user selects “No” to the overwrite question, the screen will return to the Save As name field for
the user to edit the name. The Fusion series pumps can store up to a maximum of 20 different
methods.
Priming/Bolus Rate
Priming allows for the user to temporarily run the pump to remove dead/empty volume in the
syringe needle or tubing prior to running the experiment.
The rate at which priming occurs is set in the Priming/Bolus Rate field. The value entered can
be any integer or decimal within the limits for the syringe. The min/max flow rate limits can be
found in the orange bar at the top of the screen when the Priming/Bolus Rate field is selected.
Any entered value beyond these limits will be automatically adjusted to the minimum or
maximum limit, whichever is closer. The total number of decimal places is limited to four.
The units for the Priming/Bolus Rate are determined by the Flow-Rate Units setting in
Options. Adjusting the units will affect the min/max limits for the Priming/Bolus Rate field.
To enter priming mode on Fusion pumps, press and hold the Start key while in the main screen
of Basic Mode.
Caution
Flow rate is often set for the needs of the experiment; however, users should be aware that
setting high flow rates, especially for viscous fluids, may require high linear force beyond the
limits of the pump which may cause the pump to stall out. Additionally, high flow rates can
exert tremendous pressure within a syringe that may cause glass or plastic syringes to burst.
In the case of high-pressure experiments, users should consider using Chemyx Stainless-
Steel Syringes and the high-pressure Chemyx Nexus 6000 pump.
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