240 Programmed Temperature Vaporization Inlet (PTV)
Replacement procedures
34 of 46
Jun 2001
Inlets
Agilent 6890 Gas Chromatograph Service Manual
Figure 240-22 Removing the septum head
4. Gently remove the septum head assembly from the inlet. Be careful not
to excessively bend the 1/16-inch lines. For best results, lift the head to
clear the inlet and then push it to either side to allow access.
5. To reinstall the septum head, gently align the head with the inlet and
manually engage the free-spinning nut to the inlet.
The nut should thread easily onto the inlet. If resistance is felt, unscrew
the nut and retry. Excessive force can irreparably damage the inlet.
6. Tighten the retaining nut 1/2 turn past finger tight.
7. If the carrier gas and septum purge lines were removed, reinstall them.
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