User`s guide

Introduction To The PHD ULTRA
™
Pump
PRODUCT OVERVIEW – THEORY OF OPERATION
The PHD ULTRA
™
Syringe Pump series is a family of high-accuracy, microliter- and milliliter-compatible
pumps designed for versatile technical use including mass spectroscopy, calibration, drug and nutritional
infusions, microdialysis, dispensing, chromatography and LC/HPLC. The PHD ULTRA
™
incorporates a
microprocessor controlled, small step angle stepping motor that drives a lead screw and Pusher Block.
Advanced micro-stepping techniques are employed to further reduce the step angle to eliminate flow
pulsation. The pump is engineered to provide flow accuracy within 0.35% and reproducibility within
0.05%.
T
he PHD ULTRA
™
u
ses a touchscreen interface and advanced software to control operation. External I/O
interfaces permit external control via an independent computer or device. The application software
provides convenient selection of common syringe models from a Syringe Look Up Table, as well as
insertion of custom syringe specifications. The system is then able to calculate the cross-sectional area of
the syringe selected and calibrate the flow rate and volume accumulation, displaying real-time operating
characteristics via on-screen graphics.
PUMP MODELS
The PHD ULTRA
™
Syringe Pump is available in three configurations designed for different operating
environments and varying degrees of operational flexibility. The configurations are:
• Infuse Only: This model supports infusion operations at user-definable flow rates and with selectable
target volume or time values to control the total infusion volume. The entry-level Infuse Only model
does not include programmable, user-defined methods.
• Infuse/Withdraw: This model supports infusion and withdrawal operations at user-definable flow rates
and with selectable target volumes or time values to control the total volume pumped for both the
infusion and withdraw portions of a procedure. This model provides access to many of the advanced
method programming options of the PHD Ultra, but only supports a single stored Method.
• Infuse/Withdraw Programmable: This model supports both infusion and withdraw operations, and can
use both simpified pumping profiles or the more advanced pump profiles and I/O settings that permit
interactions with external devices. In addition to supporting all of the advanced programming tools
available on the PHD Ultra, this model also allows users to create and store multiple user-defined
Methods on the pump.
This manual has been written to accommodate Infuse/Withdraw/Programmable configurations. Where
features/capabilities are not available in the Infuse Only or Infuse/Withdraw basic models, we have
identified that in the manual.
Harvard Apparatus PHD ULTRA
™
Syringe Pump Series User's Manual
Publication 5419-002-Rev-A
14
I
ntroduction To The PHD ULTRA™