7
Diagnostics and Troubleshooting
Troubleshooting
116 TSQ Quantum XLS Series User Guide Thermo Scientific
Issue: Acquisition does
not begin as expected.
Possible causes/solutions
• The start mode is not properly configured. Verify that the instrument is configured
properly. Refer to the Xcalibur Help for more information.
• The mass spectrometer Instrument Setup file has incorrect settings. Check the start time
in the Instrument Setup file.
• The forepressure is too high due to the solvent peak. Reduce injection volume or extend
the filament/multiplier delay time until after solvent peak.
• The remote start cable to the GC is disconnected. Connect the remote start cable.
• The GC did not start. Verify GC instrument method and configuration. Verify the
connection between the autosampler and GC.
• The autosampler did not start. Verify autosampler instrument method and configuration.
Verify that the sample is present.
• The heated zone stipend is not attained. See “Heated Zone Issues” on page 120.
Issue: Acquisition
terminates
unexpectedly.
Possible causes/solutions
• The end run time in the TSQ Quantum XLS Series instrument method is incorrect.
Check the instrument method for the GC and the MS.
• The data system is out of disk space. Check disk space; back up and remove files.
Issue: Unable to
initialize the gas
chromatograph.
Possible causes/solutions
• The GC is not turned on. Turn on the GC.
• The GC is not configured properly in the Xcalibur data system. Check Instrument
Configuration.
• The cable between COM1 and GC is disconnected. Verify connection.
• COM1 is not configured properly. Verify COM port configuration.
Issue: Unable to
download methods to
the gas chromatograph.
Possible causes/solutions
• There is a discrepancy between the instrument method and configuration. Verify
consistency between method and instrument configuration.
• COM1 is not configured properly. Verify COM port configuration.
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