Agilent Technologies 7890A - To Check for External Leaks

Checking for Leaks 7
Troubleshooting 87
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).