TECATOR Soxtec System User manual
*•>*-
Fatdetermination
bysolventextraction
withSoxtecSystem
tecator
Sampleprepa-
ration(milling,
homogenization
etc.)
weighsampleinto
thimble(Wi)
Drying
ofsamples
nnnnn
H
cm
Fixthimblesinto
extractionunit
.
Fixweighedextrac-
tioncupsintoEx-
tractionUnit.
nnnonn
1
Weighextractioncups(W2)Addsolventtoextractioncups
nnmnn
Boilingextractionwith
thimblesinsubmerged,
boilingposition(=^10min)
-— iV™**
Finalextractionwith
thimblesinupper,rinsing
position(=^20min)followedbysol-
ventevaporation(=^5min)
Removeextrac-
tioncupsDryextractioncupsWeighextractionf
cupswithextracted/oTai
fat(W3)
W3—W2. inn
—wi—
>•£*„
L
LSoxtecSystem
INTRODUCTION
UNPACKINGAND
CHECKING
INSTALLATION111:1CONNECTION
FUNCTION
IV:11040EXTRACTIONUNIT8
IV:21041SERVICEUNIT8
IV:3EXTRACTIONCUPSANDCUPHOLDER8
IV:4THIMBLEANDTHIMBLEADAPTERS10
IV:5THIMBLESUPPORTWITHHOLDERANDTHIMBLE
STAND10
IV:6THIMBLEHANDLERANDTONGSFOREXTRACTION
CUPS10
WTM
WLM OPERATIONV:1
V:2
V:3
V:4
V:5
PREPARATIONOFSAMPLE
STARTINGUP
EXTRACTION
SOLVENTRECOVERY,REMOVALOFTHIMBLES
ANDEXTRACTIONCUPS
SHUTDOWN
11
11
11
12
12
MAINTENANCE
ANDSERVICEVl:1
Vl:2
Vl:3
Vl:4
Vl:5
Vl:6
Vl:7
SERVICEUNIT13
WATERPUMP13
PRESSUREPUMP13
REPLACEMENTOFHEATINGELEMENT13
REPLACEMENTOFTHERMOSTAT15
REPLACEMENTOFCONDENSERS16
REPLACEMENTOFSEALINGMEMBRANE16
Vl:8REPLACEMENTOFRUBBERSLEEVEBETWEEN
CONDENSERANDEXTRACTIONCUP16
Vl:9.REPLACEMENTOFHOTPLATE18
VI:10REPLACEMENTOFFLATSPRING(HOTPLATE)18
Vl:11ADJUSTMENTOFSPACEBETWEENCONDENSER
ANDHOTPLATE18
TROUBLE-
SHOOTINGvil-1
SCHEMEVll:2FUNCTIONALTROUBLE-SHOOTINGSCHEME
METHODTROUBLE-SHOOTINGSCHEME19
19
ELECTRICAL
DIAGRAM
20
ACCESSORIES
ANDSPARE
PARTS
21
PROCEDUREAND
APPLICATION
NOTES
MANUALPARTNO1000-1540
INTRODUCTION
Crudefatisnormallydefinedaswhatcanbeextractedbyan
appropriateorganicsolvent— suchasdiethylether.Traditio-
nally,organicsolventfatextractionsforquantitativefatde-
terminationsarecarriedoutinSoxhletorrelatedextractors.
Althoughtimeconsumingandinvolvingthehandlingofex-
plosivesolventthesemethodsareuniversallyusedthanksto
goodaccuracyandreproducibility.
TheSOXTECSYSTEMisdesignedtoreplaceandimprovethe
traditional organicsolventmethods.Stillbasedonthetradi-
tionalSoxhletprocedurethepatenteddesignoftheSOXTEC
SYSTEMmakesitpossibletocarryouta quantitativedeter-
minationinonlya fractionofthetimeneededforthetraditio-
nalprocedures.Inadditiontothespeedoftheextraction,
specialattentionhasalsobeenpaidtomaketheSOXTEC
SYSTEMassafeaspossible.
