28 1290 Infinity Quaternary Pump User Manual
2 Site Requirements and Specifications
Performance Specifications
Performance Specifications
Tabl e 2 Performance specifications
Type Specification Comments
Hydraulic system Dual pistons in series pump with
proprietary servo-controlled variable
stroke design, power transmission by ball
screws, smooth motion control of pistons
for active damping.
Settable flow range 0.001—5 mL/min, in 0.001 mL/min
increments.
Executed in 300 pL/st
ep increments
Flow precision ≤0.07 % RSD or 0.01 min SD, whatever is
greater (0.2—5.0 mL/min).
Based on retention
time at constant room
temperature.
Flow accuracy ±1 % or ± 10 µL/min, whatever is greater. Pumping degassed
H
2
O at 10 MPa
(100 bar)
Maximum operating
pressure
Operating range up to 120 MPa
(1200 bar), up to 2 mL/min, ramping
down to 80 MPa (800 bar) up to
5mL/min.
Pressure pulsation <1 % amplitude or < 0.5 MPa (5 bar),
whatever is greater.
At 1 mL/min water
Compressibility
compensation
Automatic, pre-defined, based on mobile
phase selection.
Gradient formation Low pressure quaternary mixing
Delay volume Standard configuration: <350 µL
With optional V380 Jet Weaver: <500 µL
Composition range Settable range: 0 – 100 % Recommended range:
1 – 99 % or 5 µL/min
per channel, whatever
is greater.
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