Agilent Technologies 5975T LTM GC/MSD, Troubleshooting And Maintenance Manual

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106 Troubleshooting and Maintenance Guide
9
Troubleshooting Tasks
To Measure a Split Vent or Septum Purge Flow
Note that the GC reports flows calibrated to 25 °C and
1 atmosphere. Correct flowmeter results accordingly.
Septum purge and split vent flows exit through the pneumatic
module at the top rear of the instrument. See
Figure 4 .
To measure split vent or septum purge flows, attach the
flowmeter to the appropriate tube.
WA R N I N G
Hydrogen (H
2
) is flammable and is an explosion hazard when
mixed with air in an enclosed space (for example, a flow meter).
Purge flowmeters with inert gas as needed. Always measure
gases individually.
Figure 4 Top rear view of the instrument