Step Commands - Agilent Technologies G1367A Reference Manual

3
Troubleshooting and Test Functions

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 step command actually consists of a series of individual commands
which move the sampler components to predefined positions enabling the
specific step to be done.
In the ChemStation the step commands can be selected from the "Test
Selection Box" in the Diagnosis display. In the Control Module the step
commands can be accessed from the pull-down menu in the well-plate sampler
"Test".
Table 16
Step
Bypass
Plunger Home
Needle Up
Needle into Vial
Draw
Needle Up
90

Step Commands

Action
Switches injection valve to the bypass
position.
Moves the plunger to the home
position.
Lifts the needle arm to the upper
position.
Lowers the needle into the vial.
Metering device draws the defined
injection volume.
Lifts the needle out of the vial.
Comments
Command also switches the
valve to bypass if it is not
already in that position.
Command lifts the needle, and
lowers the needle into vial.
Command can be done more
than once (maximum draw
volume of 100µl cannot be
exceeded). Use "Plunger
Home" to reset the metering
device.
Command also switches the
valve to bypass if it is not
already in that position.
1100 Series WS MWS Reference Manual