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Care and Maintenance
The 3M Electronic Pipettor - 5mL requires regular cleaning to ensure trouble-free
operation. Use a soft cloth lightly moistened with a mild detergent to clean the outer
surface of the pipettor. DO NOT AUTOCLAVE.
Cleaning the Tip Cone
Monthly tip cone cleaning is recommended. However, with heavy use, clean more
frequently. If liquid enters the shaft, clean tip cone immediately.
1. Switch the unit “OFF”.
2. Remove the tip ejector collar: Hold down the tip ejector lever and twist off the tip
ejector collar.
3. Use a soft, lint-free wipe lightly moistened with ethanol to gently clean the tip cone.
4. Replace the tip ejector collar allowing the ejector handle connection to snap into
the attachment notch of the ejector collar.
Care and Maintenance
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Filter Replacement
If the pipettor is not performing due to a clogged filter or if sample fluid has
contaminated the filter, the filter should be replaced.
1. Remove the contaminated or clogged filter by simply pulling it straight out of the
end of the tip cone (see Figure 1).
2. Clean the outside surface and the inner filter placement surface of the tip cone
using a swab moistened with ethanol (see Figure 2).
3. Place the pipettor in the charging stand for 15 minutes to allow drying of the
tip cone.
4. Place a new filter into the tip cone (see Figure 3).
Care and Maintenance
Figure 3
Figure 1 Figure 2
Removing Contaminated or
Clogged Filter from Tip Cone
Cleaning the Tip Cone Before
Installing New Filter
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tip cone
ejector
collar
filter
Page 12 of 15 - June 2001