78 5977B Series MSD Operating Manual
3 Intuvo 9000 GC Column Maintenance
The 9000 GC/MS Tail is heated by an electric cartridge heater. The heater is
powered and controlled by a heated zone of the 9000 GC. The 9000 GC/MS Tail
temperature can be set from the Agilent MassHunter GC/MS Acquisition
software or from the GC. A sensor (thermocouple) in the interface monitors
the temperature.
The transfer line tip seal assembly is required when using the EI XTR source
or the HES.
The 9000 GC/MS Tail should be operated in the 250 to 350 C range. Subject
to that restriction, the transfer line temperature should be slightly higher than
the column temperature, but never higher than the maximum column
temperature.
Figure 19 The GC/MS Interface for a 9000 GC (not to scale)
Ionization
chamber
Analyzer
chamber
Heater/Sensor
assembly
GC enclosure
Heater sleeve
Insulation
9000 GC/MS Tail
Tip seal
assembly
Column guide tube
Ion source
MS Tail Heater assembly and
nut and ferrule not shown
MS enclosure
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