TheSOXTECSYSTEMhastheflexibilitytocopewithmany
organicsolventextractiondemands.ThismakestheSOXTEC
aconvenientandversatileinstrumentwheneveritcomesto
quantitativesolventextractions, e.g.inthefood,feedand
chemical/pharmaceuticalindustriesaswellasinresearch
andofficiallaboratories.
Thesamplestobeanalysedareweighedintothimbles.Dur-
ingtheweighingthethimbleisconnectedtothethimble
adapterandplacedinthethimblesupportonthebalance.All
handlingofthethimblesisdonewiththethimblehandler.No
riskoffatcontaminationfromfingers.
DuringtheextractionintheExtractionUnitthefatisdissolved
inthesolvent.Aftercompletionofextractionthesolventis
evaporatedfromtheextractioncupintothecondenser.AM
fatfromthesampleisnowintheextractioncup.
TheServiceUnitprovideshotwaterforheatingupthehot
platesintheExtractionUnit.Theinsulatedtubingbetween
theServiceandExtractionUnits,makesitpossibletoplace
theServiceUnitina separateroom.Thisprovidesmaximum
safetywhenworkingwithdiethylether.IntheServiceUnit
thereisalsoa pumptogiveairflowintotheextractioncups
whenevaporatingthelastresidueofsolvent.
Forspecificmethodinformationpleaseaskforapplication
notes.
UNPACKINGANDCHECKING
UnpacktheSOXTECSYSTEManditsaccessorieswithcare.
Removeallpackingmaterial.Usethepackinglistinthisma-
nualortheoneyoufindpackedtogetherwiththeunit,and
checkthatyouhavereceivedallparts.Ifanypartismissing,
contactyourTecatorrepresentative.
PACKINGLIST
r
r
Partno.
1040-001
1040-002
1040-003
1040-011
1041-011
Quant.
1
1
1
2
1
1
1
3
1
2
1
1
3
3
1
1
1
3
1
1
3
1
2
1
1
2
1
1
2
1
Fig.pos.
A1
2
3
4
5
6
7
8
9
10
11
12
12
A13
14
15
16
12
12
A:11
2
3
A:21
2
3
4
Description
SoxtecSystemM6comprising:
1040-011ExtractionUnit
1041-011ServiceUnit
1000-1540Manual
SoxtecSystemM12comprising:
1040-011ExtractionUnit
1041-011ServiceUnit
1000-1461AssemblyKit
1000-1540Manual
SoxtecSystemM18comprising:
1040-011ExtractionUnit
1041-011ServiceUnit
1000-1461AssemblyKit
1000-1540Manual
ExtractionUnit,complete,comprising:
1040-012ExtractionUnit
1000-1462ExtractionCups(setof6)
1000-1431CupHolder
1000-1464Thimblesupport(setof7)
1000-1080Holderforthimblesupport
1522-0018Thimbles(setof25)
1000-1466ThimbleAdapters(setof6)
1000-1467ThimbleHandler
1529-0007Tongsforextractioncups
1000-1473ThimbleStand
1000-1476Tubing(08/11mm)
1569-0010Plasticstrips
1000-1469SparePartKitA
ServiceUnit,complete,comprising:
1041-012ServiceUnit
(208—240V,50/60Hz)
1000-1432Tubingforhotwater
1000-1477Tubingforair
1527-0019Lubricatingoii
1569-0009Plasticstrips
1000-1468SparePartKitB
SparePartKitA comprising:
1000-1420Sealingmembranes(setof6)
1000-1424Cylindricseals(setof6)
1569-0010Plasticstrips(setof10)
SparePartKitB comprising:
1577-0028Shaftsealing(waterpump)
1577-0014Membrane(pressurepump)
1542-0026Gasket(setof4 for
hotwatertubing)
1569-0009Plasticstrips(setof4)
Fig.A
Fig.A:1Fig.A:2
INSTALLATION
Placetheunitsona laboratorybench.Dependingonthesol-
ventyouaregoingtouse,theExtractionUnitmightbelocat-
edina fumecupboardseparatedfromtheServiceUnit.
