Injector Steps - Agilent Technologies 1220 Infinity II LC User Manual

Start
End
Arm Position
Move Arm Home
Park Arm

Injector Steps

Each movement of the sampling sequence can be done under manual control.
This is useful during troubleshooting, where close observation of each of the
sampling steps is required to confirm a specific failure mode or verify
successful completion of a repair.
Each injector step command actually consists of a series of individual
commands that move the autosampler components to predefined positions,
enabling the specific step to be done.
Table 33
Step
Valve Bypass
Piston Home
Needle Up
Vial to Seat
1220 Infinity II LC System User Manual
Injector step commands
Action
Switches injection valve to the bypass
position.
Moves the piston to the home
position.
Lifts the needle arm to the upper
position.
Moves the selected vial to the seat
position.
Test Functions and Calibration
moves the gripper to the front of the
sample-tray area.
repositions the gripper at the home position.
Moves the gripper arm to its home position for
better access and exchange of trays.
Secures the gripper arm to the park position
behind the sampling unit. Before parking the
gripper arm, ensure there is no vial in the
gripper.
Comments
Command also switches the
valve to bypass if it is not
already in that position.
Command also lifts the
needle to the upper position.
9
Autosampler
155