Thermo Scientific EASY-nLC 1200 Troubleshooting And Maintenance Manual page 215

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- Valve S: Center
- Valve W: 1-6
ii. Remove the grounding adapter from valve W by following these steps:
- Disconnect the nanoViper fitting in the Waste-In capillary and the grounding
adapter from port 2 of valve W.
- Reinstall the nanoViper fitting of the Waste-In capillary in port 2 of valve W.
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 valves A and S as follows:
- Valve S: 1-2
- Valve W: 1-2
iv. With the Analytical Equilibration script running, monitor flow sensor A. Then
depending on the flow rate, do one of the following:
• If the flow is 100 nL/min, install a new grounding adapter. Then, reconnect the
Waste-In solvent line and rerun the system leak test as described in
System Leak Test"
For ordering information, see
Parts."
• If the flow is >100 nL/min, go to the next step.
7. Check the Waste In line as follows:
i. On the Home > Overview page, change the position of the following valves to
return the system to atmospheric pressure:
- Valve S: Center
- Valve W: 1-6
ii. Using the black knurled nut to loosen the nanoViper fitting, disconnect the
Waste-In line from the leak test union. Then, block the free end of the union
with a Viper blind plug.
iii. On the Home > Overview page, reset valves S and W as follows:
- Valve S: 1-2
-Valve W: 1-2
Figure 153 shows the Waste In line disconnected from the leak test union and the
free end of the union plugged with a Viper fitting.
Troubleshooting the Results of the System Leak Test
on page 178.
Appendix C, "Consumables and Replacement
EASY-nLC 1200 Troubleshooting & Maintenance Guide
7
Troubleshooting
"Running a
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