Bio-Rad BioLogic Signal Import Module (SIM) - Manual (Page 46)

2.6.4 SVT3-2 Diverter Valve
The SVT3-2 diverter valve is a low pressure 3-port, 2-position valve. This valve may be used in a number of
ways:
• To divert the eluant stream from the detectors to a fraction collector or a waste container.
• As a sample select valve when placed before Workstation pump A.
The Maximizer may not be used in this application.
• As a water rinse valve when placed before Workstation pump B.
• As a user-define valve when included as part of the plumbing setup.
Figure 2-17. SVT3-2 Diverter Valve
Connect the SVT3-2 valve’s signal cable to any of the available solenoid valve connectors on the back of
the Workstation (ports 1, 2 or 3).
Plumbing connections depend on the valve’s use:
• Plumbing as a diverter valve: Use 1/16” (1.6 mm) OD PEEK tubing and 1/4-28 fittings. Use orange
PEEK 0.020” (0.51 mm) ID tubing for the F10 pumps, and green PEEK 0.030” (0.76 mm) ID tubing
for the F40 pumps.
• Plumbing before a pump: Use 1/8” (3.2 mm) OD tubing and 1/4-28 fittings.
From the Manual screen you can manually switch inlet ports on the SVT3-2. Manual valve control is useful
for the following:
• When priming the tubing and the valves with buffer prior to starting a method.
• For purging or rinsing all tubing lines during cleaning process.
In the Setup screen you can name each of the two valve positions. For example, when the SVT3-2 is placed
before the Workstation pump, you can identify the valve by the name or composition of the buffer. The name
that you apply in the Setup screen will appear in the method Protocol screen when you program an Isocratic
Flow step, a Change Valve step, or a Linear Gradient step.
When used as a diverter valve with a Model 2110 or generic fraction collector, this valve should be named
as such in the Setup screen. Position 1 of this valve is Waste; position 2, Collect.
DESCRIPTION OF SYSTEM COMPONENTS SYSTEM OVERVIEW
2-33