30 User Information
Introduction to Headspace and to the G1888 Network Headspace Sampler
The Headspace Sampler is made up of the following
components:
Oven
The oven contains a circular aluminum sample carousel that
holds up to twelve 10-mL or 20-mL sample vials. A resistance
band heater heats the oven. A motor–driven fan in the center of
the carousel circulates the air to maintain constant and uniform
temperature. The carousel can shake at two speeds to help
components elute into the headspace quicker. Mechanical rods
move vials down into the oven and up to the needle for
extraction.
Figure 2 Overview of the G1888 Network Headspace Sampler (from the back of the instrument)
Transfer line
Power switch
Vial pressurization in
Carrier gas in
Vent
LAN port
Power cord
Remote port
RS232 port
Pressure regulator
manual adjust
Flow controller
manual adjust
medium_standard.book Page 30 Tuesday, February 17, 2004 10:14 AM
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