User guide

Checking for Leaks 6
Advanced User Guide 143
• ECD/TCD Detector plug (part no. 5060- 9055)
2 Load the inlet maintenance method and wait for the GC to
become ready.
3 Remove the column, if installed.
4 Plug the column fitting with a column nut and a no- hole
ferrule.
5 If using the septum head, and the quality of the septum (or
Microseal) and GRAPHPACK- 3D ferrule on the glass liner
are unknown, replace them now. See To change the septum
on the PTV inlet and To change the liner on the PTV inlet.
6 Set the inlet to Split Mode.
7 Configure the column as 0 length.
8 Set the inlet temperature to 100 °C.
9 Set the Total flow to 60 mL/min.
10 Enter a pressure setpoint of 25 psi (172 kPa). Make sure that
the pressure supplied to the GC is at least 10 psi (70 kPa)
higher than the inlet pressure.
11 If pressure cannot be achieved, there is either a large leak or
the supply pressure is too low.
12 Set the Septum purge flow to 3.0 mL/min.
13 Cap the septum purge fitting with the ECD/TCD detector
plug.