Agilent Technologies 1100 Series, Service Manual

Page: 270 / 288

258 1100 Series Nano Pump Service Manual
7 Specifications
Performance Specifications
Table 63 Performance Specification Agilent 1100 Series Nano Pump
Type Specification
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
Settable column flow
range 0.01 – 4 µl/min
1 – 2500 µl/min (with the electronic flow control bypassed)
Recommended column
flow range 0.1 – 1 µl/min
200 – 2500 µl/min (with the electronic flow sensor bypassed)
Optimum composition
range 1 to 99% or 5 µl/min per channel (primary flow), whatever is greater
Composition precision < 0.2 % SD, at 500 nl/min (default settings),
Minimum primary flow/pump channel is 5 µl/min
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)
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.
Control and data
evaluation Agilent ChemStation for LC
Analog output For pressure monitoring, 2 mV/bar, one output
Communications Controller-area network (CAN), GPIB, RS-232C, APG Remote: ready,
start, stop and shut-down signals, LAN optional