Asanalternativethereisa connectionontherearoftheEx-
tractionUnitwhichcanbeconnectedviafiexibietubingtoa
ventilationfan.TheExtractionUnitmustbeplacedclosetoa
coldwatertapanddrainage.
111:1.CONNECTION
ConnectthePVC-tubing(08/11mm)forcoldwateraccording
tofig.B.
Connecttheinsulatedrubbertubingforhotwateraccording
tofig.B.Makesurethattherubbersealsareonplace.(Fig.C)
Itisenoughtofastentheconnectionbyhand.
TheServiceUnitmustbeplacedclosetoa wallsocket.Never
connectitwithoutwaterinthetank.Connectthehotwater
tubingfromtheExtractionUnitandthePVC-tubingforair.
Seefig.B.
IfnecessarytheExtractionUnitcanbeplacedfurtheraway
fromtheServiceUnit(standardlengthofthehotwatertubing
is3 m).Forthispurposethe1000-1460extensionkitshould
beused.
IfyouaregoingtoconnectanadditionalExtractionUnituse
the1000-1461assemblykit.
r
r
Fig.B
1.Coldwaterinletforcon-
densers(waterflow1—21/
min.)
2.Wateroutletfromconden-
sers
Hotwaterconnections:7 con-
nectedto3 and8 connected
to4
Airtubingconnection:6 con-
nectedto5
9.Electricalcable
12
6o
70
8O O93
O4
O O 5
o
Fig.C
Fig.D
WhentheExtractionUnitandServiceUnitareconnected,fill
distilled(ordeionized)waterintothetankintheServiceUnit
(Fig.D).Assoonastheelementinthetankiscoveredwith
water(ca2 I),plugintothewallsocket(208/240V,50/60Hz,10
A)andswitchon"MAINS".Openthevalve"HEATING"on
theExtractionUnittogetridofairinthehotplatesandtub-
ing.Fillmorewaterintothetank.Thewaterlevelshouldbea
fewcmbelowtheedgeofthetank.(ca4 I withoneExtraction
UnitandStandardtubings).
Fillabout50mlofthelubricantoil(1527-0019)intothetank
(thisisinordertoavoidunnecessarywearofthepump).
Thethermostatisadjustedtoabout90°Cwhentheequip-
mentisshippedtoyou.Ifyouwanta lowertemperature,use
asmallscrewdriverandturnthescrewonthethermostat
counterclock-wise.Fig.E.(Checktemperaturewitha thermo-
meterinthetank.)
Normalheating-uptimefromroomtemperatureto90°Cis
about15minutes(220V).Switchon"AIR"tocheckthatthe
airpumpisworking.
NOTE: Always run a blank with the new equipment to get rid
of deposits in the condensers.
Fig.E
FUNCTION
r
TheSOXTECSYSTEMcom-
prises:
—1040ExtractionUnit
—1041ServiceUnit
—ExtractionCups
—CupHolders
—Tongsforextractioncups
—ThimbleSupports
—Hoiderforthimblesup-
ports
—Thimbles
—ThimbleAdapters
—ThimbleHandler
—ThimbleStands
—Tubingforhotwaterand
air
IV:1.1040EXTRACTIONUNIT(Fig.F)
IntheExtractionUnitthefatextractionisdoneintwosteps.
Firstthethimblewithsampleisimmersedintheboilingsol-
vent.Mostofthefatnowdissolvesinthesolvent.Inthesec-
ondstagethethimbleisraisedabovethesolventsurfaceand
thefatresidueinthesampleiswashedoutbythesolvent
droppingfromthecondenser.
Aftertheextractiontheknobabovethecondenseristurned
clockwise.Thiswillclosetheoutletforcondensingsolvent.
Aftersomeminutesmostofthesolventiscollectedinthe
condenser.Thelastresidueofsolventisevaporatedwhen
theairvalveisopened.
