BRAND Transferpette-8 Gebrauchsanleitung Seite 72

10 Maintenance
10 Maintenance
In order to ensure proper functioning, the Transferpette® -8/-12 electronic should be serviced at regu-
lar intervals and cleaned as necessary.
What must be checked?
a.
Check the pipette shafts, pistons, and seals for damage and contamination.
b.
Check the device for leaks. We recommend using the BRAND leak detector, the BRAND PLT unit.
As an alternative to this, aspirate a sample and hold the instrument vertically for approx. 10 s. If drops
form at the pipette tips, see Troubleshooting, p. 81.
10.1 Separate the pipetting unit from the handle
Example pipetting unit up to 100 µl
a.
Eject the pipette tips.
b.
To separate, pull the pipetting unit from the handle downward as far as possible. Only then, turn
it clockwise. After one revolution, the unit no longer needs to be pulled downward while turning.
c.
If the pipetting unit is unscrewed, it must be pulled down again in order to disconnect the mag-
netic coupling.
> When assembling, the pipetting unit must be screwed counter-clockwise onto the handle so that it
clicks into place.
> When assembling, do not pull the pipetting unit downwards.
> Improper handling can lead to damage.
72
Operating manual
Example pipetting unit up to 1250 µl
NOTICE
Transferpette® -8/-12 electronic 997200