Waters 2475, Operator'S Manual, Page: 145 / 228

Routine maintenance 4-3
Spare parts
Replace only the component parts mentioned in this document. See the
Waters Quality Parts Locator on the Waters Web site’s Service/Support page.
Routine maintenance
For sustained optimal performance, the 2475 detector requires minimal
routine maintenance:
1. Replace the HPLC system’s solvent reservoir filters regularly.
2. Filter and degas solvents to prolong column life, reduce pressure
fluctuations, and decrease baseline noise.
3. Flush buffered mobile phases from the detector with HPLC-grade water
followed by a 5 to 10% methanol solution each time the detector is shut
down.
Tip:
Flushing prevents the following problems:
• Plugging of the solvent lines and flow cell
• Damage to various components
• Microbial growth
Warning:
Avoid electric shock:
• Do not open the detector cover. The components within are not
user-serviceable.
• Power-off and unplug the detector before performing any
maintenance operation on the instrument.
Caution:
To avoid damaging electrical parts, never disconnect an
electrical assembly while power is applied to the detector. To
interrupt power to the detector, set the power switch to Off, and then
unplug the power cord from the AC outlet. Wait 10 seconds thereafter
before you disconnect an assembly.
Warning:
Using incompatible solvents can cause severe damage to
the instrument and injury to the operator. Refer to Appendix C for
more information.