Pumps and Degassers

SECcurity Components:    Pumps and Degassers
Isocratic pump                               P/N 404-0001
Binary pump                                  P/N 404-0002
Quaternary pump                           P/N 404-0003
Vacuum degasser 2 channels          P/N 409-0024
Vacuum degasser 4 channels          P/N 409-0031

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SECcurity isocratic pumps  Part number: 404-0001 Option seal wash: 404-0016 This ideal GPC/SEC pump has the highest run-to-run and day-to-day precision of retention times. The optimized design ensures virtually pulse-free and stable solvent flow, with dual floating pistons in series, precisely servo-controlled. This delivery principle allows variable stroke volume optimized to selected flow rate. An inlet-valve electronically activated and synchronized to piston stroke - eliminates vapor formation with volatile solvent. Low operating and maintenance costs are due to long instrument uptime. Versatile wide flow range - up to 10 mL/min, includes semi-preparative separations. Robust materials withstand most demanding applications - stainless steel, titanium, gold, ruby, sapphire, ceramics, PEEK and PTFE ensure long lifetime. Seal wash option for high salt mobile phases keeps maintenance to a minimum for lower operation costs Flow Specifications    Precision:  ≤0.07 % RSD,or ≤0.02 min SD whatever is greater, based on retention time at constant room temperature Accuracy:   ± 1 % or 10 µL/min whatever is greater Range:  Setpoints from 0.001 to 10.0 mL/min, in 0.001 mL/min increments Pressure Specifications Operating range:   0 - 40 MPa (0 - 400 bar, 0 - 5880 psi) up to 5 mL/min; 0 - 20 MPa (0 - 200 bar, 0 - 2950 psi) up to 10 mL/min Pulsation:   <2 % amplitude (typically <1 %) at 1 mL/min isopropanol at all pressures >1 MPa (> 10 bar, >147 psi) Compress.compensation: User selectable, based on mobile phase compressibility pH range:   1.0 - 12.5;  Solvents with pH <2.3 should not contain acids which attack steel GLP/Compliance:  Electronic records of maintenance and errors. Early maintenance feedback (EMF) for continuous tracking of instrument usage, display of feedback messages if preset limits are exceeded. C

SECcurity binary pump Part number: 404-0002 Option seal wash: 404-0024 The SECcurity binary pump is based on a high-pressure mixing principle. It is the pump of choice for reproducible gradients and high performance, especially at low flow rates and for high throughput applications. It has an optional programmable solvent selection valve which combines two out of four solvents for utmost flexibility and increased convenience, for example, when flushing the column. Reliable design keeps maintenance to a minimum using electronically-controlled active inlet-valves for flow rates up to 5.0 mL/min. The binary pump is also ideally suited to do standard-bore chromatography. Floating pistons with path-of-least-resistance principle ensures highest seal lifetime. Flow Specifications    Precision:  ≤0.07 % RSD,or ≤0.02 min SD whatever is greater, based on retention time at constant room temperature Accuracy:   ± 1 % or 10 µL/min whatever is greater Range:  Setpoints from 0.001 to 5.0 mL/min, in 0.001 mL/min increments Pressure Specifications Operating range :   0 - 40 MPa (0 - 400 bar, 0 - 5880 psi) up to 5 mL/min; Pulsation:   <2 % amplitude (typically <1 %) at 1 mL/min isopropanol at all pressures >1 MPa (> 10 bar, >147 psi) Compress. compensation: User selectable, based on mobile phase compressibility Gradient Specifications Delay volume:    180 - 480 µl (600-900 µl with mixer) dependent on back pressure Composition precision:  <0.15 % RSD, 1 mL/min Composition accuracy:  <0.5 % absolute pH range:   1.0 - 12.5;  Solvents with pH <2.3 should not contain acids which attack steel GLP/Compliance:  Electronic records of maintenance and errors. Early maintenance feedback (EMF) for continuous tracking of instrument usage, display of feedback messages if preset limits are exceeded. C

SECcurity quarternary pump Part number: 409-0003 The SECcurity quaternary pump is for low pressure mixing of up to four solvents. The quaternary pump provides highest flexibility in solvent mixing and is recommended for a wide range of research and routine applications, and in the method development area. It comes with an incorporated vacuum degasser that ensures virtually pulse-free and stable solvent flow, with dual floating pistons in series, precisely servo-controlled. The variable stroke volume allows pulse-free solvent delivery and efficient mixing. An inlet-valve electronically activated and synchronized to piston stroke - eliminates vapor formation with volatile solvents. Keeps maintenance and operation costs to a minimum, by use of  robust materials such as stainless steel, titanium, gold, ruby, sapphire, ceramics, PEEK and PTFE. Optional active seal wash option for high salt mobile phases to prevent corrosion. Wide flow range of up to 10 mL/min, including semi-preparative separations. Flow Specifications    Precision:  ≤0.07 % RSD,or ≤0.02 min SD whatever is greater, based on retention time at constant room temperature Accuracy:   ± 1 % or 10 µL/min whatever is greater Range:  Setpoints from 0.001 to 10.0 mL/min, in 0.001 mL/min increments Pressure Specifications Operating range:   0 - 40 MPa (0 - 400 bar, 0 - 5880 psi) up to 5 mL/min; 0 - 20 MPa (0 - 200 bar, 0 - 2950 psi) up to 10 ml/min Pulsation:   <2 % amplitude (typically <1 %) at 1 mL/min isopropanol at all pressures >1 MPa (> 10 bar, >147 psi) Compress. compensation: User selectable, based on mobile phase compressibility Gradient Specifications Delay volume:    800 - 1100µL dependent on back pressure Composition precision:  <0.20 % SD, at 0.2 and 1 mL/min pH range:   1.0 - 12.5;  Solvents with pH <2.3 should not contain acids which attack steel GLP/Compliance:  Electronic records of maintenance and errors. Early maintenance feedback (EMF) for continuous tracking of instrument usage, display of feedback messages if preset limits are exceeded.

SECcurity vacuum degasser 2 channel degasser: 409-0024 4 channel degasser: 409-0031 Special on-line vacuum degasser for all GPC/SEC eluents including hexafluoroisopropanol HFIP. The degasser has two, three, or four independent  solvent channels with a small volume for optimum degassing up to a flow rate of 3 ml/min. The two (three) channel degasser is modular upgradeable to add additional independent solvent channels Specifications    Number of Channels            2, 3, 4 Internal Channel Volume     480 ml Wetted parts                       PEEK, Teflon AF® Life expectancy                    5 years continuous run GLP/Compliance                  Validation analog out 5 mVDC / 1 mm Hg ±1.0%