BRAND HandyStep touch, Operating Manual

Page: 70 / 234

70
Aspirating liquid
Fill the tip if empty
Condition

An operating mode has been selected.
 On the touchscreen display, the message ‚Press
STEP to fill‘ appears.
a. Hold the tip vertically in the vessel.
b. During aspiration, make sure that the tip opening
is always covered by liquid, in order to prevent
air bubbles in the tip.
c. Press the STEP button.
 The tip is filled until the set volume or the nomi-
nal volume is reached.
NOTICE
Reverse stroke (play compensation)
During filling, the device performs a reverse stroke, which guarantees
accuracy of the STEP volume setting. This way, the first STEP does not
have to be discarded.
Interrupting filling of the tip
a. To interrupt filling of the tip, press the STEP button.

Filling is suspended immediately. You can dispense the aspirated volume
again with the STEP button, drain the tip or resume the filling process.
Filling a partially emptied tip
a. b. c. 
Switch to refill. Hold the tip verti-
cally in the liquid. Press the STEP button 2 times
in quick succession. The liquid
is aspirated until the nominal vo-
lume has been reached. To stop
filling the tip, press the STEP
button. The operating mode
appears again. You
can continue dispen-
sing.