Easy 40+ - Troubleshooting

8
7. Troubleshooting
Trouble
Possible Reason
Correction
Droplets left inside the tip
Unsuitable tip, non-uniform wetting of
the plastic
Use new tip
Leakage or Pipetted volume too small
Tip holder (cone) scratched or
damaged
Change the tip cone
Organic solvent as liquid
Aspirate & discard the organic solvent
several times before actual pipetting
by the same tip
Tip incorrectly attached
Attach firmly
Unsuitable tip
Use new tip
Foreign particles between tip and tip
cone
Clean the tip cone
Insufficient amount of grease on piston
& O-ring
Clean & grease O-ring and piston
O-ring not correctly positioned or
damaged
Change the O-ring
Inaccuracies
Incorrect operation
Follow instructions carefully
Calibration altered
Recalibrate according to instructions
Unsuitable for the particular liquid
pipetting technique
Use correct pipetting technique
Instrument damaged
Send to repair
Push button jammed or moves
erratically
Piston contaminated
Clean & Grease O-ring and piston
Penetration of solvent vapors
Tip ejector jammed or moves
erratically
Tip cone contaminated from outside
Remove ejector collar and clean tip
cone’s outer surface with ethanol
Volume setting is not properly click
stopped
Click stop mechanism damaged
Send for repair
Push button does not turn for volume
setting
Use of excessive force beyond the
range of pipette
Send for repair