Model CP Constant Pressure Pump for Chromatography Column Packing

A Better Way to Pack Columns

SSI’s Model CP is an electric high-pressure pump operating in four constant pressure modes to efficiently pack small diameter packing materials and columns. The Model CP allows constant packing pressures up to 10,000 psi within flow rates of .01-12 mL/min. or .01-24 mL/min. The pump can also be set to deliver a constant flow.

User-Selectable Controls

The pump features a user-selectable flow ramping rate to optimize the packing process. In addition, you can select and set the desired pressure, maximum flow, and either the fast-pack or standard mode. When these features are used, the flow rate automatically adjusts to maintain pressure in any column size up to ½" and any particle diameter, making it the most versatile column packing pump on the market.

Column Packing Simplified

The Model CP reduces turbulence and shear during the packing process, leading to more uniform bed structures and less generation of fines compared to traditional methods of packing using high-pressure pneumatic amplifier pumps. The packing pressure can be monitored during the process to verify performance.

The pump has RS 232 or simple keypad control and a digital stepper drive for precise flows and pressures. Each Model CP comes with a CD containing Quick-Set, a free program that allows you to graph and log pump flow and pressure to a delimited text file. The program can automatically detect and set up COM ports, or they can be manually assigned. Quick-Set also offers a number of other features. Download Quick-Set here.

A column packing system is also available for use with the model CP. All SSI pumps include a 3-year warranty.

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SPECIFICATIONS

Flow Rates	0.01 - 12.0 mL/min or 0.01-24.0 mL/min.
Pressure	0 - 9990 psi
Pressure Accuracy	± 1% of full scale pressure
Flow Accuracy	± 2%
Flow Precision	0.2% RSD
Dimensions	6" H x 11" W x 18" D (15 x 26 x 46 cm)
Weight	30 lbs (14 kg)

STANDARD FEATURES & CONTROLS

Dual pump heads for reduced pulsation
Real-time pressure monitoring with upper/lower pressure limits.
Remote 0-10 volt & remote 0-10 kHz flow rate control input
Simple front panel key pad controls with LED display
Autoprime™ one button toggles flow rate to maximum for rapid solvent change
Motor stall detector
Prime purge valve
RS-232 serial COM port for complete control & status monitoring
Run/stop inputs (5 volt TTL type)