General Design Of The Switchos Ii Advanced Microcolumn Switching Unit - LC Packings SWITCHOS II User Manual

Introduction
1.2 General Design of the Switchos II Advanced Microcolumn
A schematic diagram of general design of the Switchos II Advanced Microcolumn
Switching Unit is presented in FIGURE 1-1.
Front Panel
He
Regulating
Valve
10-port valve A
10-port valve B
High Pressure Filter
FIGURE 1-1. Schematic Diagram of the Switchos II Advanced Microcolumn Switching Unit
The Switchos II Advanced Microcolumn Switching Unit includes the following
components:
• 10-Port Switching Valves - low dispersion valves assure dead volume free
connection of any Micro- or Nano LC column (e.g., Fusica, NanoSeries, Micro-
and Nano-Precolumns, etc.). Two fast motor-driven actuators control the valve
positions (6 port valves are incorporated into some systems).
A
• 4-Way Solvent Selection Valve - allows for the automatic selection of up to 4
different solvents without the need of pump shut down or tedious purging.
D B
One fast motor-driven actuator switches the valve into the selected position.
C
1-2
Switching Unit
He to
Bottle Caps
Solvent Tray
Loading Pump
loading flow
to application
Solvent lines A - D
to the SSV
(a)
D
C
B
A
4-way Solvent
Selection Valve
A
D B
C
Integrated Valve
Controller
D850R3
Solvent Bottles
A - D with
Bottle Caps (a)
He Inlet
He Line
Check Valve
COMMUNICATION
Remote
Control
INPUTS
RS-232-1
Network
RS-232-2
Rear Panel
User's Manual Switchos II