Thermo Scientific thermoscientific Vanquish Pumps C, Operating Manual

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11 • Specifications
Page 254 Pumps C, Pumps F ( VC-Pxx, VF-Pxx)
Operating Manual
11.1 Performance Specifications
For details on the performance specifications for the pumps, see the
next sections.
11.1.1 Quaternary Pump and Dual Pump
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
(contribution of the pump to the
system gradient delay 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: Built-in, 4
channels
VC-P32, VC-P33: Built-in, 6
channels
VF-pumps:
VF-P20: Built-in, 4 channels
VF-P32: Built-in, 6 channels