
BÜCHILabortechnikAG Troubleshooting|8
PrepChromC700 97/110
8 Troubleshooting
8.1 Customerservice
Onlyauthorizedservicepersonnelareallowedtoperformrepairworkonthede
vicewhichisnotdescribedinthismanual.Authorizationrequiresacomprehen
sivetechnicaltrainingandknowledgeofpossibledangerswhichmightarise
whenworkingatthedevice.Suchtrainingandknowledgecanonlybeprovided
byBUCHI.
Thecustomerserviceandsupportoffersthefollowingsupport:
• Sparepartdelivery
• Repairs
• Technicaladvice
AddressesofofficialBUCHIcustomerserviceofficescanbefoundonthe
BUCHIwebsite.
www.buchi.com
8.2 Faults
8.2.1 Detector
8.2.1.1 Highnoiselevelordecreasedsensitivity
u Cleantheflowcell.
• 7.2.2 Flow cell, cleaning [} page88]
u Checkthenoiselevelandsensitivity.
Results
u ThenoiselevelandsensitivityareOK:
• Taskfinished.
u ThenoiselevelandsensitivityarenotOK:
• TheUVDetectorlampneedstocheckedbyaBUCHIrepresentativeof
thecustomerservice.
• 8.1 Customer service [} page97]
8.2.2 Pump
8.2.2.1 Pumpnoiseorpressurefluctuation
u Cleanthecheckvalves.
• 7.2.3 Check valve, cleaning [} page89]
Results
u Nopumpnoiseorpressurefluctuation:
• Taskfinished.
u Pumpnoiseorpressurefluctuationstilloccurs:
• 7.3.5 Check valve,replacement [} page94]
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