Tab Dialog Box:  
Valve (Agilent 7890 GC)
Specify the valves that are installed in the GC.
| Installed | Select the check box(es) for the installed valve(s). | 
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| Channel | Reports the number of the channel. A maximum of eight channels can be specified. | 
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| Name | Enter a name for the respective valve in the corresponding name field. | 
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| Type | Click the arrow to select the type of valve to be used: 
 You can install up to 8 valves. However, only one multi-position valve and two gas sampling valves are allowed in one system. 
 "Generic" valves have not been tested by Dionex. Limitations might be possible. | 
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| Inject Position | Select the inject position (Front Inlet or Back Inlet) of the gas sampling valve. A maximum of two gas sampling valves can be used. | 
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For installation details, refer to  Agilent 7890 GC: Installation.
 Agilent 7890 GC: Installation.