Tcd Gas Pressures - Agilent Technologies 7820A Advanced User's Manual

5
Detectors
Ratio of reference flow to
column + makeup flow

TCD gas pressures

Reference gas flow, mL/min
Pressure (psig)
74
4.0
3.0
2.0
1.0
0
10
Choose a flow, find a pressure, set source pressure 10 psi
(70 kPa) higher.
4
3
2
1
10 20
69 138
(
kPa)
20 30
Column + makeup flow, mL/min
Hydrogen
Helium
Nitrogen
30 40
207 276
40 50 60
50 60
345 414
Advanced User Guide