Agilent Technologies 1290 Infinity User Manual page 128

3
LC Injector HTC/HTS Description and Installation
Special Functions
System
The following System Items can be changed by selecting the particular item.
Beginning with Firmware Level 4.1.X, an intermediate step was added. After
selecting System, the new Settings level follows. Activating Settings opens up the
described Items below.
Item
Syr Detect
Start Ref
Stop XY Error
PlgPathCheck
PlgChnge Pos
128
Description
The syringe detection can be turned off in cases of sensor failure or if a
special syringe with unknown ID is installed.
Turning OFF the syringe identification sensor automatically displays a
dialog box enabling the selection of syringe identification manually.
This item provides the choice of referencing all axes at the start of the
system or suppressing the referencing. It is advisable to use this function
actively to detect a possible loss of steps.
This function allows turning off the automatic recovery of the system after
detection of a collision (loss of steps of a stepper motor).
Stop XY Error = ON: Automated recovery turned OFF
Stop XY Error = OFF: Automated recovery turned ON
In Firmware level 2.3.X the new feature that recovers automatically after
detecting a collision has been implemented. Firmware level 2.6.2 provides
the possibility of disabling automated recovery. If recovery is turned OFF,
the system always checks its position before moving to the injection port
for injection. This can lead to an extra move, crossing over the X-,Y-axes
sensors – if the injection port is at the opposite end of the X-axis relative to
the sample location, (zero X-axis position in-between sample location and
injection port).
For critical application fields, e.g. clinical analyses, it is advisable to turn off
the automated recovery; Stop XY Error= ON.
1 The plunger travel path is monitored to ensure that the plunger tip reaches
the syringe zero point in all cases – compared to original plunger
referencing and defining the syringe zero point.
If an error is detected, the System stops operation.
This feature is useful if sample solutions with particles need to be handled,
or if the syringe type is not adequate for the solution composition, or if the
syringe plunger is blocked or even bent, such an error will be recognized
and the system will come to an emergency stop.
Changing a syringe using the Menu function Chnge Syr moves the plunger
up to the position specified by this item. For normal use, accept the default
values.
Agilent 1290 Infinity LC Injectors HTC/HTS User Manual