Maintenance considerations 3-3
Seal life
Seal life of three to six months or longer is possible, but is highly dependent on
the following:
• Mobile phases and modifiers used
•Flow rate
• Use of seal-wash
•Back pressure
• Cleanliness of the mobile phases
•Usage
When to perform maintenance
Perform maintenance procedures when you discover a problem with a specific
component in the binary gradient module. For information about isolating
problems in the binary gradient module, see Troubleshooting.
Warning: To prevent injury, always observe good laboratory
practices when you handle solvents, change tubes, or operate the
binary gradient module. Know the physical and chemical properties
of the solvents you use. Refer to the Material Safety Data Sheets for
the solvents in use.
Binary gradient module components
Component Function
Vent valve Allows priming and venting.
Seal-wash pumps Provides solvent to wash the plungers and plunger
seals.
Pressure transducer Senses back pressure developed by resistance to the
solvent flow.
Inline filter Provides solvent filtering between the binary
gradient module and the sample manager.
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