Injection Port/Switching Valve (Gilson XL Series)

Tab Dialog Box:
Inject Port/Switching Valve (Gilson XL Series)

The autosamplers of the XL-series can operate two motorized switching valves. The first valve (Inject Port) is intended for injection. The second valve (Switching Valve) is usually not connected, but can also be used for injection, for example, with an additional injection loop, after correct installation.

Installed	Select Installed if the corresponding motorized switching valve is installed.

Name:	Here, you can change the name of the motorized switching valve. Under normal circumstances, you should not alter the preset name.

Injection Loop	Select this check box if you work with an injection loop.

Loop Volume:	Enter the volume of the injection loop.

X, Y, Z:	Enter the coordinates of the motorized switching valve.

For the Gilson 233XL autosampler, the second injection port is pre-installed. The driver supports all of these combinations. Thus, numerous options are available. Under normal circumstances, the following settings are sufficient:

For the Gilson 231XL sampler, no settings are required in addition to the loop volume.
For the large Gilson 232XL and 233XL samplers, change the X-coordinate on the Inject Port tab page to 378.0. Enter the loop volume.
The Gilson 233XL sampler is fitted with a second injection port. Enable the Injection Loop option on the Switching Valve tab page. Enter a meaningful name, the loop volume, and the exact coordinates.
For the Gilson 221XL and 222XL samplers, disable the Injection Loop option.

Settings on the Aspec XL autosampler

Injection Port		Switching Valve
Injection Loop	Enabled	Injection Loop	Enabled
Loop Volume	100 µl	Loop Volume	5 µl
X	387.0	X	247.0
Y	46.7	Y	46.7
Z	56.0	Z	56.0

Caution:

With the Aspec XL autosampler, the Z coordinates vary, depending on the needle type used. Check the settings, using a non-fixed needle, before using the Aspec XL for standard operation. Incorrect settings may damage the Aspec XL hardware. The following needle has been tested: Constricting needle, 183 mm stroke (Gilson reference nos. 460969 and 460973) (needle length 220 mm). When you use this needle for the ASPECXL.gty tray file, enter 56.0 mm for the Z coordinate.

For more information, refer to Gilson XL Autosampler Series (221XL, 222XL, 231XL to 235XL, Aspec XL).