Agilent Technologies 7820A

7820A GC Installation Guide
7820A GC Installation Manual 15
4 Set the gas source pressures.
Figure 6 Proper plumbing configuration for instrument checkout (uECD)
Helium carrier
uECD
Nitrogen anode purge and makeup
Gas Recommended Maximum
Helium 400 kPa (60 psi) 690 kPa (100 psi)
Hydrogen 400 kPa (60 psi) 690 kPa (100 psi)
Air 550 kPa (80 psi) 690 kPa (100 psi)
Nitrogen 400 kPa (60 psi) 690 kPa (100 psi)