialist whether
an operation using the suction unit can be carried out at
thenalvacuumobtained.
• Thecanisteroverowsafetyisdeactivatedduring
vacuum extraction.
• In case of a failure of the mains power supply or
accidental switching off of the equipment during
extraction, this must be aborted and production of the
vacuum has to be re-started after the equipment has
been successfully restarted. The best way to do this is by
pinching the suction hose to maintain the vacuum in the
cup, venting by pressing the END button and building the
vacuum again (pressing the extraction cup button) and
then applying the vacuum by releasing the pinched hose.
• Only approved extraction cups with CE marking in
accordance with RL 93/42 must be used.
• The system must not be ventilated suddenly with
simultaneous pulling on the extraction cup.
• Ifthenalvacuumsetisnotachieved,theATMOS®S
351Natalwillnotissueanaudiblesignal„nalvacuum
achieved“.
• The treating doctor is responsible for the proper surgical
procedure and technology! The adequacy and the kind of
application must be decided by a trained doctor according
to circumstances.
• The ATMOS®S 351 Natal may be used only by trained
staff under supervision (IEC 601-1 / EN 60601-1).
• The ATMOS®S 351 Natal meets the immunity to
interference requirements of IEC 601-1-2 / EN 60601-
1-2 „Electromagnetic Compatibility – Medical Electrical
Devices“.
• Always set up the unit in such a way that the operating
elements are in clear view and within easy reach of
the operator. Pay attention to maximum stability of the
installation surface.
• The ATMOS®S 351 Natal has been designed in
accordance with IEC 601/ EN 60601. The equipment
conforms to VDE Safety Class I. It must only be
connected to a properly installed earthed socket.
• Before connecting the device it needs to be checked
whether the requested mains voltage of the device
matches the mains voltage of the mains power supply.
• Use only correctly installed mains sockets and extension
cables.
• Check device, secretion canister, power cable,
accessories, connection cables and hoses for damage
before start-up. Defect cables and hoses must be
replaced immediately. Check functions of the device prior
to using it!
• Todisconnectthedevicefromthemainssupply,rst
remove the plug from the wall outlet. Disconnect the
connection line on the device afterwards only. Never
touch plug or line with wet hands.
• Following transportation at low temperatures the
appliance must be held for up to six hours at ambient
temperaturebeforerststart-up.Ifthedeviceisnot
acclimatized it may not be used as damages to the
electronic components could occur.
• When switching on the unit, a high vacuum value might
be present.
• This product is not re-sterilizable. Repeated reuse of
components which are marked with a 2is forbidden.
In case of repeated reuse these components lose their
function and there is a high infection risk.
2.0 For your safety

6
• The suction hose must never come into direct contact
with the suction area. A suction catheter, suction
attachment or medical suction instruments must always
be used.
• Too high vacuum values may lead to tissue damages.
• Only use transparent hoses or hoses destined for
vacuum extraction.
• Please observe the ambient conditions stated in the
technical data (chapter 10.0).
• The device must only be operated in rooms designated
for medical use. The ATMOS®S 351 Natal is not
designed for use in explosion-hazardous areas and in
oxygen rich environments. Explosion-hazardous areas
maybecausedbytheuseofammableanaesthetics,
skin cleansing products and skin disinfectants.
• The foot switch is suitable for operation in the above
mentioned areas.
• If demineralized / slightly mineralised water or tap water
issuckedoff,theoverowmonitoringoftheATMOS®S
351 Natal does not function reliably as it works on an
electrical basis.
• Do not allow any liquid to get into the device. If liquid has
penetrated the unit, it may not be operated again until it
has been checked by the customer service centre.
• When using on a patient (e.g. during surgery), an
additional equivalent device should be ready in case of
failure of the device (backup suction device).
• The level of preselected vacuum and the selection
of additional products must be as instructed by the
specialist for all applications on a patient, e.g. for vacuum
extraction.
• Particularly important notes are placed in a frame in
these instructions.
• The software detects a full secretion canister respectively
theshort-circuitbetweenthecontactterminals“and
issues a warning at regular intervals. This does not
interrupt the process of vacuum extraction.
• Dispose of wrappings accordingly.
• Please note:
A medical insulating transformer with earth leakage
monitor or any similar safety system acc. to EN 60 601-1
is required, if several devices are connected over one
common power supply. The transformer must correspond
to the power consumption of all the devices to be
connected.
References
Medical product law (MPG) dd. 07.08.2002
EN 60601-1/1996: Medical electrical equipment. General
safety information, main section 6. Protection against the
dangerofignitionofammablemixtures.
DINVDE0751Part1/10.90:Repair,modicationsand
testing of medical electrical equipment, Part 1: General
specications.
Obtainable from: VDE-Verlag GmbH, Bismarckstraße 33,
12157 Berlin, Germany.
)ATMOS is not liable for personal injury and damage to
property if
- no original ATMOS parts are being used,
- the advice for use in these operating instructions is
not being observed,
- assembly, new settings, alterations, extensions
and repairs have been carried out by personnel not
authorised by ATMOS.
2.0 For your safety

