Chemyx Fusion Series - Infusion;Withdrawal and Flow Rate

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Chemyx, Inc.
Fusion Series User Manual
The value entered can be any integer or decimal within the limits for the syringe. The min/max
volume limits can be found in the blue bar at the top of the screen when the Volume 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 five.
The volume can be stated in units of mL or μL. The units used for the volume are dependent
upon the set units of volume for the flow rate in the Options screen during the multi-step setup.
To continuously run the pump and use the entire volume of the syringe, users can set the
volume to the total volume of the syringe or to the maximum limit. However, users are strongly
encouraged to set the safety collar/bar (see Adjusting the Safety Collar) so that the pump does
not potentially ruin the syringe.
Important Note
In Multi-Step Mode, the total volume transferred is the sum of the volume of each individual
step. For steps that withdraw volume, subtract that value from the total. Users must be aware
of how much volume is being used in each step compared to the actual volume of the syringe
that is set by the syringe plunger. The volume being transferred by the pump at any step
should not exceed the currently available volume of the syringe.
Infusion/Withdrawal (Fusion 200 only)
The Fusion 200 is capable of both infusion and withdrawal on each step. On Fusion 200
systems, an Infusion/Withdrawal toggle button will appear to the right of the Volume field. The
text and arrow direction on the button indicates the mode that is currently set and the direction
that the pusher block will move upon starting the run. Tapping the button will switch between the
two modes.
Flow Rate
The Flow Rate fields indicates how fast the pusher block will move. The amount of time that the
pump will run can be determined by dividing the set volume by the flow rate.
In Multi-Step Mode, the flow rate during the step can be static or variable, which is set by the
two rate fields (Rate 1 and Rate 2) in each step. Rate 1 represents the flow rate when the step
starts while Rate 2 represents the flow rate when the step ends (see Static Flow Rate and
Variable Flow Rate for more details).
For each 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 blue bar at the top of the screen when the 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
five.