Figure 105: Diagnostic tab highlighting coupler pump
3. Select the checkbox for Coupler Pump Direction Reverse.
4. Select the checkbox for Coupler Pump On. The coupling fluid inside the Echo fluidic circuit will be pumped back into the
coupling fluid bottle. Allow the pump to run in reverse for a few minutes so that the coupling fluid drains from the lines.
Note: The fluid returning to the coupling fluid bottle will raise the water level and may potentially overflow the
coupling fluid bottle. It is recommended to keep watch on the water levels to prevent overflow.
153 PN | 001-11665
USER GUIDE | Echo® 525 Liquid Handler User Guide Maintenance Procedures
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