Step Commands - Agilent Technologies InfinityLab LC Series User Manual

Step Commands

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 15
Step
Valve Bypass
Piston Home
Needle Up
Vial to Seat
Needle into Sample
Draw
Agilent InfinityLab LC Series Vialsamplers 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.
Lowers the needle into the sample.
Metering device draws the defined
injection volume.
Troubleshooting and Diagnostics

Step Commands

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.
Command also positions the
vial at the seat, and lifts the
needle to the upper position.
Command also positions the
vial at the seat, lifts the
needle, and lowers the needle
into vial. Command can be
done more than once
(maximum draw volume of
100 µL cannot be exceeded).
Use Plunger Home to reset
the metering device.
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