Thermo Scientific Finnpipette Handbuch Seite 9

3-10 µl: First slide O-ring tube 17 (larger hole first), bigger O-ring 18, smaller O-
ring 19 and O-ring support 20 on the piston. Then slide small spring 21, spring
support 22 (sharp edges against spring) and O-ring 22 on the O-ring support 20.
1-2 µl: First slide O-ring tube 17 (larger hole first) and sealing combination 18 on
the piston. Then slide small spring 19, spring support 20 (sharp edges against
spring) and O-ring 21 on the sealing combination 18.
All 1-40 µl: Carefully slide the entire assembly into the tip cone and release your fingers.
10. With the push button depressed all the way carefully attach the tip cone to the
handle so that the adapter opening is on the tip ejector side. Do not bend the thin
piston wire when assembling. Press in the snap joints.
11. Assemble the tip ejector and check the calibration according to the instructions.
DISASSEMBLING 41-1000 µl PIPETTES
1. Press the tip ejector.
2. Insert the pliers under the ejector bar to release the tip ejector.
3. Remove the tip cone using the maintenance pliers.
4. Pull out the piston.
5. Remove the O-ring, O-ring support and spring from the tip cone.
6. Clean the piston, the piston spring and the O-ring with a dry napless cloth.
7. Check the cylinder for foreign particles.
8. Grease the cleaned parts with the lubricant that comes with the pipette.
9. Slide parts over the piston pressing down the large spring. Attach the tip cone to the
handle so that the adapter opening is on the tip ejector side, and press in the snap joints.
10. Check the calibration according to the instructions.
DISASSEMBLING 2-10 ml PIPETTES
1. Press the tip ejector.
2. Insert the pliers under the ejector bar to release the tip ejector.
3. Remove the part 2 from part 1 of the tip ejector using the maintenance pliers to
release the snap joint.
4. Remove the cylinder by pressing part 1 of the tip ejector firmly towards the cylinder.
This action releases the snap joint so you can remove the cylinder.
5. Clean the O-ring and cylinder. Regrease the O-ring and the cylinder.
6. Assemble the parts in the opposite order of disassembly. All joints are snap fit and
can be pushed together by hand. Be careful not to bend the pipette during
assembly because this could damage the snap joints or the piston.
7. Check the calibration according to the instructions.
STERILIZATION
The entire pipette can be sterilized by autoclaving it at 121°C (252°F) (minimum 20
minutes). No special preparations are needed for autoclaving. You can use steam
sterilization bags if needed.
After autoclaving the pipette must be cooled to room temperature for at least two hours.
Before pipetting, make sure that the pipette is dry. We recommend that you check the
calibration of 1-1000 µl pipettes after every 25th sterilization cycle and of 2-10 ml
pipettes after every 10th sterilization cycle.
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