Thermo Scientific EASY-nLC 1200 Troubleshooting And Maintenance Manual page 217

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• If the flow is >100 nL/min, go to the next step.
9. Check the grounding adapter at port 3 of valve S as follows:
i. On the Home > Overview page, set valve S to the Center position to return the
system to atmospheric pressure.
ii. Remove the grounding adapter from valve S by following these steps:
- Disconnect the nanoViper fitting of the Waste-In capillary and the grounding
adapter from port 3 to valve S.
- Reinstall the nanoViper fitting of the Waste-In capillary in port 3 of valve S.
IMPORTANT The grounding adapter is removed for troubleshooting purposes only.
Operation without the grounding adapter can lead to irreparable damage of the
valves!
iii. On the Home > Overview page, reset valve S to position 1-2.
iv. With the Analytical Column Equilibration script running, monitor flow sensor
A. Then, depending on the flow rate, do one of the following:
• If the flow is <100nL/min, install a new grounding adapter. Then, reconnect the
Column-Out solvent line and rerun the system leak test as described in
"Running a System Leak Test"
For ordering information, see
Parts."
• If the flow is > 100 nL/min, valve S might be leaking. Please contact product
support.
Figure 154 shows port 3 of valve S plugged with a Viper blind plug.
Figure 154. Port 3 of valve S plugged with a Viper blind plug
From the
mixing Tee
Troubleshooting the Results of the System Leak Test
on page 178 "
Appendix C, "Consumables and Replacement
Viper blind plug in port 3 of
valve S
EASY-nLC 1200 Troubleshooting & Maintenance Guide
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Troubleshooting
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