PerkinElmer OilExpress 4, User Manual

Page: 103 / 152

Maintenance and Troubleshooting . 103
Disassembling the Flow Cell for Deep Cleaning
The following procedure describes how to disassemble, clean and reassemble the flow cell.
You can purchase the optional Flow Cell Maintenance Kit (part number L1272495) which
contains replacement ZnSe windows and a cell gasket kit. Windows and gaskets are also
available separately – refer to
Spares and Consumables
on page 141.
Alternatively, you can arrange for your flow cell to be refurbished by PerkinElmer (Flow Cell
Refurbishment L1272490R). Contact your PerkinElmer Customer Care representative for
more information.
WARNING
Take care not to touch the zinc selenide (ZnSe) windows when handling
the flow cell, or wear protective gloves. Zinc selenide is toxic by
ingestion. Avoid contact with skin or eyes. DO NOT use strong acids or
bases to clean the windows, as these can damage the windows. Reaction
with acids will release a toxic and irritating gas (H
2
Se). Keep away from
oxidizing materials.
NOTE: The torque driver (part number L9003631) and 3 mm hexagonal bit
(part number L9003632) supplied must be used to reassemble the flow cell. Using
other tools could cause the flow cell windows to crack or break.
1. Follow the procedure in
Removing and Installing the Flow Cell
on page 97 to remove
the flow cell from the sample shuttle.
2. Using a 3 mm hexagonal wrench, undo and remove the four hexagonal screws from the
front of the flow cell (Figure 60) to disassemble the flow cell.
If the rubber gasket does not come away from the back window and back of the cell,
you can clean the back window with it in place.
However, if you need to replace the gasket, leave the cell dismantled for a few hours
for the gasket to relax. If you still cannot remove it, then carefully insert the tip of a
scalpel between the gasket and the back of the cell and move round the edge of the
gasket until it comes free.