Troubleshooting - Human HumaPette Smart-Line User Manual

troubleShootIng

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