The pump performance is specified as follows:
Type | Specification* | |
---|---|---|
Operating principle | Serial dual-piston pump | |
Compressibility compensation | Fully automated, independent of the composition of the mobile phase | |
Flow range (settable) | VC-pumps: 0.001 – 10 mL/min in 1 µL/min increments | VF-pumps: 0.001 – 8 mL/min in 1 µL/min increments |
Flow accuracy | ± 0.1% | |
Flow precision | < 0.05% RSD or < 0.01 min SD, whichever is greater | |
Pressure range | VC-pumps: 2-70 MPa (20-700 bar, 290 – 10100 psi) With a flow rate of > 5 mL/min, the maximum pressure decreases linearly down to 30 MPa (300 bar, 4350 psi). | VF-pumps: 2 – 103 MPa (20 – 1034 bar, 290 – 15000 psi) With a flow rate of > 5 mL/min, the pressure range decreases linearly down to 80 MPa (800 bar, 11600 psi). |
Pulsation | < 1.0% or < 0.2 MPa, whichever is greater | |
Gradient formation | Low-pressure gradient proportioning | |
Proportioning accuracy | ± 0.5% (of full-scale) | |
Proportioning precision | < 0.15% SD | |
Number of solvents | VC-pumps: VC-P20, VC-P21: 4 VC-P32, VC-P33: 2 x 3 | VF-pumps: VF-P20: 4 VF-P32: 2 x 3 |
Maximum stroke volume | 80 µL | |
Mixer volume | Standard configuration: 400 µL mixing system, consisting of a capillary mixer (volume: 50 µL) and a static mixer (volume: 350 µL) Other mixing systems are available as an option. | |
Dwell volume | 679 µL (in standard pump configuration) (314 µL to 1829 µL with optionally available mixing systems) | |
Solvent degassing | VC-pumps: VC-P20, VC-P21: VC-P32, VC-P33: | VF-pumps: VF-P20: VF-P32: |
Biocompatible | VC-pumps: no | VF-pumps: yes |
Communication | USB: 1 USB port (USB 2.0, "B" type connector) 1 USB hub with 3 ports (USB 2.0, "A" type connectors) I/O Interface: 2 Dig I/O ports (mini-DIN), each providing one input, one relay output, and one bidirectional input/output System Interlink: 2 system interlink ports (RJ45-8 connectors) | |
Control | Chromeleon 7 The pump can be operated also with other data systems. For details, contact the Thermo Fisher Scientific sales organization. Keypad with 5 buttons for performing certain functions directly from the pump | |
Materials in the analytical flow path | VC-pumps: Stainless steel, titanium, ceramics, sapphire, PEEK, UHMW PE, fluoropolymers | VF-pumps: MP35N, titanium, ceramics, sapphire, PEEK, UHMW PE, fluoropolymers |
For information about the chemical resistance of materials refer to the technical literature. | ||
Solvent and additive information | ||
Safety features | Leak detection and safe leak handling, excess pressure monitoring | |
Good Laboratory Practice (GLP) features | Predictive Performance functions for scheduling maintenance procedures based on the actual operating and usage conditions of the pump. All system parameters logged in the Chromeleon Audit Trail. | |
* Typical operating conditions for measurable specifications: |