Installation manual

Operating in Electron Impact (EI) Mode 3
5975 Series MSD Operation Manual 67
To set the MSD analyzer temperatures
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 Edit Tune Parameters from the Instrument
menu.
2 Select Temperatures from the MoreParams menu (Figure 15).
3 Type the desired Source and Quad (mass filter) temperatures in the
setpoint fields. See Table 12 for recommended setpoints.
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.
Figure 15 Setting temperatures
WARNING
Do not exceed 200 °C for the quadrupole or 350 °C for the source.