|
Instrument Database:
Schambeck SFD GmbH - SDS 9404 - Dual plunger solvent delivery system
| |
|
|
| |
|
| |
|
| Year of introduction |
|
| Status |
available |
| Company |
Schambeck SFD GmbH
|
| Categories |
Chromatography: LC-Pump
|
The HPLC - Pump SDS 9404 is a dual plunger solvent delivery system. The mechanical design includes short plunger stroke technology with only two check valves. This results in low pulsation, typically observed with dual plunger pumps. Three interchangeable pump heads make the high dynamic solvent delivery range of 0,01 - 40 ml/min possible. All settings are reduced to a minimum and can be easily and clearly controlled with the digital switches. It is possible to change flowrate and pressure setups during operation. The LED display shows continuously the actual back pressure of the delivery system.
The speed of the powerful D.C. motor driving the plungers is controlled through a digital speed converter in combination with an accurate electronic speed controller. This makes a very stable and accurate constant flow possible. As the linearity of the flow range depends very much of the back pressure of the system, measured back pressure is used as an additional controller parameter for the electronic regulator. This results in a constant flow delivery independent of the back pressure. The pump can be externally controlled by a TTL signal for the start / stop function or by the remote control of the flow rate by an external D.C. signal. Error messages are shown by controll LEDs on the front panal and are available in form of a relay contact through the interface connector in the rear.
|
|
