The Agilent 1290 Infinity G4220B Binary Pump comprises two identical pumps integrated into one housing. Binary gradients are created by high-pressure mixing. A degassing unit is included for applications that require best flow stability, especially at low flow rates, for maximum detector sensitivity. The flow path of the pump has been optimized for minimal delay of gradients. Typical applications are high throughput methods with fast gradients on high resolution 2.1 mm columns. The pump is capable of delivering flow in the range of 0.05 -2 mL/min against up to 1200 bar. A solvent selection valve allows forming binary mixtures (isocratic or gradient) from one of two solvents per channel. Active seal wash (optional) is available for use with concentrated buffer solutions.
SN: DEBAA04675
Specifications:
| Type | Specifications |
|---|---|
| Hydraulic system | Two dual pistons in series pumps with proprietary servo-controlled variable stroke design and smooth motion control. |
| Settable flow range | Set points 0.001 —2 ml/min, in 0.001 ml/min increments, executed in 300 pl/step increments |
| Flow precision | ≤0.07 % RSD or 0.005 min SD, whatever is greater (0.2 —2.0 ml/min) (based on retention time at constant room temperature) |
| Flow accuracy | ±1 % or 10 μl/min, whatever is greater (pumping degassed H2O at 10 MPa (100 bar)) |
| Pressure operating range | Operating pressure range 120 MPa (1200 bar), up to 2 ml/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 | High pressure binary mixing.Delay volumeJet Weaver V35: <45 μlJet Weaver V100: <75 μlJetWeaver generally recommended. For applications requiring lowest delay volumes, JetWeaver can be removed out of the flow path. |
| Delay volume | Jet Weaver V35: <45 μl Jet Weaver V100: <75 μ |
| Composition range | Settable range: 0 – 100 % Recommended range: 1 — 99 % or 5 μl/min per channel, whatever is greater. |
| Composition precision | <0.15 % RSD, or 0.01 min SD, whatever is greater .0.2 —5.0 ml/min; based on retention time at constant room temperature |
| Composition accuracy | ±0.35 % absolute (5 – 95 %, 0.2 – 5.0 ml/min) (water/caffeine tracer) |
| Solvent selection valve | Default |
| Integrated degassing unit | Number of channels: 2 Internal volume per channel: 1.5 mL |
| Control | Agilent ChemStation for LC (B.04.02 or above) EZChrom Elite (3.3.2 SP1 or above) OpenLAB (3.3.2 SP3) Masshunter (B.02.01 SP1 or above) |
| Local control | Agilent Instant Pilot (G4208A) (B.02.08 or above) |
| Communications | Controller-area network (CAN), RS232C, APG remote: ready, start, stop and shutdown signals, LAN |
| Safety and maintenance | Extensive diagnostics, error detection and display (through Agilent Lab Advisor), leak detection, safe leak handling, leak output signal for shutdown of the pumping system. Low voltage in major maintenance areas. |
| GLP features | Early maintenance feedback (EMF) for continuos tracking of instrument usage in terms of purge valve switches and volume of pumped mobile phase with pre-defined and user settable limits and feedback messages. Electronic records of maintenance and errors. |
| Housing | All materials recyclable. |
| Dimensions (height × width × depth) | 240 x 345 x 435 mm |
