Draw Speed |
The Draw Speed determines the rate at which the plunger draws sample from the vial. Set the speed to an appropriate value for your sample. For viscous samples, use a slow Draw Speed. | |||
Eject Speed | The Eject Speed determines the rate at which the plunger ejects sample from the metering device. If you are injecting large volumes of sample, setting a high Eject Speed will shorten the time needed for an injection cycle. For viscous samples, use a slow Eject Speed. | |||
Wait Time After Draw | This time ensures that the temporary vacuum, which originates from the drawing of liquid from the sample vial, dissipates. The needle stays first on the seat for the specified time, then after drawing sample from the vial, remains there for the specified time. | |||
Needle Height Offset | This is a vertical offset that enables you to position the needle a specific distance (in mm) away from its standard position. The Needle Height Offset is calculated from the bottom of the vial, with a slight amount of clearance to cover tolerances. Use a negative offset to touch the vial bottom with the needle. Use a positive offset to raise the needle higher in the vial to clear precipitates on the bottom of the vial, or to select one phase of a biphasic sample.
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