Installation 1
Installation and First Startup 9
Determine how you will connect the headspace sampler to the GC
How you connect the headspace sampler to the GC depends
on:
• The GC model
• The GC inlet type
• Optional HS accessories
• Whether or not you need to also use this same GC inlet
for other injection types (ALS or manual, for example)
See Table 3. Determine the connection best suited to your
hardware and needs.
Table 3 Supported headspace sampler–GC connections and control modes
Inlet type GC models Connection type Supports HS
carrier mode(s)
Comments
Recommended configurations
Split/
splitless,
Multimode
7890, 7820,
6890, 6850,
5975T
Transfer line through
septum head
• GC controls
carrier flow
• GC + HS
(additive)*
• Standard configuration.
• Can be disconnected to support
autosampler or manual injection.
• With GC control of carrier flow, HS must be
On for non-HS injections.
• Supports frequent column changes.
Optional hardware:
• G4562A Carrier Gas EPC Module
Accessory.
• G3521A 7890A S/SL MMI Weldment for
Headspace
(7890A, 5975T only).
* Requires G4562A Carrier Gas EPC Module Accessory
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