Thermo Scientific Dionex, Operator'S Manual

Page: 36 / 228

Dionex Integral Systems Operator’s Manual
24
Doc. 065250-06 03/2020
3.5 SP Component Descriptions
This section describes the components (valves, dilution vessels, pumps, and so
on) that can be installed on an SP panel. To control an installed component, enter
commands in a Chromeleon 7 instrument method or use the controls on the SP
ePanel in Chromeleon 7.
NOTE Commands for the SP (and SS) must be added in the
Script Editor view in the Instrument Method Editor.
Commands for other Dionex Integral system
components can be added in the Instrument Method
Wizard.
3.5.1 Metering Valve (Rotary Valve)
The metering valve is a 10-port high-pressure rotary valve that measures
sample or standard for delivery to a dilution vessel. The valve is available
in two models: PEEK
™
(P/N 068556) and stainless steel (P/N 068557).
Both models are electrically-activated, two-position valves. A PEEK
valve is included in the SP1 and SP2. For custom SP configurations,
either valve model can be ordered.
A 100

L sample loop is included with the metering valve. If you need a
loop with a different volume, follow the instructions in Section 7.2.5 to
create and calibrate a standard loop.
Figure 3-4 shows the liquid flow path through the valve ports at each
valve position. Figure 3-5 shows the tubing connections to each valve
port on an SP1 and SP2 and the functions performed at each valve
position.
Figure 3-4. 10-Port High-Pressure Valve Flow Schematics
POSITION 1–2
1
3
5
7
9
2
4
6
8
10
POSITION 10–1
1
3
5
7
9
2
4
6
8
10