Agilent Technologies 1290 Infinity User Manual page 27

The following Syringe items may be changed by selecting the particular item:
Table 3
Item
Actual ID
Fill Volume
Fill Strokes
Pullup Del
Fill Speed
Eject Speed
Inject Speed
Plunger Chnge Pos
Agilent 1290 Infinity LC Injectors HTC/HTS User Manual
Syringe Items
Description
Indicates the identification number (ID) of the currently inserted syringe. If
the syringe detection system is set to manual, the message Syringe: No
syringe is displayed.
This parameter serves to control the filling of the syringe. It can occur that
air bubbles remain below the plunger after the first pull up. If the plunger is
moved up and down several times (see Fill Strokes), these air bubbles are
worked out. With this operation the syringe can be completely filled even
when using very small sample volumes.
Number of fill strokes. All fill strokes, except the last one, use the selected
fill volume. If the selected sample volume is higher than the fill volume, the
sample volume is used for all fill strokes. If zero is selected the plunger is
pulled up only once using the sample volume value.
By using this item, a delay time can be selected between sample pullup and
ejection while filling the syringe. When the plunger reaches the zero
position during the fill strokes, the system waits half the Pullup Del time.
This allows for an air bubble to float away from the needle tip. This feature
is especially useful for removing any air bubble in the syringe and handling
viscous fluids.
Speed of plunger movement used in all syringe filling operations.
Speed of plunger movement used in all syringe eject operations except
sample injection.
Speed of plunger movement for sample injection. Typically used for Fill
Strokes.
Plunger position during Change Syringe operation. The syringe plunger is
moved to a position where the syringe can be removed and replaced. The
value may be changed for different types of syringes.
LC Injector HTC/HTS Operating Instructions
2
Utility Functions
27