Thermo Scientific EASY-nLC 1200 Troubleshooting And Maintenance Manual page 211

Figure 150. Workflow for locating leaks in the solvent path between valves S and W or in these valves (Part 2)
Install a new Waste In line.
Then, rerun the system leak test
(page 178).
Reconnect the solvent lines and
rerun the system leak test to
confirm that the system is leak
tight (page 178).
Install a new Column Out line.
Then, rerun the system leak test
(page 178).
Thermo Scientific
Redo the nanoViper connection to port 2 of valve W
No
Done
Disconnect the Waste In line from the leak test union
Then, block the free end of the union with a Viper fitting.
No
Redo the nanoViper connection to port 3 of valve S
No
Disconnect the Column Out line from port 3 of valve S
Then, block port 3 of valve S with a Viper fitting.
No
Service valve S (page
(Continued from
Figure 149.)
(step 5
Readback
for flow sensor A
> 100 nL/min
Yes
(step 77
Readback
for flow sensor A
> 100 nL/min
Yes
(step 88
Readback
for flow sensor A
> 100 nL/min
Yes
(step 9•
Readback
for flow sensor A
> 100 nL/min
Yes
82). Then, rerun the system leak test.
EASY-nLC 1200 Troubleshooting & Maintenance Guide
7
Troubleshooting the Results of the System Leak Test
on page 192)
on page 193).
on page 194).
on page 195).
Troubleshooting
189