7
Name: ATMOS®S 351 Natal
Main functions: The ATMOS®S 351 Natal is indicated for vacuum extraction,
suction curettage, suction biopsy, aspiration and removal of
tissue,bodyuidsorinfectedmaterialfromwounds,either
during surgical procedure or on the ward.
The ATMOS®S 351 Natal is also indicated for freeing the
respiratory tract on patients and as a breast pump (removal
of galactostasis and removal of milk).
Medical indications /
application:
For application on human bodies
Specication of the
main function:
As a result of the generated and controlled vacuum parts
ofthebody(especiallytheheadofthebaby)arexedand
bodyuids(secretion)aswellasrinsinguidsarecollected
in a secretion canister.
Application organ: Naturaloricesandopeningswhichresultfromsurgical
procedures
Application time: Temporary
Application site: OT, delivery room
Contraindications: The ATMOS®S 351 Natal is contraindicated for the following
applications:
• Outside medical areas
• Fordrainageofammableorexplosiveliquidsandgases
• For drainage with a low vacuum (e.g. mediastinal,
thoracic or pleural drainage)
The product is: active
Sterility: Not necessary
Single-use product /
reprocessing:
The device and parts of the accessories are reusable, for
information on reprocessing and disinfection please see the
operating instructions.
3.0 Intended use

8
4.1 Display and control elements
Fig. 1. ATMOS®S 351 Natal
Bracket and contact element for secretion canister
Pump connection
Hose reducer 10 - 6 mm
Bracket for secretion canister
Connection for hose to safety canister
Connection for suction hose
Release button for locking system (lid of secretion canister)
ON/OFF switch
Indicators and control panel

4.0 Setting up and starting up
     

9
Fig. 2. ATMOS®S 351 Natal (rear)
10 Mains supply
11 Equipment safety fuses
12 Connection for potential equalization
13 Connection for foot controller
14 Vent
13
12
10 11
14
4.0 Setting up and starting up

10
Fig. 4. Fitting the lid
Fig. 3. Closure system
Locking handle
Knurled screw to lock the cap insert and to adjust the
contact force
Release button
Level sensor with anti-foaming device
Lid rim
Opening for double connecting nipple
Contactsforllinglevelsensor
This section will explain
• how to handle the closure system of the secretion
canister lid
• how to lock and insert the secretion canister
• which hoses have to be connected
• how to connect the ATMOS®S 351 Natal to mains
electricity.
)Perusesafetyinformationinpart2.0“Foryoursafety”
priortostartingupthedeviceforthersttime.
The closure system must tightly seal the secretion canister
so that the vacuum required can build up within. Fig. 3
shows the closure system with the locking handle open.
• Push the closure system over the secretion canister in
accordance with Fig. 4 (take care that the lid rim (, Fig.
4) is below the bead of the secretion canister) and press
the locking handle downwards until it engages.
4.2 Initial starting up
)Theanti-foamingdevicemustbeplacedonthelling
level sensor for strongly foaming secretions.
• Force of the lid system can be changed by turning the
knurled screw (, Fig. 3).
4.0 Setting up and starting up
• Finally insert the double connecting nipple into the
secretion canister lid (Fig. 7). Ensure that it engages by
twisting it slightly.
Fig. 7. Inserting the double connecting nipple
)It is advisable to treat the secretion canister opening with
vaseline or silicone for a better sealing and to care for the
sealing rings.
1 2 3
7 6 5 4
5

