Introduction 1
Operating Guide 13
Automatic injectors
The optional Agilent 7693A automatic liquid sampler (ALS)
with a sample tray and bar code reader automates liquid
sample processing. The modular design allows the
autoinjector to be easily moved from one inlet to another or
from one GC to another. The modular design also permits
easy inlet maintenance.
The Agilent 7890A GC can accommodate up to two
autoinjectors, identified as Front Injector and Back Injector.
Automatic gas sampling valves
The sampling valves are simple mechanical devices that
introduce a sample of fixed size into the carrier gas stream.
Valves are most frequently used to sample gases or liquids in
constantly flowing streams.
The Agilent 7890A GC can accommodate up to two gas
sampling valves, identified as Valve # 1 and Valve #2.
Autoinjector
Sample Tray
Tur ret
(Bar code reader / mixer /
heater not visible)
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