Hs Control; Gc + Hs Control - Agilent Technologies 7697A Advanced Operation Manual

HS Control

GC + HS Control

Advanced Operation
Requires the optional 7697A Carrier Gas EPC Module
Accessory.
Select HS Control mode to enable HS control of the carrier gas
flow. In this installation, a source of carrier gas is plumbed
to the HS Carrier fitting. See
of the carrier gas for the GC.
Any methods used when configured in this mode must
include:
• The column flow or pressure program
• GC thermal program information
• A selection for the control mode (flow or pressure)
When in this mode, you must enter the GC column
dimensions in the HS so that the HS can provide the correct
flows or pressures during GC thermal programming.
Requires the optional 7697A Carrier Gas EPC Module
Accessory.
Select GC + HS Control mode to inject samples using an
additive flow. In this case, the GC maintains and uses its
own carrier gas supply. The HS uses its own carrier gas
supply. To inject the sample, the HS provides an additional
flow into the GC inlet.
Any methods used when configured in this mode must
include the additive flow rate.
Selecting this mode enables the Gas Saver configuration
setting for additive flow.
Configuration
Figure 15. The HS provides all
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