11
Fig. 5. Attaching the 1.5 litre secretion canister
Fig. 6a. Attaching the 3 litre or 5 litre secretion canister to
the equipment trolley, REF 444.0020.0
Fig. 6b. Trolley REF 320.0070.0
• Attach the 1.5 litre secretion canister either to the left-
hand or right-hand bracket in accordance with Fig. 5.
Trolley REF 444.0020.0
• If you are using a 3 litre or 5 litre secretion canister,
attach it to the trolley in accordance with Fig. 6a.
Trolley REF 320.0070.0
)When using the trolley, the ATMOS®S 351 Natal must
bermlyconnectedtothetrolleytableusingthetwo
xingscrews(undersideoftrolleytable)(contactsfor
level sensor). The following symbol will be shown on the
display .
)Please do not use the secretion canister brackets on
the ATMOS®S 351 Natal and the trolley for any other
purposes. This will prevent malfunctions.
Unit support
Fixing screws (countersunk screw M 6x16)
Table support
Accessories rail
Castor holder
Castor
Fixing screws (countersunk screw M 6x50, alternatively:
cylindric screw M 6x50)
Unit fastening parts
Also contained in scope of supply: Fitting tool























4.0 Setting up and starting up
4.2.1 Using a trolley

12
4.2.3 Hose connections for suction mode
• Only use transparent hoses in order to be able to assess
the condition of the hoses.
• Connect pump connection (,Fig.8b)andbacteriallter
with a short hose. Connect a second short hose to the
printedsideofthebacteriallterandjoinitwiththesafety
canister lid . Connect the longer hose to the vertical
connection of the double connecting nipple and the
connection of the safety canister.
• Whenusingtheoptionalbacteriallterwiththesafety
canister,thebacteriallteris not required. In this
case connect the short hose to pump connection and
directly to the safety canister lid.

)The ATMOS®S 351 Natal must never be used without a
bacteriallter.

4.2.2 Hose connections for vacuum extraction
• Only use transparent hoses or those specially designed
for the vacuum extraction, in order to be able to assess
the condition of the hoses.
• Connect a short hose with the pump connection (, Fig.
8a)andthebacteriallter. Connect a second short
hosetotheprintedsideofthebacteriallterandjoinit
with the vertical connection of the double connecting
nipple . Use the vacuum extraction hose to join the
horizontal connection of the double connecting nipple with
the cross handle of the extraction cup .

Fig. 8b. Hose connections for suction mode
Pump connection
Bacteriallter
Safety canister lid
Connection on safety canister
Double socket nipple

Fig. 8a. Hose connections for vacuum extraction
Pump connection
Bacteriallter
Double socket nipple
Vacuum extraction hose
Extraction cup (incl. cross handle, chain, hose)

4.0 Setting up and starting up

13
• Nowtthesuctionhosetotheangledconnectionofthe
double socket nipple.
Fig. 9. Connecting the suction hose
• The10mmdiametersuctionhoseistteddirectlyto
connection (,Fig.10)the6mmdia.hoseisttedvia
the hose reducer .
Fig. 10. Double socket nipple
Connection for hose to safety canister
Connection for suction hose 10 mm
Hose reducer for 6 mm hose

