Thermo Scientific Surveyor UV Plus Hardware Manual page 48

3
Maintenance
LightPipe Flow Cell
32 Surveyor UV/Vis Plus Detector Hardware Manual
4. Being careful not to touch the ends of the flow cell, hold the flow cell with the alignment
slot facing upward as you insert it into the mounting assembly.
5. Secure the flow cell in the mounting assembly as follows:
a. Pull the retention bar down over the alignment slot in the flow cell (see
page 29).
b. Align the retaining block with the notch in the base of the assembly.
c. Slide the thumbscrew onto the retention bar. Then, push the retaining block firmly
against the flow cell and tighten the thumbscrew fingertight
6. Reattach the photodiode mount as follows:
a. Carefully align the holes in the photodiode mount with the holes in the LightPipe
mounting assembly. Be careful not to touch the photodiode while manipulating the
photodiode mount.
b. Using the 3/32 in. hex wrench (supplied), screw in and tighten the two photodiode
mount retention screws (see
7. Guide the tubing through the slots in the top and bottom of the flow cell compartment
cover.
8. Using the 1/8 in. hex wrench (supplied), secure the cover by screwing in the flow cell
cover retention screw (see
IMPORTANT
To ensure optimum performance, do not run the UV/Vis detector
without replacing the flow cell cover. The LightPipe cover minimizes thermal
fluctuations. If you are using a previous generation LightPipe flow cell that has natural
PEEK end caps, install the flow cell cover before you power on the detector.
9. Connect the free end of the inlet tubing to the outlet of the LC column.
10. Close the front doors of the detector.
11. Before you start the pump flow, ensure that the outlet tubing drains to the waste reservoir.
Figure 20 on page
Figure 19 on page 28).
Figure 22
(Figure 21 on
28).
Thermo Scientific
on
page 29).