Biohit Proline - Troubleshooting

10. Troubleshooting
Trouble Possible cause Solution
Droplets left Unsuitable tip Use original Biohit tips
inside the tip
Non-uniform wetting Attach new tip
of the tip plastic
Leakage or Tip incorrectly attached Attach firmly
pipetted volume
too small Unsuitable tip Use original Biohit tips
Foreign particles Clean the tip cone,
between tip and tip attach new tip
cone
Instrument Clean and grease
contaminated O-ring and piston,
clean the tip cone (*)
Insufficient amount of Grease accordingly
grease on piston and
O-ring
O-ring not correctly Change the O-ring
positioned or damaged
Incorrect operation Follow instructions
carefully
Calibration altered or Recalibrate according
unsuitable for the liquid to instructions
Instrument damaged Send for service
Push button Piston contaminated Clean and grease
jammed or O-ring and piston,
moves erratically clean the tip cone (*)
Penetration of solvent Clean and grease
vapours O-ring and piston,
clean the tip cone (*)
Pipettor blocked, Liquid has penetrated Clean and grease
aspirated volume tip cone and dried O-ring and piston,
too small clean the tip cone (*)
Tip ejector Tip cone and/or ejector Clean the tip cone and
jammed or collar contaminated the ejector collar (*)
moves
erratically
(*) Clean with Biohit Proline Biocontrol or 75% ethanol.
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