User manual

38 1260 Nanoflow Pump User Manual
2 Site Requirements and Specifications
Performance Specifications
Performance Specifications
Tabl e 14 Performance Specification Agilent 1260 Infinity Nano Pump (G2226A)
Type Specification
Hydraulic system Two independent pump channels, each with two pistons in series. One proprietary servo-controlled
variable stroke drive per channel. Floating pistons, active inlet valves, solvent selection valves (two
solvents per pump channel), electronic flow control for flow rates up to 4 µL/min
Settable column flow
range
0.01 – 4 µL/min
Recommended
column flow range
0.1 – 1 µL/min
Column flow precision < 0.7 % RSD or 0.03 % SD (typically 0.4 % RSD or 0.02 % SD), at 10 µL/min and 50 µL/min column
flow (based on RT, default setting)
Optimum composition
range
1 – 99 % or 5 µL/min per channel (primary flow), whatever is greater
Composition precision < 0.2 % SD, at 500 nL/min (Nano Pump), 10 µL/min(Cap. Pump, 20 µL flow sensor), 50 µL/min
(Cap. Pump, 100 µL flow sensor), minimum primary flow/pump channel is 5 µL/min, primary flow
500 – 800 µL/min
Delay volume Typically 300 nL from the electronic flow control to the pump outlet
For flow rates up to 4 µL/min and electronic flow control active: primary flow path 180 – 480 µL;
system pressure dependent (default settings; calculated volume)
Typically 180 – 480 µL180 (system pressure dependent) for flow rates up to 2.5 mL/min. (default
settings; calculated volume)
Pressure range 20 – 400 bar (5880 psi) system pressure
Compressibility
compensation
User-selectable, based on mobile phase compressibility
Recommended pH
range
1.0 – 8.5 , solvents with pH < 2.3 should not contain acids which attack stainless steel. Upper pH
range is limited by fused silica capillaries.
Control and data
evaluation
Agilent Control Software (Chemstation, EZ-Chrom, OL, etc.)