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Standalone Control
Standalone control means using the automatic liquid sampler’s electronics to
control its own operation. The controls are switches located above the START
button of the injector module and are shown in Figure 52. The G1512A
controller has two standalone configurations, synchronous and asynchronous.
(For more information on configuring the controller, see “Installing the
controller” in chapter 1.)
This chapter discusses the operation of the automatic liquid sampler with
standalone control. The topics are:
• Setting the run parameters
• Running the samples
• Using two injectors
• Example of standalone control setup
The basics of operating the automatic liquid sampler are discussed in
chapter 3, “Operation.”
Setting the run parameters
With standalone control, use the injector control switches to set the injection
parameters and the rotary switch to set the number of sample vials in the
injector turret. Instructions for setting these parameters are contained in this
section. For a more detailed description of each run parameter, turn to page 53.
Set the following run parameters using the switches inside the front cover of
the injector. Each switch moves up and down.
• Sample size—There are two switches for 1, 2, 3, or 5 stops.
• Injection—There is one fast/slow switch.
• Number of injections per vial—There are two switches for 1, 2, 3, or 4
injections per vial.
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