IV:2.1041SERVICEUNIT
TheServiceUnitprovideshotwatertotheExtractionUnit
froma builtintank.Thethermostatinthetankisadjustable
fromtheoutsideoftheServiceUnit(Fig.E).Thehotwateris
pumpedfromtheServiceUnittothehotplatesintheExtrac-
tionUnit.ThepumpcanworkevenifthevalveontheExtrac-
tionUnitisclosed.
IntheServiceUnitthereisalsoa pumptogivetheairflowfor
evaporatingthesolvent.
IV:3.EXTRACTIONCUPSANDCUPHOLDER
Withthecuphoiderallsixextractioncupsarecarriedwith
onehandwheninsertingandremovingthemintheExtrac-
tionUnit,orwhenmovingthemtothebalance.Theextraction
cupsaremadeofaluminium.Neverplacetheextractioncups
ona dirtysurfaceduringanalysis.Thismightalterthetare
weight.Beforeusecheckthatthebottomsurfaceofthecups
isclean,otherwisetheheattransferfromthehotplatos
mightbedisturbedandresultinlongerboilingstarttime.
8
Explanationofsymbolsinfi-
gureF
1.Recoveryknob
2.Condenser
3.Extractionmodeknob
4.Sliderail
5.ExtractionCup
6.CupHoider
7.Hotplate
8.Airvalve
9.Hotwatervalve
10.Fasteningmechanism
11.Leverforfastening
mechanism
IV:4.THIMBLEANDTHIMBLEADAPTERS
Standardsizeofthimblesis0 26mmandlength60mm.
Thimbleadaptersforotherthimblesarealsoavailable(022
mm,length50mm;partno:1000-1486).
IV:5.THIMBLESUPPORTWITHHOLDERANDTHIMBLE
STAND
Sixthimblesupportsarefastenedintheholder.(Fig.G)This
combinationisusedtofixthethimbles(inthimbleadapters)
tothemagnetsinthecondensersoftheExtractionUnit.One
thimblesupportisusedonthebalancewhenweighing
sampleintothethimble.
Thethimblesareplacedinthethimblestandduringdrying.
IV:6.THIMBLEHANDLERANDTONGSFOREXTRACTION
CUPS
Toavoidfingerprintsonthimbles,thethimblehandleris
usedwhenmovinga thimblefromthebalancetothethimble
standorthethimblesupport.(Fig.H)Forthesamereasonthe
pairoftongsisusedwhenplacingextractioncupsina drying
ovenoradesiccator.
r
Fig.G
f
I
L
Fig.H
10
OPERATION
V:1.PREPARATIONOFSAMPLE
Samplesmustbegroundorhomogenizedbeforeweighedin-
tothethimbles.Sometypesofsamplese.g.meat,shouldbe
mixedwithsandorasbestos.Followthesameprocedureas
fortraditionalSoxhlet.
's.
Fig.I
m
fiSSüï
Fig.J
V:2.STARTINGUP
A)CheckwaterlevelintheServiceUnit(shouldbea fewcms
belowtheedgeofthetank).
b)PressMAINSbutton(switch-lampshouldlight).
c)OpentheleftvalveontheExtractionUnittoHEATING.
Thiswillallowthewatertocirculate.Normalheating-up
time(to90°C)isabout15minutes.
d)Opencoldwatertapfortherefluxcondensers.Theflow
rateshouldbeadjustedto1—2l/mintopreventlossof
solventfromthetopsofthecondensers.
V:3.EXTRACTION
a)Attachthimbletoadapter(Fig.I).
b)Weighsampleintothimble(thethimbleisplacedinthe
supportonthebalance).
c)Movethimbletothethimblestand.Usethimblehandler.
Thethimbleisreleasedwhenthehandlerispressed.Dryin
oven.
d)Afterdrying,putdefattedcottonplugabovethesample
andplacethimblesinthimblesupport(inholder).Use
thimblehandler.(Fig.J).
e)Insertthethimblesintothecondensers.Raisetheholder
sothatthesupportentersintothecondensers.Note,the
sixknobs(extractionmode)shouldbeintherinsingposi-
tion(Fig.K).
f)Moveeachextractionmodeknobuptoboilingposition.
