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 device.

Frequency

What you should do...

Daily

  • Inspect the flow connections for signs of leakage or blockage.

  • When you use buffers or salt solutions, flush the device thoroughly after use with an appropriate solvent that does not contain buffers or salts.

  • Water or highly aqueous (< 5% organic modifier) mobile phases are highly susceptible to microbial growth. Prepare such 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 device 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

The Chromeleon software supports functions for estimating the lifetime of consumables (see Predictive Performance).