Thermo Scientific EASY-nLC 1200 Troubleshooting And Maintenance Manual page 67

Figure 32. Pressurized lines for a system leak test
Pump S
Pressure
sensor
Pump A
Pressure
sensor
Pump B
Pressure
sensor
Thermo Scientific
During a system leak test (Leaks script with System selected), the script pressurizes the flow
paths shown with red dashed lines in
movement, and identifies the location of a leak. Before you run a system leak test, you must
connect the Column Out line to the Waste In line with the appropriate union (see
page 46). The leak test for pump A and B should also be passed first, to make logical sense of
any potential failure reports from the System Leak Test.
1
2 6
A
3 4 5
Flow sensor
1
2 6
B
3 4 5
Centered
Note Please note the numbering of the valve ports as depicted in
numbering with valve port 1 in 4 o'clock position). Due to operational reasons, the
graphical representation in this guide or in the instrument's built-in software may
show the valves in a different orientation. Please use only the port numbers for
identification of port positions.
Figure 32, monitors the flow sensors and pump piston
Autosampler needle
↓ Flow sensor
2
3
Mixing Tee
Column Out line
Waste In Line
2
3
EASY-nLC 1200 Troubleshooting & Maintenance Guide
3
Maintenance Scripts and Service Records
1
6
S
4 5
1
6
W
4 5
Figure 9
Maintenance Scripts
Table 9 on
(clockwise
45