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Harvard Apparatus
phone
508.893.8999
toll free U.S.
800.272.2775
fax
508.429.5732
www.harvardapparatus.com
17
SYRINGE PUMPS
PHD

ULTRA
TM
CP Constant Pressure Syringe Pump
Constant Pressure Syringe Pump
Technology Breakthrough
The PHD ULTRA
TM
CP Syringe Pump is the first of its kind to allow
operation under constant pressure or constant flow. Historically, the
only means available to dispense at constant pressure has involved
the use of various amplifiers and other accessories/software.
The PHD ULTRA
TM
CP Syringe Pump, when combined with virtually
any commercially available pressure transducer/amplifier combination
with 0-10 V DC analog output, results in a constant pressure
dispensing system. This system can deliver fluids with an applied
force up to 1,000 lbs (depending upon the pump).
APPLICATIONS
Short-term organ perfusion studies that require the
maintenance of physiologic conditions
Introduction of chemical reactants in a controlled manner
Ocular injections and perfusions
Small animal whole-body perfusions
Constant pressure microfluidic mixing
Administration of genetic material into organs
without viral vectors
PC5 88-3015 PHD ULTRA
TM
CP
Infusion/Withdrawal
Programmable
Our user-friendly touch screen interface allows for simple control
of either constant pressure or constant flow-based applications.
KEY FEATURES
Enables continuous pressure-controlled infusion
Use in constant flow or constant pressure mode
Enhances safety for sensitive infusion targets and
physiological experimentation
Compatible with a wide range of pressure transducers
Automatically adjusts flow rate to maintain constant pressure
PC Datalog Application with real-tme parameter plotting
Legendary Reliability - 2 year warranty
Superior Functionality
Using Harvard Apparatus syringe pump technology and software
controlled pressure monitoring, the PHD ULTRA
TM
CP Syringe Pump is
able to maintain a user-defined system pressure ±2% once the steady
state pressure value has been achieved.
A user-adjustable sensitivity setting allows for the customization of
the system response time necessary to attain the set pressure. The
PHD ULTRA
TM
CP Syringe Pump allows the user to set pressures in
the units of their choice including mmHg, kPa, and psi.
Pressure & Flow Rate Data
Data can be monitored via RS-232 from the PHD ULTRA
TM
CP
Syringe Pump to a PC. In practice, the 0-10 V analog output of a
pressure transducer amplifier is connected to the analog input on the
rear panel of the pump. The amplifier or signal conditioner can be
provided by the customer, or accomplished with various transducers
and amplifiers available from Harvard Apparatus,
see pages 42 to
45. The pressure range may be scaled to fit the available transducer
voltage output for systems that output less than 10 V. While in
constant pressure mode, in addition to the set and actual pressure,
the pump displays the flow rate. This data may be output for further
analysis with a variety of data acquisition packages.
Accuracy & Reproducibility
In addition to constant pressure mode, the PHD ULTRA
TM
CP Syringe
Pump may also be used in flow mode with its world renowned
accuracy and reproducibility.
All PHD ULTRA
TM
CP Syringe Pumps are infusion/withdrawal program-
mable models. When used in flow mode, these offer programmable
features such as method storage and flow programming functions to
allow the user to create simple to complex methods (see page 19).
The PHD ULTRA
TM
CP Syringe Pump is available in a variety of config-
urations to suit the desired pressure or flow rate ranges.
PHD ULTRA
TM
CP Constant Pressure Syringe Pump
SYRINGE PUMPS