Locating Leaks In Or Between Valve S And Valve W - Thermo Scientific EASY-nLC 1200 Troubleshooting And Maintenance Manual

7
Troubleshooting
Troubleshooting the Results of the System Leak Test

Locating Leaks In or Between Valve S and Valve W

Figure 149. Workflow for locating leaks in the solvent path between valves S and W or in these valves (Part 1)
Valve W might be leaking. Please
contact product support.
188 EASY-nLC 1200 Troubleshooting & Maintenance Guide
If the system leak test returns the following message, follow the workflow in
Figure 150 or the procedure on pages
Check from valve S to valve W, including valve W, for leaks.
System leak test fails and returns the following message:
Check from valve S to valve W, including valve W, for leaks.
Redo the nanoViper fitting connections to the leak test union
Start the Analytical Column Equilibration script
No
Done
Tighten the Viper blind plug in port 1 of valve W
No
Done
Set valve W to the Center position
No
179–196 to locate and remedy the leak.
(step 22
Readback
for flow sensor A
> 100 nL/min
Yes
(step 3a
Readback
for flow sensor A
> 100 nL/min
Yes
(step 3a on page
Readback
for flow sensor A
> 100 nL/min
Yes
Go to Figure 150
on the next page.
Figure 149
(step 11)
on page 190).
on page 191).
200).
and
Thermo Scientific