Troubleshooting - Labnet BioPette A Series Instruction Manual

Ultra Violet (UV) Sterilization
The pipettors are UV resistant. The distance from the
radiation source to the exposed element of the pipettor
should be at least 50 cm. Prolonged or intense UV
exposure can cause discoloration of pipettor parts but
does not affect its performance.

11. Troubleshooting

If a problem is encountered during pipettor operation,
use the following table to identify and eliminate the fault
following the instructions provided. Replacement of parts
should be required only occasionally and should not be
required with normal pipettor use.
Problem
Droplets of
liquid remain
in the pipet
tip.
Droplets
of air appear
in the liquid
aspirated
into the pipet
tip.
The pipettor
incorrectly
aspirates
the liquid
or the liquid
drops out
from the tip.
18 – LABNET BIOPETTE A PIPETTORS
Cause
The pipet tip is emptied
too fast.
The pipet tip wettability
has increased due to
extensive use.
The pipet tip immersion
depth is too shallow.
The pipet tip is incorrectly
pressed onto the pipettor
shaft.
The tip is damaged or
worn out due to extensive
use.
The pipettor tip is
incorrectly pressed onto
the pipettor shaft.
The shaft surface is
damaged or contaminated
at the sealing site.
Solution
Decrease the speed
of pressing the
pipettor pushbutton.
Replace the tip with
a new one.
Immerse the tip
to the recommended
depth according to the
instructions.
Press the pipettor
tip firmly onto the
pipettor.
Replace the tip with
a new one.
Press the pipet tip
firmly onto the
pipettor.
Clean the shaft or
replace it with a new
one.