74 Setting PowerLine Controller Operating Parameters
4.4.2 Setting Autoinjector Setup Parameters
This section describes the autoinjector setup parameters and the procedures for setting
them.
Syringe Draw Rate
Controls the rate at which the autoinjector draws the sample from the vial. The slow rate is
useful for viscous or gassy samples.
To set the Syringe Draw Rate parameter:
1. Move the cursor to the Syringe Draw Rate field.
2. Type 1 for normal (3.7 µL/sec - default) or 0 for slow (1.8 mL/sec) operation.
3. Press Enter.
Inject Delay
Instructs the system to pump a selected volume of eluent before making an injection.
This feature allows a gradient to start or external events to complete before a sample is
injected. (See Chapter 6, Creating PowerLine Methods, for more information on gradients
and external events.)
To set the Inject Delay parameter:
1. Move the cursor to the Inject Delay field.
2. Type a volume value between 0.0 and 9.9 (mL).
3. Press Enter.
Auto Standards
Specifies the sequence of standards or samples for the Waters autoinjector.
Note: Special function vial codes (for example Purge Inj., Equilibrate) are executed in
priority over the auto standards routine at the beginning of a method run (see Table 5-1).
Standards can occupy up to the first five consecutive vial positions in the Waters
autoinjector carousel and must start with Vial 1. If you are using fewer than five standards,
samples can start in the next vial position after the last standard.
Standards are run at the beginning of the method and are repeated after the specified
number of sample vials has been run.
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