Agilent Technologies 7890 Series - To Check for External Leaks

Checking for Leaks 7
Agilent 7890 Series Troubleshooting 129
To Check for External Leaks
Check for leaks at these connections:
• Gas supply bulkhead fittings
• Gas cylinder fitting
• Regulator fittings
• Traps
• Shut-off valves
• T-fittings
Perform a pressure drop test.
1 Turn off the GC.
2 Set the regulator pressure to 415 kPa (60 psi).