Thermo Scientific Vanquish VF-D20, Operating Manual, Page: 120 / 182

7 • Maintenance and Service
Page 120 Vanquish Charged Aerosol Detectors Operating Manual
7.4 Routine and Preventive Maintenance
Optimum detector performance, maximum uptime of the detector, and
accurate results can be obtained only if the detector is in good condition
and properly maintained.
7.4.1 Maintenance Plan
Perform the maintenance procedures in the table on a regular basis. The
frequency given in the table is a suggestion. The optimum frequency for
maintenance depends on several factors, such as the types and amounts
of samples and solvents used with the detector.
Frequency What you should do...
Daily Inspect the flow connections for signs of leakage or
blockage.
When using buffer solutions, flush the detector thoroughly
after use with an appropriate solvent that does not
contain buffers or salts.
The stability of the mobile phase may decrease over time.
Prepare mobile phases freshly on a daily basis.
Regularly Inspect the flow connections for damage, such as cracks,
nicks, cuts, or blockage.
Check that all warning labels are still present on the
detector and clearly legible. If they are not, contact
Thermo Fisher Scientific for replacement.
Annually Have Thermo Fisher Scientific service personnel perform
preventive maintenance once a year.
TIP Chromeleon supports functions for estimating the lifetime of
consumables (see section 7.4.4 Predictive Performance, page 123 ).