Themagnetwillnowfastenthethimbleadapter.Return
theknobtorinsingposition,thethimblewillnowhang
justunderthemembraneinthecondenser.
g)Takeoutthethimblesupports.
h)Insertsixextractioncups,taredwithboilingchipsand
loadedwithabout50mlofthesolventtobeused(seepa-
raV.4.g).Usethecupholder.Lowerthehandleensuring
thatthesafetylatchengages.Thecupsarenowtighte-
nedtothecondensers(Fig.L).
i)Movetheextractionmodeknobsto"boiling".Thethimb-
leswillnowbeimmersedinthesolvent.
j)Openthevalve"HEATING"andboilwiththethimblesim-
mersed.(Timedependingonsampleandsolventtype.)
Makesurethattheknobsabovethecondensersareinup-
11
perposition(fullcounterclock-wise)sothattheconden-
singsolventcanrefluxbackintothecups(Fig.M).
k)MovetheextractionmodeknobstoRINSING.Thethimb-
leswillnowhangabovethesolventsurfaceandanyfat
residueswillberinsedout.
f
V:4.SOLVENTRECOVERY,REMOVALOFTHIMBLESAND
EXTRACTIONCUPS
a)Aftertherinsingperiodturntheknobabovetheconden-
serclock-wiseuntilthetubeentersa fewmmthroughthe
membrane.Thetubewilltightenandpreventtheconden-
singsolventflowingbackintotheextractioncup.
NOTE: If the tube is moved too f ar down it will stick to the
membrane when all the solvent is evaporated.
b)Whenalmostallsolventiscollectedinthecondenser
(about4—5minutesfor50mldiethylether),PressAIRbut-
tonontheServiceUnitandopenthevalveEVAPORATION
ontheExtractionUnit.Thelastresiduesofsolventwill
nowbecollectedinthecondensers.
NOTE: If the Service Unit is located in another room the
AIR pump can be on all day.
IftheEVAPORATIONairflowisusedearlierthetimefor
evaporatingthesolventwillbeshorterbutsomesolvent
willbelost.
c)ClosetheHEATINGandEVAPORATIONvalves.Release
theextractioncupswiththesafetyhook(Fig.N).Liftout
allsixcupswiththecupholder.
d)Placethimblesupports(inholder)ontothehotplatesand
lowerthehandlesothesupportsenterthecondensers.
e)Moveextractionmodeknobssothatthethimblesenter
thesupports.
f)Releasehandle,followtheupwardmovementwiththe
supportholder.Bendthesupportholder(Fig.O)andre-
movethethimbles.
g)Ifanotherextractionistobeperformedimmediately,in-
serta newbatchofthimblesandcups(paraV.3,e—h)
andopentherecoveryvalvesbytumingtheknobsabove
thecondenserscounterclockwise.
NOTE: If diethylether is used make it a rule to empty the
recovered solvent into a cup and check for peroxides be-
fore reusirfg.
NOTE: If recovered volume is too small, add more solvent
with a syringe in the small hole in the white ring on the
top of the condenser (50 ml leve! is just below lower edge
of frontpanel) (Fig. P).
V:5.SHUTDOWN
a)TurnoffMAlNS.
b)Turnoffcoldwatertap.
c)Checkthatallcondensersareemptiedofsolvent.Leave
theknobsabovethecondensersinupperposition(coun-
terclock-wise).
r
i
Fig.M
Fig.N
12
MAINTENANCEANDSERVICE
Vl:1.SERVICEUNIT(generalforallworkinsidetheService
Unit)
a)Takeoutelectricalplugfromwallsocket.
b)Unscrewthefourscrews(twooneachlongside)andlift
upthecover(Fig.Q andR,pos.2).
Vl:2.WATERPUMP
Ifthepumpleaks,theO-ringandshaftsealcanbereplaced
asfollows:
a)Emptythewatertank.
b)Loosenthescrewsonthetwotubingclamps.(Fig.R,pos.
