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Performance Specification Agilent 1200 Series Capillary 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 up to 100 μl/min |
Settable column flow range |
0.01 – 20 μl/min |
0.01 – 100 μl/min (with the extended flow range kit) |
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0.001 – 2.5 μl/min (with the electronic flow control bypassed) |
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Recommended column flow range |
1 – 20 μl/min |
10 – 100 μl/min (with extended flow range kit) |
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0.1 – 2.5 ml/min (with the electronic flow sensor bypassed) |
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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 to 99% or 5 μl/min per channel (primary flow), whatever is greater |
Composition precision |
: < 0.2 % SD, at 10 μl/min (20 μl flow sensor), 50 μl/min (100 μl flow sensor) and 1 ml/min (normal mode) default setting |
Delay volume |
Typically 3 μl from the electronic flow control to the pump outlet for flowrates up to 20 μl/min |
Typically 12 μl from the electronic flow control to the pump outlet for flow rates up to 100 μl |
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for flow rates up to 100 μl/min and electronic flow control active : primary flow path 180 - 480 μl without mixer, 600 - 900 μl with mixer(system pressure dependant) |
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Typically 180 to 480 μl (system pressure dependent) without mixer for flow rates up to 2.5 ml/min. (Mixer delay volume 420 μl) |
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Pressure range |
20 to 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. |