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VWR
HIGH PERFORMANCE PIPETTOR
®
Wipe the entire pipettor with a soft-cloth or lint-free tissue impregnated with
soap solution, to remove all dirty marks. If the pipettor is very dirty, a brush
with soft plastic bristles may be used.
Wipe the entire pipettor and the tip-ejector with a soft cloth or lint-free tissue
soaked with distilled water.
Refit the tip-ejector and allow the pipettor to dry.
Internal cleaning
The following components only can be immersed in a cleaning solution: connecting
nut, tip-ejector, tip-holder, piston assembly, seal and O-ring.
Disassemble the pipettor as described in the chapter 12A - Maintenance.
Set aside the upper part in a clean, dry place.
Clean the individual components of the lower part of the pipettor using an
ultrasonic bath (20 minutes at 50°C) or with a soft-cloth and brushes.
Note that the piston assembly and seals must be degreased with isopropanol
or ethanol before being immersed in another ultrasonic bath.
Small round brushes with soft plastic bristles may be used to clean the
interior of the tip-holder.
Rinse the individual components with distilled water.
Leave the parts to dry by evaporation or wipe them with a clean soft-cloth or
lint-free tissue.
Reassemble the pipettor as described in the chapter 12A - Maintenance.
Cleaning for the Multichannel Models only
The pipettor must be cleaned, as described below, before it is
decontaminated.
Soap solution is recommended for cleaning these models.
The following components only can be immersed in a clean-
ing solution: tip-ejector and ejector spacer.
Remove the tip-ejector and the ejector spacer.
Immerse the tip-ejector, and ejector spacer in the cleaning solution or wipe
them with a soft cloth or lint-free tissue impregnated with the cleaning solution.
Rinse the components with distilled water.
22
FIGURE 19
Tip-ejector
Ejector spacer for 10µl models only
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