BRAND Macro Instrucciones De Manejo página 22

Pipetting
Note:
The further up the lever is pressed, the stronger the suction
becomes and the quicker the meniscus rises.
In the case of large pipettes > 50 ml the vacuum contained
in the suction bellows is not sufficient to draw in all the liquid
at once. Therefore, squeeze the suction bellows again and
continue drawing up liquid.
4.
Adjust the volume
Use suitable lint-free tissue to wipe the pipette
tip, if necessary. Press the pipetting lever
down slowly, until precise adjustment of the
meniscus has been achieved.
5.
Dispense the pipette
Hold the collecting vessel in an inclined posi-
tion. Place the pipette tip against the inner
vessel wall and press the pipetting lever down
to dispense.
5.1 In the case of pipettes
with a waiting time
(Imprint e.g., 'Ex + 5 s'):
– As soon as the meniscus in the pipette
comes to a standstill, start waiting time as
is indicated on the pipette (here: 5 s).
– Wipe the pipette tip a few millimeters
upward along the wall of the vessel.
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