Beckman Coulter LS 13 320, User Manual

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PN B05577AC E-1
APPENDIX E
Maintenance
Cleaning Procedures
It is important that all glass surfaces in your instrument and sample system are clean, as dusty or
coated optical surfaces can cause erroneous results. Some samples or suspension fluids may coat the
inside of the windows of the sample cell(s). If the instrument is in a dusty or smoky environment or
if vapors are present, the lenses and outer surfaces of the windows may become coated. Check the
optical surfaces for cleanliness at least every three months, and clean if needed. Depending on the
environment, cleaning may be required more frequently.
Cleaning Fluids
Beckman Coulter recommends the cleaning solution provided with your instrument to clean the
inner surfaces of the sample modules. Beckman Coulter also recommends LENS CLENS NO. 1 lens
cleaner for cleaning the lenses and sample cell windows.
Cleaning the Lens
High backgrounds or odd backgrounds can indicate dirty lenses. Inspect each lens' surface carefully
with a flashlight for dust, particles or smudges. Only clean a lens when needed. These lenses have a
special anti-reflective coating on them that is easily scratched.