Agilent Technologies 7890A Troubleshooting Manual page 97

Troubleshooting
• The split vent has a 1/8- in Swagelok threaded fitting.
Create and use a 1/8- in tube adapter (as shown below) to
convert the 1/8- in threaded fitting into a 1/8- in tube.
This prevents the rubber flowmeter tubing from leaking
around the threads, which will result in leakage and thus
an incorrect flow reading.
• The septum purge is a 1/8- in tube. Use the red rubber
adapter shown to measure flows.
Troubleshooting Tasks
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