This Dionex GP-40-1 gradient pump s a microprocessor-based, dual-piston, variable-speed, gradient delivery system designed to blend and pump mixtures of up to four different mobile phases at precisely controlled flow rates. The pump can deliver the selected mobile phase composition isocratically, or as a multistep linear or curved gradient. A Digital Signal Processor (DSP) provides high speed control of pump flow and pressure. The GP40 can operate as a stand-alone product or with other Dionex modules as part of a complete chromatography system. It can also be used with non-Dionex modules that meet interface requirements for software, TTL, or relay control. The GP40 can be controlled locally, using the front panel keypad and display, or from a remote host computer (not included) with a Dionex DX LANO interface installed (not included) and PeakNet software (not included) installed on the host computer (not included). Limited remote control is also available from any device capable of providing compatible TTL signals to control the pump. The pump's two basic modes of control, Direct control and Method control, enable it to operate with or without reference to time-based events.
Features:
Dual-piston, variable speed, 100 µL stroke. Flow rate - 0.04 to 10.0 mL/min, in increments of 0.01 mL/min. Operating pressure: 35 MPa (5000 psi) maximum.