8CI Maintenance
To Switch from the CI Source to the EI HES
7000/7010 Series TQ GC/MS Operating Manual 225
To Switch from the CI Source to the EI HES
Procedure
1 Vent the MS. (See “To Vent the MS” on page 124.) The software will prompt
you for the appropriate actions.
2 Open the left side access panel. (See “To Open Left Side Panel for Access to
the Analyzer Chambers” on page 119).
3 Open the analyzer chamber door. (See “To Open the Front Analyzer
Chamber” on page 156.)
4 Remove the CI source. (See “To Remove the 7010 Series CI Source” on page 221.)
5 Place the CI source in the storage container.
6 Remove the CI source radiator. The Radiator should not be removed or
installed with the CI source in place. (See “To Remove the CI Source
Radiator from the 7010 Series TQ” on page 227.)
7 Place the CI source radiator in the storage container.
8 Loosen the column nut and remove the column from the GC/MS Interface.
9 Cut the column on the tapered side of the ferrule to remove the ferrule.
10 Install the column into the GC/MS interface extending 4 to 5 mm past the analyzer
end of the transfer line. (See “To Install a Capillary Column in the GC/MS Interface
Using the Self-Tightening Column Nut” on page 37 or “To Install a Capillary
Column in the GC/MS Interface Using a Standard Column Nut” on page 42.)
11 Remove the EI HES radiator from the storage container.
12 Install the EI HES radiator. (See “To Install the EI HES Radiator” on page 214.)
13 Remove the EI HES from the storage container.
14 Install the EI HES. (See “To Install the EI HES” on page 185.)
15 Pumpdown the MS. (See “To Pumpdown the MS” on page 120.)
Always wear clean gloves while touching the analyzer or any other parts that
go inside the analyzer chamber.
Electrostatic discharges to analyzer components are conducted to the side
board where they can damage sensitive components. Wear a grounded
antistatic wrist strap, and take other antistatic precautions before you open the
analyzer chamber. (See “Electrostatic discharge” on page 151.)
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