18
8.2. Diluting (dd) and diluting with mixing (dd+MIXING)
Two different solutions separated with an air gap are aspirated and then
dispensed together with an automatic blow-out. The purpose of the air gap
is to avoid contamination when aspirating the second volume but it will not
prevent the two liquids from mixing in the tip. In dd+mixing the dilution is
followed with the mixing function.
1. Press to display MULTI
2. Scroll with
until the symbol dd or dd+MIXING is
displayed.
3. Con
fi
rm by pressing
4. Select the desired diluent volume (volume 1) by using
Note:
When holding down
the volume display starts to
scroll faster.
5. Press or
to con
fi
rm the selection
6. Select the desired sample volume (volume 2) with
7. Press to con
fi
rm selection and to display the speed
in or press
and continue from Step 12.
8. Select the speed in with
(1= Min and 9 = Max)
9. Press
or
to con
fi
rm selection and to display the
speed out
10. Select the speed out with
(1= Min and 9 = Max)
11. Press
or
to con
fi
rm selections
12. Position the tip to aspirate the volume 1 and press the
START button
13. With the tip in the air press the START button
again
to aspirate an air gap
14. Position the tip to aspirate the volume 2 and press the START button
15. Position the tip to dispense and press the START button
▲
▲
▼
▲
Step 12
Step 13
Step 14
Step 15
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