User manual

1200 Series Variable Wavelength Detector User Manual 91
Maintenance 8
Disassembling
the Flow Cell
1 Unscrew the cell screw using a 4-mm hexagonal wrench.
2 Remove the SST rings using a pair of tweezers.
3 Use adhesive tape to remove the peek ring, the window and the gasket.
4 Repeat step 1 through step 3 for the other window (keep the parts separate
- otherwise they could be mixed!).
Cleaning the Flow
Cell Parts
5 Pour isopropanol into the cell hole and wipe clean with a piece of lint-free
cloth.
6 Clean the windows with ethanol or methanol. Dry it with a piece of
lint-free cloth.
Reassembling the
Flow Cell
7 Hold the flow cell cassette horizontally and place gasket in position.
Ensure both cell holes can be seen through the holes of gasket.
8 Place the window on gasket.
9 Place the peek ring on the window.
10 Insert the conical springs. Make sure the conical springs point towards the
window. Otherwise tightening the cell screw might break the window.
11 Screw the cell screw into the flow cell and tighten the screw.
12 Repeat the procedure for the other cell side.
CAUTION
Do not use tweezers to remove windows as the surfaces can easily be scratched.
NOTE
Always use new gaskets.
NOTE
The semi-micro #1 and #2 gaskets (items 6 and 7, “Semi-micro Flow Cell" on page 114)
look very similar. Do not mix them up.