9. Close the drain valve. Turn the drain valve knob clockwise as far as possible.
10. Set the flow rate to 1 mL/min to 3 mL/min.
Figure 5-7 Pump Status Panel
11. Press
pump
.
Pumping starts, and the pump indicator illuminates.
12. Wait a couple of minutes, and then press
pump
again.
Pumping stops and the pump indicator goes out.
13. Connect the tubing to the autosampler outlet.
14. Press
pump
again to restart pumping.
The mobile phase in the flow line downstream of the manual injector is replaced.
Note:
Make sure that the flow rate is set to a value that maintains the pressure at a setting that is lower
than the maximum column pressure.
Precautions when Replacing the Mobile Phase
Replace a Liquid with a Non-Miscible Solvent
Required Materials
• Intermediate rinse solution (such as isopropanol)
Note:
Do not use water if the mobile phase is not miscible with water.
1. Replace the old mobile phase with the intermediate rinse solution by following the procedure in
Mobile Phase with a Miscible Solvent
2. Replace the intermediate rinse solution with the new mobile phase by following the procedure in
Mobile Phase with a Miscible Solvent
Hardware User Guide
ExionLC
™
100 System
RUO-IDV-05-1839-C
110 / 219
Service and Maintenance