1)-
c)Unscrewthenutsholdingthepumpmotor.(Fig.R,pos.3).
d)Takeavvaythepump.
e)Loosentheeightscrewsholdingthepumphousing.(Fig.
R,pos.18).
f)Removefrontpartofthepumphousing.(Fig.S,pos.1).
g)RemovetheoldO-ring.(Fig.S,pos.2).
h)Removethepumprotor(Fig.S,pos.3)bylooseningthe
centrescrew(notescrewclock-wise)(Fig.S,pos.4).
i)Loosenthefourscrewsholdingtherearpartofthepump
housingandremoveit(Fig.S,pos.5).
j)Unscrewthethreescrewsholdingtheshaftsealandre-
placetheseal(Fig.S,pos.6,7).
k)Assemblethepumphousingwitha newO-ring.
Fig.Q
Vl:3.PRESSUREPUMP
1)Toincreasetheairflowscrewclock-wiseontheplastic
screwonthesideoftheairpump(Fig.R,pos.8).
2)Replacementofmembrane:
a)Unscrewthenutholdingthepumpandliftitout.
b)Unscrewthescrewformembrane(Fig.R,pos.10).
c)Removetherubberbaseofthepumpandchangemem-
brane(Fig.R,pos.9).
d)Replacethebaseandfixthepumpintotheunit.
Vl:4.REPLACEMENTOFHEATINGELEMENT
a)Emptythewatertank.
b)Unscrewthenutholdingthetank(Fig.R,pos.11).
c)Loosenthescrewsonthetwotubingclampsonthetank
(Fig.R,pos.12).
d)Loosenthenutonthethermostatbody(Fig.R,pos.13).
e)Liftoutthetank,carefullyremovethethermostatbody
fromthetank.
13
14
Explanationofsymbolsin
Fig.R
1.Tubingclampscrews
2.Screwsforcover
3.Nutsholdingmotor
4.Capacitor
5.Thermostat
6.Thermostatbody
7.Airpump
8.Plasticscrewforadjust-
tingofairflow
9.Airpumpmembrane
10.Screwtobeunscrewed
beforechangingmem-
brane
11.Nutholdingwatertank
12.Screwsto be loosened
beforeremovingwater
tank
13.Nutforthermostatbody
14.Nutforheatingelement
15.Heatingelement
16.Cableconnectionon
thermostat
17.Nutforthermostat
18.Screwholdingwater
pumphousing
19.Watertank
f)Removethecableconnections.
g)Removethenutsholdingtheelement(Fig.R,pos.14).
h)Replacetheelement(Fig.R,pos.15).Makesurethatthe
sealingsareinsidethetank.
Vl:5.REPLACEMENTOFTHERMOSTAT
a)FollowtheprocedureVl:4,a—e.
b)
c)
d)
Disconnectthetwocablesonthethermostat.(Fig.R,pos.
16).
Removethenutonthethermostat.(Fig.R,pos.17).
ReplacethethermostatandreassembletheServiceUnit.
Fig.S
2.
3.
4.
5.
6.
7.
Explanationofsymbols
1.Frontpartofpumphou-
sing
O-ring
Pumprotor
Centrescrewtopumpro-
tor
Screwholdingrearpartof
pumphousing
Screwholdingtheshaft
seal
Shaftseal
15
Vl:6.REPLACEMENTOFCONDENSER(complete)
a)Raiseallextractionmodeknobstomiddlepositioninthe
orangearea.
b)Unscrewthethreescrewsholdingthefrontpaneland
gentlypullthepaneldown.Thesixslideswillcomeout
fromtheirplasticrails(Fig.T,pos.1).
c)Removethetwonutsfromthetopplate(Fig.T,pos.2).
d)Liftawaythetopplate.
e)Carefullyloosentheglasscondenserandpullitupuntil
itisclearoftheseal(thecondenserispresseddowninto
therubbersleeve).
f)DisconnectthePVC-tubing.
g)Replacethecondenser(Wettheglassbeforeputtingitin-
totherubbersleeve).
h)Assembleandruna blanktogetridofdeposits.
