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Inlet Systems
Packed column inlet
Assuming the system to be leak•free(and if total flow is < 200 ml/min),
after setting the desired column flow rate, total flow through the system
should be noted via the EFS.
The original column flow rate is reestablished simply by adjusting the
mass flow controller so the original total system flow rate value is
displayed again.
Septum-purged packed column inlet
The septum•purgedpacked column inlet may be used with HP Series
¿
530
Additionally, on•columninjection is possible with 1/4•inchglass packed
columns.
The septum•purgedinlet provides superior reproducibility and
quantitative accuracy at high inlet temperatures (250 to 400 ^ C).
Figure 6-3
Trap(s)
Carrier
Gas
Septum
Purge
Vent
Flow Diagram, Septum-Purged Packed Column Inlet
capillary columns, metal packed or glass packed columns.
External
Internal
Plumbing
Plumbing
Mass
Flow
Controller
Restrictor
Pressure
Gauge
Electronic
Flow Sensor
(optional)
Forward
Pressure Regulator
Out
In
Fixed
Septum Purge
Packed Column
Inlet
To
Detector
Column
103
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Troubleshooting
