Operating in Electron Impact (EI) Mode 3
5975 Series MSD Operation Manual for MassHunter 69
To Set Analyzer Temperatures from the Instrument Control View
Setpoints for the MSD ion source and mass filter (quad) temperatures are
stored in the current tune (*.u) file. When a method is loaded, the setpoints in
the tune file associated with that method are downloaded automatically.
Procedure
1 In Instrument Control view, select MS Temperatures from the Instrument menu.
2 Enter the MS Source and MS Quad (mass filter) temperatures in the Setpoint
and Limit fields. See Table 12.
The GC/MSD interface, ion source, and quadrupole heated zones interact.
The analyzer heaters may not be able to accurately control temperatures if
the setpoint for one zone is much different from that of an adjacent zone.
Table 12 Recommended temperature settings
EI operation PCI operation NCI operation
MS Source 230 250 150
MS Quad 150 150 150
CAUTION
Do not exceed 200 °C for the quadrupole or 350 °C for the source.
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