Troubleshooting
| Symptom |
Cause |
Action |
| Liquid drops out from the
tip, pipetted volume incorrect |
Tip is loose |
push tip on tightly |
| The shaft nut is loose |
tighten the shaft nut |
| The sealing surface damaged |
replace damaged parts |
| The piston damaged or seal worn out due
to extensive use |
replace damaged parts then wash the
housing and lubricate the seal and o-ring with silicone
lubricant |
| The tip is damaged or worn out due to
extensive use |
replace the tip with a new one |
| Droplets of air appear in
the aspirated liquid |
The pipette tip immersion is too shallow |
immerse the tip deeper accordingly to
the instruction |
| Liquid is aspirated too fast |
decrease the speed of aspiration |
| The pipette tip is inadequately pressed
onto the pipette cone |
press the tip harder |
| Droplets of liquid remain in
the pipette tip |
The pipette is emptied too fast |
decrease the speed of pressing the
pipette pushbutton |
| The tip wettability has increased due to
extensive use |
replace the tip with a new one |
Methods of solving problems and complete pipette
assembly are described in detail in each
Instruction Manual.
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