Vl:7.REPLACEMENTOFSEALINGMEMBRANE
a)Followtheprocedureforreplacementofcondenser(Vl:6,
a—d).
b)Liftawaytheknobontherecoverytube.Thetubemustbe
initsupperposition(Fig.U,pos.1).
c)Liftawaytheuppercondenserholderandeaseitoverthe
curvedtube.
d)Carefullyloosenthecondenser(seeVl:6e).Letthecon-
denserhangonitsPVC-tubings.
e)Slidetheflexiblewireintothecurvedtubesothatthe
magnetisfreebelowthecondenser(Fig.U,pos.3,5).
f)Pulloutthemagnetwithrodandflexiblewire.
g)Liftuprecoverytubethroughthecondenser(Fig.U,pos.
4).
h)Takeouttheoldmembrane.Toeliminatetheriskofbreak-
ingtheglasscondenser,thebestwayistocutthemem-
branewitha knifeora scalpel.
i)Putinthenewmembrane.Wetitwithwaterfirst.Pressit
inasfaraspossibleusingfingers.Forthelastpartusea
spatula.Themembranemustfitintothegrooveinthe
condenser.
j)Assemblethecondenserandputitbackinitsplace.Run
ablanktogetridofdeposits.
Vl:8.REPLACEMENTOFRUBBERSLEEVEBETWEENCON-
DENSERANDEXTRACTIONCUP
r
a)
b)
c)
d)
16
Loosenthecondenser.Followtheprocedureforreplace-
mentofcondenser(Vl:6,a—e).Letthecondenserhangin
thePVCtubings(Fig.V).
Pulldowntheoldsleeve.
Withdrawtheteflontubing.
Easeofftheguideringfromtherubbersleeveandputit
onthenewsleeve.Makesuretheholeintheringfitsover
theholeintherubbersleeve(Fig.W).
r
Explanationstosymbolsin
Fig.T
1.Screwsholdingthefront
panel.
2.Nutsholdingtopplate.
Fig.T
SBBP^'•"
Explanationofsymbols
Knobonrecoveryrod
Uppercondenserholder
Flexiblewire
Recoverytube
Curvedtube
Magnetwithholding
mechanism
Sealingmembrane
Plasticrailforslide
Slide
ExtractionmodeKnob.
L_17
e)Puttheteflontubingintothehole,soitentersabout1 mm
insidetherubbersleeve.Itmightbenecessarytousea
pintocleartheholeintherubberpart.
f)Putthenewsleeveonplaceandreplacethecondenser.
Runa blanktogetridofdeposits.
Vl:9.REPLACEMENTOFHOTPLATE(Fig.X)
IfdistilledordeionizedwaterisusedintheServiceUnitthere
willbenoproblemswiththehotplates.Ifforsomereasontap
waterisused,depositsinsidethehotplatecandisturbor
closethewaterflow.
r
Fig.X
Fig.X
1.Hotplate
2.Snapring
a)EmptythewatertankanddisconnectthehotwatertubingExplanationtosymbolsin
fromtheExtractionUnit.
b)Turntheapparatussoitisrestingontherearplate.
c)Removethetubingfromthehotplate.
d)Removethesnapring.(Springloaded).
e)Liftupthehotplate.
f)Putinthenewhotplate.Makesurethattheflatspringis
inplace.Replacethesnapringandconnectthetubing
again.
VI:10.REPLACEMENTOFFLATSPRING(HOTPLATE)
a)Removethehotplate(accordingtoVl:9,a—e).
b)Replacetheflatspring.
Vl:11.ADJUSTMENTOFSPACEBETWEENCONDENSER
ANDHOTPLATE
Insidethelowerpartoftheunittherearetwoadjusting
screws(Fig.Y,pos.1).Loosenthenutsandadjustthespace
sothattheextractioncupsarefirmlyfixed.
Fig.Y
Explanationofsymbolsin
Fig.Y
1.Adjustingscrews
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