Thermo Scientific EASY-nLC 1200 Troubleshooting And Maintenance Manual page 239

Thermo Scientific
❖ To troubleshoot a system blockage when only the Test Solvent B test fails
1. To determine if the blockage is in the mixing Tee, do the following:
a. Make sure that the Column Out line is connected to the Waste In line with a union.
b. Remove the solvent line from the mixing Tee that connects it to flow sensor B.
c. Repeat the Back Pressure script with the Test Solvent B check box selected.
Troubleshooting a System Blockage
1. Mixing Tee
2. Flow sensor outlet to the
mixing Tee
4. Flow sensor
6. From valve B (port 6) to the
flow sensor inlet
7. Valve B
8. Valve B (port 1)
to the pressure sensor
–or–
the pressure sensor
EASY-nLC 1200 Troubleshooting & Maintenance Guide
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Troubleshooting
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