Manual

33
Operation
Multipette
®
/Repeater
®
(X)stream
English (EN)
The display will then show:
4. Hold the Multipette Xstream/Repeater Xstream over a waste container or the supply
vessel and press the actuate key.
The reverse stroke is performed. This step is not a dispensing step.
5. Hold the Combitip over the tube into which the liquid is to be titrated.
Start titration
6. Keep the actuate key pressed or press the key step by step to dispense the liquid.
If the actuate key is released, the piston movement stops and the display shows the
total of previously titrated volumes.
The speed decreases with each dispensing step. In this way you can reach the final
point of titration.
7. If the titration is completed before the Combitip is empty hold the Multipette Xstream/
Repeater Xstream over a waste container and press the reset key to empty the
Combitip.
After the emptying process is complete, the display shows the result of titration.
If the full volume of the Combitip is required the following will be shown on the
display:
8. There are two possible variants for continuing execution:
• Renewed aspiration
a Immerse the Combitip into the liquid to be aspirated.
b Press and hold the actuate key for 2 seconds to aspirate the liqued. You can
continue titration afterwards. The dispensing volumes are added to the
previously titrated volume.
The volume of at least 10 fillings of a Combitip can be displayed. An out-of-range
reading is indicated by "nnnnn".
• Empty the Combitip completely and remove
a Hold the Multipette Xstream/Repeater Xstream over a tube to dispense the
residual liquid.
b Press the actuate key twice to empty the residual liquid. The display then shows
the titrated volume.
c Remove the Combitip. The volume display is then extinguished.
The volume of the last correctly completed titration is saved and displayed in the
device settings (see p. 34).
next step
Discard
2.Short = empty
1.Short = no step
Long = aspirate