3 Maintenance Procedures
90
September 26, 2013, 715004208 Rev. A
Note:
If you are replacing the restrictor module in the ACQUITY UPC
2
Triple Detection Flow-splitter kit, you must also connect the outlet 4
tubing to the new restrictor module.
Tip:
To prevent contamination, install plugs on any unused restrictor
modules.
Replacing the inline 22-µL filter
Required material
Gloves: clean, powder-free, chemical-resistant
Required tools
•
1/4-inch, open-end wrench
•
5/8-inch, open-end wrench
•
22-
μ
L mixer/filter
To replace the 22-
μ
L filter:
1. Flush the ISM with non-hazardous solvent.
2. Stop the solvent flow.
3. Holding the 22-
μ
L filter in place with the 5/8-inch, open-end wrench,
disconnect the inlet compression fitting using the 1/4-inch, open-end
wrench.
Warning:
To prevent injury, always observe Good Laboratory Practices
when you handle solvents, change tubing, or operate the ISM. Consult
the Material Safety Data Sheets regarding the solvents you use.
Caution:
To avoid spreading contamination, wear clean,
chemical-resistant, powder-free gloves when replacing the 22-
μ
L
mixer/filter.