User`s guide

AU TOFILL PROF ILE

The Autofill flow profile is an automated infuse/withdraw or withdraw/infuse step that operates at

constant, but separately defined, flow rates for the withdraw and infuse operations. The Autofill profile is

designed to work in conjunction with an autofill valve that controls the switching of flows from a reservoir

for refilling the syringe, to the target infusion subject.

Figure 63: Autofill Flow Pump Operation Profile.

When creating or editing an Autofill Rate profile, you will define the following operating parameters:

• The Flow Mode defining the starting direction of flow: infuse or withdraw

• The Flow Rates to be used during infuse/withdraw operations

• The infusion volume to be delivered during each pump cycle

• The total volume to be delivered during all cycles or the total number of infuse/withdraw cycles that

you want the pump to execute. For example, if you want to pump 100 ml using a 10 ml syringe, the

pump will execute 10 Infuse/Withdraw cycles

During an Autofill profile, the PHD ULTRA

™

operates at a constant pump rate during the infusion and

withdrawal stages, although the rate can be different for each direction (i.e. infuse vs. withdraw).

When creating or editing an Autofill flow profile, you can set the rate in ml, µl, nl or pl units of volume

using sec, min or hr as the units of time. The system automatically calculates a minimum and maximum

flow rate based on the syringe selected or custom-defined. The min/max values are made available as

button selection options on the Set Rate and Concentration screen.

Figure 64: Step Definition screen for an Autofill profile.

✐

NOTE: Pin 8 of the 15-pin I/O Connector adapter on the rear of the PHD ULTRA™ will

actuate to control a Harvard Apparatus Valve Box used in conjunction with an Autofill Pump

Control Profile.

Flow

Rate

Withdraw

Infuse

Time | Volume

Harvard Apparatus PHD ULTRA

™

Syringe Pump Series User's Manual

Publication 5419-002-Rev-A

sing The PHD ULTRA™