Biotek ELx808, Operator'S Manual, Page: 126 / 172

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| Chapter 5: Preventive Maintenance
4.
If detergent was used, wipe all surfaces with a cloth moistened with water.
5. Use a clean, dry cloth to dry all wet surfaces.
Inspect and Clean the Wavelength Filters
Important! To properly store interference filters for the
ELx808 during extended periods of non-use, package the
filters in a light-tight envelope or container, away from
high humidity and direct sunlight. This will ensure the
longest life for the filters. When handling the filters, keep
the surfaces clean from fingerprints and debris by simply
wiping with a lens tissue or other lint-free cloth.
Laboratory air is used to cool the lamp, and the wavelength filters can become dusty as a
result. The filters should be inspected and cleaned at least every three months. You will
need:
•
Tape
•
Screwdriver
•
Isopropyl, ethyl, or methyl alcohol
•
Lens-cleaning tissue
To inspect and clean the wavelength filters:
1. If you have not already done so, turn off and unplug the reader.
2. Temporarily tape the reader’s plate access door shut.
3. Using your fingertips, locate the seven perimeter screws around the sides and
front where the reader’s top shroud meets the base. Remove the screws using a
screwdriver.
™
Tip: Bring the reader to the edge of the work surface to access the
screws without having to turn the reader upside down.
4. Carefully raise the front of the shroud and tip it toward the back of the
instrument.
5.
The filter wheel is located in the left-rear quadrant inside the reader. Remove
the filter wheel by pulling it off its magnetic hub.
6. Inspect the glass filters for speckled surfaces or a halo effect. This may indicate
deterioration due to moisture exposure over a long period of time. If you have
any concerns about the quality of the filters, contact your BioTek
representative.
BioTek Instruments, Inc.