Trouble Shooting - Biohit PROLINE PLUS Instruction Manual

12. TROUBLE SHOOTING

Symptom
Droplets left inside
the tip
Leakage or pipetted Non-uniform wetting
volume too small
Pipette out of
established
specifi cations
Operating button
or moves
erratically
Tip ejector jammed
or moves erratically
Possible cause
Unsuitable tip
of the plastic
Tip incorrectly
attached
Unsuitable tip
Foreign particles
between tip and
tip cone
Tip cone holder
incorrectly tightened
Pipette damaged
Incorrect operation
Unsuitable tip
Calibration altered
Liquid has penetrated Clean and grease
tip cone and dried
Safe Cone fi lter has
been contaminated
Insuffi cient amount of
grease on a piston
and seal
Tip ejector collar has
been contaminated
Solution
Use original tips
Attach new tip
Attach fi rmly
Use original tips
Clean the tip cone,
attach new tip
Tighten the tip
cone holder
Return to your
Biohit service
representative
for servicing
Follow instructions
Use original tips
Recalibrate
jammed the piston
/seal and the tip
cone
Change fi lter
Grease
accordingly
Remove and clean
the ejector collar
and tip cone
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