4.0 Setting up and starting up

14
• Check whether the voltage and frequency data listed
on the equipment correspond to the power supply and
connect the ATMOS®S 351 Natal via the connector (,
Fig. 11) to mains power. Secure the mains cable against
accidental removal using safety clamp .
• If the ATMOS®S 351 Natal is used for surgical
procedures, we recommend connecting it to the
equipotential bonding connection of the room via
connection .
• If you have a foot controller, connect it to its connection
(, Fig. 11).
The ATMOS®S 351 Natal is now ready for operation.
Fig. 11.
Fig. 12. Display and control panel
Display LED of vacuum extraction function
Button for switching on the automatic vacuum build up
Button for switching on the automatic vacuum release
Display (graphics)
Button for reducing the vacuum (with suction function)
Button for increasing the vacuum (with suction function)
Button for selecting the maximum vacuum (with suction function)
     
  
4.0 Setting up and starting up
4.2.4 Display and control panel

15
5.0 Operation
)Please ensure that the following parts have been
reprocessed before treating a new patient:
• suction hose including suction attachment or suction
instrument
• secretion canister including lid and double socket nipple
• the connection hose to the safety canister as well as the
safety canister, where applicable.
)Prior to each use please check whether the bacterial
lterhastobereplaced.Youmustuseonlyacleanand
drylter.Theelectronicltermonitoringsignalswhenthe
lterisblocked(clogged).
)Replacethebacteriallterwitheverycleaning.For
hygienicreasons,thebacterialltermustbereplacedat
least once a day!
)The suction hose must never come into direct contact
with the patient. A suction catheter, suction attachment or
medical suction instruments must always be used.

16
Fig. 13. Indication for secretion canister full
Electronic lling level monitoring (suction function)
The ATMOS®S 351 Natal is equipped with an electronic
llinglevelmonitoringwhich,inVEmode,doesnot
affect the performance of the pump. The vacuum is not
decreased. The alarm signal for a full canister (Fig. 13)
appears in regular intervals.
In suction mode, the pump is switched off when the
maximumllinglevelisreached.Thedevicegivesan
audible signal and the indication for full canister (Fig. 13)
appears.
Themaximumllinglevelisreachedwhentheliquidcomes
into contact with the sensor (, Fig. 3, page 11) in the
closure system. If a large amount of foam is generated, you
shouldttheenclosedanti-foamingdeviceoverthesensor
so that the unit does not switch off prematurely. As soon
as the sensor is no longer in contact with the liquid (e.g. on
replacing the double socket nipple), the unit switches on
again.
Electronic lter monitoring
The ATMOS®S351hasanelectronicltermonitoringwhich
monitorswhetherthelterisblocked.Thepumpdoesnot
switchoffwhenthelterblockedstateisdetectedsothat
workcancontinue.Changethelterassoonaspossible
when this message is displayed.
Fig. 14. Indication for lter blocked
)The message is also displayed when the hose is pinched
near the unit. This message is also displayed while the
drainage accessories are connected. Remove the parts
in question in this case.
Filter blocked
5.0 Operation
5.1 Basic operation
5.1.1 Switching on
After switching on, the VE mode is active. The adjustments
forthevacuumtobegenerated(nalvacuum)andthe
available time (build-up time) correspond to the adjustments
made in the service menu (see chapter adjustments 5.3,
page 28).
Exception: If there is already a vacuum present when
switching on, this value is assumed as start value for
vacuum generation. Build-up time will then decrease
accordingly.
Ex works, the nal vacuum is adjusted to -80 kPa and
build-up time to 120 s.
Graphics display
All operating states are shown on the graphics display.
Changing unities
The display of the ATMOS®S 351 Natal can be adjusted
to 3 unities: mbar, mmHg and kPa. This switching-over is
described in chapter 5.3, page 28.

