Half-Yearly Maintenance - Thermo Scientific EASY-nLC 1200 Troubleshooting And Maintenance Manual

Half-yearly Maintenance

Thermo Scientific
Figure 20. Cooler area of Autosampler dialog box
❖ To check the autosampler pickup function
Run the Sample Pickup script to check the sample pickup function (see
on page 42).
❖ To check the EASY-nLC solvent system for leaks
Run the Leaks script for "A+B" and for "System," to check for and diagnose instrument
leaks. For more information, see
on page 178).
❖ To check the check valves
Run the Purge Solvent script (see
• When the pumps are ejecting solvent, make sure that solvent is exiting the A and B
waste tubing into the waste beaker.
• When the pumps are refilling, make sure that no solvents are going into the pump
through the waste tubing.
If you detect a leaking check valve, replace it.
Check the flow sensor calibration.
❖ To check the flow sensor calibration
Run the Flow Sensor calibration script with the Inspection Only parameter enabled (see
"Flow Sensors" on page
This checks that the flow sensor calibration is working within specifications.
Note If the last flow sensor calibration dates back more than 6 months, a reminder
will be shown on the home screen.
Set point Actual
temperature temperature
"Leaks" on page 44
"Purge Solvent"
52).
EASY-nLC 1200 Troubleshooting & Maintenance Guide
2
Maintenance Schedule
Half-yearly Maintenance
"Sample Pickup"
and "Running a System Leak Test"
on page 32) and do the following:
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