9 titration, Titration – Eppendorf Multipette Xstream User Manual

Page 32

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32

Operation
Multipette

®

/Repeater

®

(X)stream

English (EN)

4. Hold the Multipette stream/Repeater stream 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 target vessel. Press the actuate key to dispense the liquid.

After complete dispensing, the display shows:

6. There are two possible variants for continuing execution:

Renewed aspiration
a Immerse the Combitip into the liquid to be dispensed.
b Press and hold the actuate key for 2 seconds to aspirate the liquid.

Empty the Combitip completely and remove
a Hold the Multipette stream/Repeater stream over a tube to dispense the residual

liquid.

b Press the actuate key twice to empty the residual liquid.
c Remove the Combitip.

5.9

Titration

(only Multipette Xstream/Repeater Xstream)

1. Prepare the Multipette Xstream/Repeater Xstream.

2. Immerse the Combitip into the liquid to be aspirated.

3. Press the actuate key to aspirate the liquid into the Combitip until it is completely

filled. If less liquid is to be aspirated than the nominal volume of the Combitip, stop
aspiration with the actuate key.
For the first aspiration of liquid the display shows:

In

Ttr mode, liquid dispensing takes place

automatically with the actuate key held
down or gradually with the actuate key
pressed repeatedly. If the actuate key is
released, the piston movement stops and
the dispensed volume will be displayed.
When titration continues, the dispensing
speed is reduced automatically. The speed
is also reduced when the +/- rocker switch
is locked.
The speed can be changed during titration
by moving the select rocker switch and
changing the speed with the +/- rocker
switch.

2.Short = empty

1.Short = no step

Long = aspirate

1

2

Aspiration for

new task

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