Thermo Scientific Dionex, Operator'S Manual

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Dionex Integral Systems Operator’s Manual
28
Doc. 065250-06 03/2020
•
To turn the pump on and off, set the position of the solenoid valve on
and off in the Chromeleon 7 instrument method or on the SP ePanel in
Chromeleon 7.
•
To adjust the pump speed, use the potentiometer on the main SP
electronics board (see
Section 10.9 ).
•
For instructions on how to install and configure a peristaltic pump,
see
Appendix E .
3.5.5 Solenoid Valves
Each SP is equipped with several solenoid
valves (see
Figure 3-8 ) that direct liquid flow
throughout the SP flow path. For valve
locations and functions for the SP1, see
Section 3.6.1 ; for the SP2, see Section 3.6.2 .
For custom SP configurations, order
solenoid valves (P/N 068554) separately.
Figure 3-8. Solenoid Valve
The three-way solenoid valves provide on/off control of liquid flow in
two directions (see
Figure 3-9 ).
Figure 3-9. Three-Way Solenoid Valve Flow Schematics
C
NO
NC
OFF ON
NC = normally closed
NO = normally open
C = common flow
Note:
When the valve is
off (not energized),
port NO is open and
port NC is closed.
Conversely,
port NC
is open and port NO
is closed.
when
the valve is on
(energized),
C
NO
NC