General Troubleshooting 2
5977B Series MSD Troubleshooting and Maintenance Manual 43
Baseline wanders
• Insufficient carrier gas supply pressure
†
• Malfunctioning flow or pressure regulator
†
• Intermittent leak in the GC inlet
†
† These could cause a fault condition in the GC that would prevent the GC
from operating.
Retention times for all peaks drift – shorter
• Column has been shortened
• Initial oven temperature was increased
• Column is getting old
Retention times for all peaks drift – longer
• Column flow has been reduced
• Initial oven temperature was decreased
• Active sites in the sample path
• Leaks in the GC inlet
†
† This could cause a fault condition in the GC that would prevent the GC
from operating.
To Next Page
Loading...
Need help?
General
