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14
System User Guide
4500 Series of Instruments
RUO-IDV-05-0264-A
129 of 138
Troubleshooting
This appendix contains basic information for troubleshooting basic system issues. Certain
activities may be carried out by the AB SCIEX trained Qualified Maintenance Person (QMP) in
the laboratory. For advanced troubleshooting, contact an FSE.
For sales, technical assistance or service, contact an FSE or visit the AB SCIEX web site at
www.absciex.com
for contact information.
Table 14-1 System Issues
Symptom
Possible Cause
Corrective Action
Sensitivity loss
Instrument or ion source
requires tuning and optimizing
For more information, refer to:
•
• Ion source
Operator Guide
• Analyst
®
software Help
system
Dirty curtain plate
Dirty orifice plate
Clean the Front of the Orifice
Dirty QJet
®
ion guide, Q0 or
IQ0
Contact an FSE or the local
Qualified Maintenance Person.
Frequent or extreme
contamination of the QJet ion
guide
Curtain Gas™ flow rate is too
low.
Verify, and if applicable,
increase the Curtain Gas flow
rate.
Low vacuum pressure
Low roughing pump oil level.
Check the roughing pump oil
level, and add oil if necessary.
Contact an FSE or the local
Qualified Maintenance Person.
Summary of Contents for QTRAP 4500 LC/MS/MS system
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