Buchi Rotavapo R-100 Manual do Utilizador descarregar pdf (Página 39)

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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Buchi Rotavapo R-100 Manual do Utilizador Página 39