ICS-900 Operator’s Manual
16 Doc. 065215-02 9/09
2.3 System Component Details
2.3.1 Pump
The ICS-900 pump is a microprocessor-based isocratic eluent delivery
system. Its variable speed, dual-piston series design ensures pulse-free
pumping for the most demanding applications.
Primary Pump Head
The primary pump head pumps eluent into the secondary head (see
Figure 2-5
). The check valves, which prevent reverse flow through the
pump, are located on the bottom (inlet) and top (outlet) of the primary
pump head.
Secondary Pump Head
The secondary pump head delivers eluent to the pressure transducer. The
waste valve is located on the front of the secondary pump head (see
Figure 2-5
).
To open the waste valve, turn the knob one-half turn counterclockwise.
When the waste valve is in the open position, all output is directed to
waste.
Figure 2-5. ICS-900 Pump Components
Secondary
Pump Head
Primary Pump
Head
Outlet Check
Valve
Inlet Check
Valve
Waste Valve