HP Agilent 1100 G1311A Gradient Pump
The HP Agilent 1100 G1311A Gradient Pump ensures virtually pulse-free and stable solvent flow, with dual floating pistons in series, precisely servo-controlled. This design with variable stroke volume allows pulse-free solvent delivery and efficient mixing. An inlet-valve electronically activated and synchronized to piston stroke eliminates vapor formation with volatile solvents and is maintenance free. The HP Agilent quaternary pump is equipped with a high-speed proportioning valve and pre-configured vacuum degasser for convenient low-pressure mixing of up to four solvents and highest flexibility in solvent choices.
HP Agilent 1100 G1311A Gradient Pump Specifications
|Setable Flow Range||0.001 – 10 ml/min, in 0.001 ml/min increments|
|Flow Range||0.2 – 10.0 ml/min|
|Flow Precision||< 0.3% RSD (usually 0.15%), based on retention time, at 1 ml/min|
|Pressure||Operating range 0 – 40 MPa (0 – 400 bar, 0 – 5880 psi) up to 5 ml/min
Operating range 0 – 20 MPa (0 – 200 bar, 0 – 2950 psi) up to 10 ml/min
|Pressure Pulsation||< 2% amplitude (typically < 1%), at 1 ml/min isopropanol, at all pressures > 1 MPa (10 bar)|
|Recommended pH Range||1.0 – 12.5, solvents with pH > 2.3 should not contain acids which attack stainless steel|
|Gradient Formation||Low pressure quaternary mixing/gradient capability using proprietary high-speed proportioning valve
Delay volume 800 – 1100 µl, dependent on back pressure
|Composition Range||0 – 95% or 5 – 100%, user selectable|
|Composition Precision||< 0.2% SD, at 0.2 and 1 ml/min|
|Dimensions (H x W x D)||5.5 x 13.5 x 17 in|
|Electrical Requirements||100-120 or 22-240 VAC, 50/60 Hz, 220 VA|
Refurbished instruments information
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are enclosed. As an extra safety precaution you as a customer get 3 months function warranty.
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