LabCo 550.001.200, User Manual, Page: 4 / 8

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Note: Do not allow liquid to enter the filler. The function of the filter will be severely impaired reducing suction efficiently.
Spare filters are available. The further up the lever is pressed, the stronger the suction becomes and the quicker the
meniscus rises.
In the case of large pipettes the vacuum contained in the suction bellow is not sufficient to draw in all the liquid at once.
Therefore, press the suction bellows again and continue drawing the liquid.
3. Adjust the meniscus
Wipe the pipette with a suitable lint free tissue. Press the dispense lever down slowly until the required meniscus has been
reached.
4. Dispense the pipette
Hold the collecting vessel in an inclined position, placing the pipette against the collecting vessels. Press the dispense lever
down to empty the pipette.
5. In the case of ‘blow-out’ pipettes
As soon as the meniscus in the pipette comes to a standstill, press the blow-out bellows to expel the last few drops. To
ensure complete dispense procedure; wipe the pipette tip upwards a few millimetres along the inside wall of the collecting
vessel.
6. To ‘deliver’ pipettes
As soon as the liquid in the pipette comes to a standstill, wait for the period of time required to ensure the liquid has been
fully dispensed.
7. Remove the pipette
Hold the pipette at its upper end and gently twist and remove the silicone adaptor.
8. Replace the filter and clean the adaptor
If the pipette has been overfilled or the suction capacity is impaired, proceed as described below:
•
Remove the pipette
•
Unscrew the nose cone
• Remove the silicone adaptor out of the housing by pulling it upwards. Use a wash bottle to rinse the adaptor.
Blow out the liquid and allow to dry completely
•
Remove the filter and replace with a new one
•
Re-assemble
9. Leak test
Attach a pipette and aspirate liquid to a minimum of half the capacity of the pipette. Hold the pipette over a suitable
reservoir. If liquid drips from the pipette tip, dismantle the unit and reassemble correctly.