Buchi Rotavapo R-100 Uživatelský manuál Strana 39

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BÜCHILabortechnikAG Cleaningandservicing|7
OperationManualRotavapor®R100 39/60
7 Cleaningandservicing
NOTE
Usersmayonlycarryouttheservicingandcleaningoperationsdescribedinthissec
tion.
Anyservicingandrepairworkwhichinvolvesopeningupthehousingmayonlybe
carriedoutbyBUCHIservicetechnicians.
u UseonlygenuineBUCHIconsumablesandsparepartsinordertoensurecorrect
operationofthedeviceandpreservethewarranty.
u .
7.1 Inspectingandcleaningthevaporduct
u Switchoffthedevice.
u Removetheevaporatingflask(seeChapter6.3.1"Removingtheevaporating
flask",page37).
u Pressthelockreleasebutton(1)onthefrontoftherotarydriveunit.
u Firmlyholdthevaporductandturnthecombiclip(2)clockwiseuntilthevaporduct
isreleased.
u Visuallyinspectthevaporductfordamage,wearmarksandresidues.
u Cleanthevaporductwithapapertowelandwaterorethanol.
u Refitthevaporduct(seeChapter5.3"Fittingthevaporductandcondenser",page
22).
7.2 Checkingthesystemforleaks
Precondition:
R Anexternalvacuumpumpwithapressuregaugeisconnected.
u Makesurethatallflasksarefittedandtheglassstopcockisclosed.
u ConnectthevacuumpumpandevacuatetheR100toapressureof50mbar.
u Switchoffthevacuumpump.Ifnecessary,disconnectthevacuumtubingsoasto
excludethevacuumpumpasapossiblesourceofaleak.
u Checkthepressureafteroneminute.
5 Ifthepressurehasrisenbylessthan3mbarafteroneminute,thesystemisair
tight.
Ifthesystemisnotairtight:
u Checkallseals(seeChapter7.3"Checkingseals",page40).
u Examinealltubingandreplaceiftheyarebrittleorcracked.
u Greasegroundglassjointsifnecessary.
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