Introduction to Headspace and to the 7694 Headspace Sampler
The 7694 Headspace Sampler
9
Figure 2. Overview of the 7694 Headspace Sampler (from back of instrument)
Vial Tray (G1289/G1290)
The 44–sample vial tray is located on top of the unit to the left of the oven. The
tray is constructed of a flexible belt with dividers for each vial compartment.
Tray rotation is controlled via the keypad to assist filling the tray with
headspace vials. The tray can move forward and backward. When you use the
keypad to move the tray from position 1 to 44 (or from 44 to 1) the tray will
rotate completely. Adapters (part no. 300–305–HSP) are needed in the sample
tray when 10 ml vials are used.
Vial Transport Arm (G1289/G1290)
A robotic arm moves samples from the vial tray into the oven and back. Vials
are lifted from the tray, carried across the unit until centered above a port in
the oven, and then dropped into place. The rail supporting the robotic arm
swings away to allow access to the oven. Use the switch on the back of the
support rail to set the arm for either 10- or 20 ml vials.
G1289/G1290 G1883
Transfer line
Carrier gas in
Power switch
= On
O = Off
Vial pressurization
in
Transfer line
Vial
pressurization in
To Next Page
Loading...
Need help?
General