17
5.1.2 Fully automatic vacuum build up (VE Auto
Mode)
• Switch on the ATMOS®S 351 Natal. Make sure that the
pilot lamp in the switch lights up.
Then, the switching-on menu (Fig. 15) is shown in the display
for approx. 2 seconds.
Fig. 15. Display directly after switching on
Function vacuum extraction
For vacuum extraction, we recommend to use a small
secretion canister (1.5 l) to enable a quick generation of the
required vacuum value.
Automatic vacuum build up
During automatic vacuum build up, the vacuum is generated
evenlyandnalvacuumisreachedinthepresettime
(standard adjustment = 120 s). For changing this vacuum
build-up time, refer to chapter 5.3 Adjustments, page 27.
Duringvacuumgeneration,thegreenLEDashes.When
thenalvacuumisreachedthedevicegivesanaudible
signal. The green LED lights up constantly.
The device offers the possibility to select between a fully
automatic vacuum build-up (VE Auto Mode) and a semi-
automatic vacuum build-up (VE Semi Mode) (see chapter
5.3 Adjustments, page 28).
The fully automatic vacuum build-up is standardly
preset.
5.0 Operation

18
Fig. 17. Display during automatic vacuum generation
• After having reached the base vacuum of -20 kPa, the
automatic vacuum build up is started and indicated by
analerttone.Theremainingtime(inseconds)tonal
vacuum is shown at the top left of the display (Fig. 17).
Then, the ATMOS®S 351 Natal automatically changes over
into the so-called VE Auto Menu (Fig. 16).
Here, the vacuum generated is displayed. In addition, the
desired vacuum build up time (default = 120 s) is shown top
leftandthenalvacuumsetatthetopright(default=-80
kpa).
The ATMOS®S 351 Natal attempts to build up the base
vacuum of -20 kPa.
• Apply the extraction cup.
Fig. 16. Display after automatic change over into the VE
Auto Menu
Desired vacuum build up time
Selected mode
Final vacuum, target value
Actualvacuum-owvalue(number)
Bar graph for vacuum / time
Currentvacuum-owvalue(graphics)
Basic vacuum -20 kPA (graphics)






• Whenthenalvacuumisachievedthedevicegivesan
alert tone (long tone with one short break). The time
displayedis0s(Fig.18).Thenalvacuumisheld.
Fig. 18. Display after having reached the nal vacuum
Desired vacuum build up time
Selected mode
Final vacuum, desired value
Current vacuum value
Bar graph for vacuum / time
5.0 Operation
 
 

19
Fig. 20. VE Semi Menu. The device attempts to generate a
base vacuum of -20 kPa.
Fig. 21. VE Semi Menu after having reached the the base
vacuum of -20 kPa.
Fig. 19. Extraction cup button
5.1.3 Semi automatic vacuum build up (VE Semi
Mode)
For semi-automatic vacuum build up, the start of the
automaticvacuumbuildupmustbeconrmedwiththe
extraction cup button (Fig. 19).
• Switch on the ATMOS®S 351 Natal. Make sure that the
pilot lamp in the switch lights up.
Then, the switching-on menu (Fig. 18, page 18) is shown in
the display for approx. 2 seconds.
Then, the device automatically changes over into the so-
called VE Semi Menu (Fig. 20 and 21). Here, the vacuum
generated is displayed. In addition, the desired vacuum
build up time (default = 120 s) is shown top left and the
nalvacuumsetatthetopright(default=-80kpa).The
ATMOS®S 351 Natal attempts to build up the base vacuum
of -20 kPa.
• Apply the extraction cup.
Desired vacuum build up time
Selected mode
Final vacuum, desired value
Current vacuum value
Bar graph for vacuum / time




5.0 Operation

20
Fig. 22. Automatic vacuum build up in the VE Semi Mode
• After the -20 kPa basic vacuum is reached, the device
waits for the extraction cup button to be depressed.
During this waiting period, an alert tone can be heard, it
issynchronisedwiththeashingofthegreenLEDwhich
switches on respectively off. When the extraction cup
button is pressed, the alert tone stops and the automatic
vacuum build up starts (Fig. 22).
• Whenthenalvacuumisachievedthedevicegivesan
alert tone (long tone with one short break). The time
displayedis0s(Fig.23).Thenalvacuumisheld.
Fig. 23. VE Semi Mode after having reached the nal
vacuum
5.0 Operation