Manual

BÜCHILabortechnikAG Troubleshooting|8
UltrasonicController 35/46
8 Troubleshooting
8.1 Customerservice
Onlyauthorizedservicepersonnelareallowedtoperformrepairworkonthede
vicewhichisnotdescribedinthismanual.Authorizationrequirescomprehen
sivetechnicaltrainingandknowledgeofpossibledangerswhichmightarise
whenworkingonthedevice.Suchtrainingandknowledgecanonlybeprovided
byBUCHI.
Ifmalfunctionsofthedeviceoccurorfortechnicalquestionsorapplicationprob
lems,contactoneofouroffices.
Thecustomerserviceandsupportoffersthefollowingsupport:
• Sparepartdelivery
• Repairs
• Technicaladvice
AddressesofofficialBUCHIcustomerserviceofficesaregivenontheBUCHI
website.
www.buchi.com
8.2 Faults
8.2.1 Nozzledoesnotatomize
1. Checkifallelectricalconnectionsareproperlyinstalled.
2. Checkthenozzlepowersettingonthecontroller.
• Makesurethatasufficientsettingisused.
3. Checktheperistalticpumpisworkingproperly.
4. Checkallconnectionsoftheliquidfeedingline.
• Insufficientliquidsupplycancauseahightemperaturetobuilduponthe
nozzle.
8.2.2 Noliquiddelivery
1. Checktheconditionofthetubeusedintheperistalticpump.
• Replaceawornouttube.
2. Adjusttheperistalticpump.
8.2.3 Liquidemergesunatomized
1. Checkthemaximumflowrateiswithintheratednozzlecapacity.
• 3.4 Technical data, peristaltic pump ﴾B‐290﴿ [} page15]
2. Checkthefeedviscosityandparticlesizeoftheslurryarewithinthespeci
fications.
• 3.2 Technical data, general [} page15]
3. Turnofftheperistalticpump.
4. SwitchtheUltrasonicControlleron/offfor5timestogettheliquidoutof
theultrasonicnozzle,orusethedamperbysqueezingit.
5. Setthecorrectatomizationpower/stallpoint.
• 6.1 Stall point, determination [} page31]