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English
Possible reason
Tip incorrectly attached
Foreign particles between tip
and tip cone
Foreign particles between the
piston, the O-ring and the cylinder
Insufficient amount of grease
on cylinder and O-ring
O-ring damaged
Incorrect operation
Tip incorrectly attached
Calibration altered: caused
by misuse, for example
Unsuitable calibration
High viscosity liquids may
require recalibration
Pistons stuck or not connected
Defect
Leakage
Inaccurate
dispensing
Inaccurate
dispensing with
certain liquids
No dispensing
Solution
Attach firmly
Clean tip cones attach new tips
Clean and grease O-ring and cylinder.
Grease accordingly
Change the O-ring
Follow instructions carefully
Attach firmly
Recalibrate according to
instructions
Recalibrate with the liquids in question
Remove tip cone module. Move piston
by hand or with piston removal tool.
Attach the module in service mode.
5. Push the tip cone into the handle while holding the ejector top 11 down, until you hear a “click”.
6. Reassemble the lower tip ejector sleeve 13 (snap fitting).
7. Press trigger to reconnect the piston to drive mechanism.
8. Press READY to return from service mode.
Sterilization
The tip cone module can be sterilized by autoclaving it at 121°C (252°F) (2 ata) for 20 minutes. You
can use steam sterilization bags if needed.
1. Remove the lower tip ejector sleeve 13 by pulling it out (snap fitting).
2. Push down the ejector button and take the upper ejector top 11 between fingers.
3. Release the ejector button to up position, but hold the tip ejector top 11 in down position
with the fingers.
4. Remove the tip cone by pulling it out (snap fitting).
5. Press and hold the trigger down to drive out the piston.
6. Insert the special piston removal tool and pull out the piston 14. The number 2 end is for
300 µl and 1000 µl pistons, the number 1 end for all the smaller volumes.
See picture
on page 12.
Release the trigger.
7. Remove spring hatch 25 by pressing it down and in the same time turning 90 degrees.
Take out the spring 16.
8. Autoclave all module parts at 121°C (252°F) for 20 minutes.
9. Let the parts cool down to room temperature for at least two hours.
10. With pipettes up to 100 µl reassemble the plate 25 and spring 16.
With pipettes 300 µl and 1000 µl reassemble the spring 16.
11. Attach the module back to the pipette as described in Maintenance section.
After autoclaving the module must be cooled to room temperature for at least two hours. Before
pipetting, make sure that the module is dry. We recommend that you check the calibration after
every sterilization cycle.
Trouble shooting
The table below lists possible problems and their solutions.
CAUTION!
The Finnpipette is designed to allow easy in-lab service. If you would prefer to have us or
your local representative service your pipette, please make sure that the pipette has been
decontaminated before you send it to us.
Please note that the postal authorities in your country may prohibit or restrict the shipment of
contaminated material by mail.
