Hach-Lange TENSETTE plus User Manual - Handbuch (Seite 21)

Operation
21
4.4 STEPPER (multi dispensing)
With the STEPPER function repeated dispensing of selected volume
is possible.
1. Choose the STEPPER function.
2. Select the pipetting volume simply by pressing the scroll key up
or down.
Note: The display shows always the maximum number of steps during
volume selection.
3. Accept the volume with OK.
4. Then choose the number of steps with the scroll key and accept
with OK.
Note: Optionally select the speed.
5. Select SPEED and the speed-in starts to blink.
6. Select the speed-in with the scroll key and accept with OK.
7. Select the speed-out with the scroll key and accept with OK.
8. Fill a clean reagent reservoir with the liquid to be dispensed.
9. Dip the tip under the surface of the liquid and press the trigger.
This action will fill the tip.
10. Withdraw the tip from the liquid touching it against the edge of
the reservoir to remove excess liquid.
11. Deliver the preset volume by pressing the trigger. The display
shows the number of steps left.
12. Continue dispensing by repeating step 9. After last step
BLOWOUT is displayed.
13. To empty the tip completely, press the trigger.
Change the tip and continue pipetting.
Note: The pipette can be emptied at any time by pressing CANCEL (left
selection key
Figure 2 Pipette operation on page 15 , item 6 ).