18 – LABNET BIOPETTE PLUS PIPETTORS
10. Pipettor Maintenance
Depending on the applications and intensity of use, the
pipettor requires periodic maintenance. The components
exposed to corrosive vapors, such as shaft elements,
should be regularly checked and cleaned.
Do not use sharp tools for pipettor maintenance.
Itmay cause damage to the device and aect the user’s
safety.
Cleaning
External surfaces of the pipettor such as the pushbutton,
ejector pushbutton, handgrip, shaft nut, and adjustment
knob may be cleaned using a cloth dampened in isopropyl
alcohol. The remaining parts removed from the pipettor
during pipettor disassembly may be washed with distilled
water or isopropyl alcohol.
NOTE: Before using cleaning agents other than those
recommended by the manufacturer, check the compatibility
charts and consider chemical resistance of the following
plastics which form components of the pipettor: PP, PC,
POM, PA, PPS, PVDF.
Sterilization
Sterilization using an autoclave
The pipettor can be sterilized in an autoclave at 121°C
for 20 minutes. Sterilization under other conditions may
cause damage to the pipettor. It is recommended to:
• Unscrew the shaft nut slightly in the P3942-2/P3942-
1000 pipettors, and unscrew the shaft slightly in the
P3942-5000 and P3942-10000. After autoclaving these
parts should be screwed tight again.
• Set the locking ring to the lower (unlocked) position
prior tosterilization.
• Sterilize the pipettors using an autoclave with an initial
vacuum and drying cycle.
• After sterilization, the pipettor should be dried and
cooled to room temperature.
• The shaft of the P3942-5000 and P3942-10000 models
should be autoclaved without the lter.