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Specifications Agilent 1200 Series Nanoflow Pump |
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Hydraulic system |
Two dual piston in series, with proprietary servo-controlled variable stroke drive, floating piston, active inlet valve, solvent selection valve and electronic flow control for flow rates from 0.1 to 1 µL/min |
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Settable column flow range |
0.01 – 4 µL/min,
1 – 2500 µL/min (with the electronic flow control bypassed) |
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Recommended column flow range |
0.1 – 1 µL/min
200 – 2500 µL/min (with the electronic flow sensor bypassed) |
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Optimum composition range |
1 to 99% or 5 µL/min per channel (primary flow), whatever is greater |
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Composition precision |
< 0.2 % SD, at 500 nl/min (default settings)
Minimum primary flow/pump channel is 5 µL/min |
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Delay volume |
Typically 300 nL from the electronic flow control to the pump outlet for flow rates up to 4 µL/min.
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 to 480 µL (system pressure dependent) for flow rates up to 2.5 mL/min. (default settings; calculated volume) |
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Pressure range |
20 to 400 bar (5880 psi) system pressure |
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Compressibility compensation |
User-selectable, based on mobile phase compressibility |
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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. |
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Control and data
evaluation |
Agilent ChemStation for LC |
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Analog output |
For pressure monitoring, 2 mV/bar, one output |
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Communications |
Controller-area network (CAN), GPIB, RS-232C, APG Remote: ready, start, stop and shut-down signals, LAN optional | |
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