Sequence Actions; Types Of Sequence Issues Handled - Agilent Technologies 7697A Advanced Operation Manual

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Method Development

Sequence Actions

Types of sequence issues handled

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The 7697A HS provides logical control over certain types of
HS or GC errors that can occur when handling sample vials
for a run or a sequence of runs. This control is provides
through the Sequence action parameters. These parameters
provide the flexibility to handle relatively minor issues with
the level of attention appropriate for your workflow. You can
completely halt sequence processing for some issues, while
permitting the sequence to continue for other issues. The HS
always logs the issue and the action taken.
Sequence Actions provides logical sequence control for the
issues listed below. The available actions are described in
"Available actions".
Vial missing: Control the HS behavior whenever it cannot find
a sample vial, for example, if the HS cannot find a vial in
the tray. A misplaced vial, a hardware problem, or a
problem in the sequence, for example, can cause a missing
vial issue.
Wrong vial size: Control the HS behavior when the HS finds a
sample vial, but the size of the vial does not match the size
of the vial as defined in the method. A size mismatch can
change the analysis results or indicate a misplaced vial, for
example. (Note that the HS uses height to determine vial
size, so it cannot distinguish between 20 mL and 22 mL
vials.) The HS measures the vial height when the vial is in
the gripper for the 111 vial model, and when raising the vial
onto the sample probe for the 12 vial model.
Check for ready: When the HS becomes Ready, it checks if the
GC is Ready. If the GC is not ready for a new injection, the
HS follows the specified action. This problem could indicate
a low GC cycle time parameter in the method, normal
variances in GC timing, or a GC problem. Note that some
data systems may not collect data if the GC is not Ready
before the run starts. (In this case, do not use Continue as
the sequence action.)
Wrong chiller temp: Available only if using an optional tray
chiller accessory. Control what to do if the tray temperature
goes out of range.
Dynamic leak test: Press [On/Yes] to enable dynamic leak
checking. If enabled, the Acceptable leak rate field appears.
Advanced Operation