Flush Air - Thermo Scientific EASY-nLC 1200 Troubleshooting And Maintenance Manual

Flush Air

Thermo Scientific
3. Press Start.
The Flush Air script removes air from inside the pump head by pressurizing the pump and
then releasing that pressure into the flow path toward the waste beaker.
The pump refills, pressurizes, releases pressure, and empties for each iteration of the script.
While the script runs, it calculates the pressurization time dynamically based on
measurements from previous iterations and measures the pumped volume required to reach
200 bar.
Note Because the solvents are slightly compressible and the pump itself expands, even an
air-free pump allows some pumping before reaching 200 bar.
Depending on the solvents, a pumped volume less than 12 µL for the pump module is
acceptable.
Figure 22 shows the parameters for the Flush Air script.
Figure 22. Flush Air script parameters
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Maintenance Scripts and Service Records
EASY-nLC 1200 Troubleshooting & Maintenance Guide
Maintenance Scripts
33