Agilent Technologies 5975C TAD VL MSD Troubleshooting And Maintenance Manual page 36

2
General Troubleshooting
Baseline wanders
• Insufficient carrier gas supply pressure*
• Malfunctioning flow or pressure regulator*
• Intermittent leak in the GC inlet*
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*
36
* These could cause a fault condition in the GC that would prevent the GC
from operating.
* This could cause a fault condition in the GC that would prevent the GC
from operating.
5975 Series MSD Troubleshooting and Maintenance Manual