Bio-Rad ChromLab™ Software - Manual (Page 41)

Valves
Instrument Guide | 39
Sample Inject Valve LEDs
The sample inject valve module is fitted with LEDs.
 Solid green LEDs indicate the flow is from the system pump.
 Solid blue LEDs indicate the flow is from the sample pump.
 Blinking green LEDs indicate the line to plumb using the Point-to-Plumb™
feature.
How the Sample Inject Valve Works
The sample inject valve enables sample to be loaded onto the column. Several
sample application techniques are available:
 The sample loop can be manually filled with sample using a syringe
followed by injection onto a column by the system pumps
 The sample loop can be filled with sample using the sample pump (if
installed) followed by injection onto a column by the system pumps
 Sample can be injected directly onto the column using the sample pump (if
installed)
Flow Paths of the Sample Inject Valve
In Manual mode (from the System Control tab in ChromLab), you can manually
change the flow path of the sample inject valve from its dialog box.
The following images show the different flow paths of the sample inject valve.
L EGEND
Manual injection flow
System pump flow
Sample pump flow
No flow