Buchi PrepChrom C-700 Manual do Utilizador descarregar pdf (Página 87)

BÜCHILabortechnikAG Maintenance|7

PrepChromC700 87/110

7 Maintenance

WARNING

Riskofhandinjury.

Movingpartse.g.pulleyorabeltcancauseserioushandinjuries.

u Donotopenorremovecoverswhicharenotdescribedinthismanual.

u Switchofthedevicebeforeopeningcovers.

7.1 Maintenanceplan

Thefrequencyofthemaintenanceactivitiesdependsonthenatureoftheappli

cation(thesolventsused,thequantityofthemobilephasedeliveredbythe

pump,thelevelofcleanlinessofthefacility,etc...).

Operation Frequency

General

Verifythecleanlinessofallliquidbot

tles.

Daily

Checkthesuitabletighteningoffittings

andtheproperstateoftubing(not

bended).

Weekly(orwheninaccuracyflowrates,

solventsleaksorairbubblesareob

served)

Cleantheinjectionvalvesandallparts

incontactwithsolventsorsamples

withsuitablesolutions.Rinseabun

dantlyusingamixingofwaterandal

cohol.

Asoftenaspossible(speciallyafter

havingpumpedaqueoussolventsor

strongbuffers)

Checkthetangentialfansworkingto

maintainagoodairrecyclinginsidethe

differentmodules.

Monthly

Pump

Replacethetubingandassociatedfit

tings.

Yearly(orwhendamagedpartsareob

served)

Cleanandrinsethegradientvalvewith

suitablesolution.

Asoftenaspossible(speciallyafter

havingpumpedaqueoussolventsor

strongbuffers)

Cleanthecheckvalves. Quarterly

Replacethecheckvalves. Yearly(orwhenabnormalpressure/

flowratefluctuationornoisybaseline

areobserved)

Detector

UVDetectorlampreplacement. Whentheefficiencyofthelampisun

reliable

Cleantheflowcell. Quarterly

7.2 Cleaning

7.2.1 6wayelectricalvalve,cleaning

u Switchonthesystem.

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