BRAND HandyStep touch, Operating Manual

Page: 83 / 234

English
83
‘Sequential’ filling mode
In ‘Sequential’ filling mode, you control liquid aspiration using an aliquot list
(1 ... 10 aliquots). In this table, different volumes can be defined, which are
aspirated successively in this operating mode. Each time the STEP button is
pressed, the current volume is aspirated. The program then switches to the
next volume in the aliquot list, and this continues until all preset aliquots are
aspirated. In the operating mode, you then see up to 3 entries of the aliqout
list. These entries – specifically, the previous, current and next entry – are
indicated by a number sign (#). If an aliquot is aspirated, the display moves
down the list (
1
, #2,

#1,
2
, #3

#2,
3
, #4 ... #10). The device automa-
tically switches to liquid dispensing when the desired volume or the nominal
volume is reached.
Dispensing liquid
You can switch back and forth between liquid aspirating and dispensing
using the and buttons.
a. Tap on the button.

The message ‚Hold STEP to purge‘ appears.
b. To dispense liquid, hold down the STEP button.
To cancel liquid dispensing, press the X button. If the tip is emptied, the
program switches back to liquid aspiration.
Creating and editing an aliquot list for liquid aspiration
a. Select ‚Sequential‘ filling mode.
b. Select Options > ‘Edit Aliquots’ or tap on #1 ... #10.
c. Create and edit the aliquot list as described in the
„Sequential Dispen-
sing (SEQ-DISP)“ operating mode in the section „Creating an aliquot
list“ → 81 and the section „Editing an aliquot list“ → 81.
Switching the operating mode
a. Tap on the button.
b. If the tip is filled, a message appears asking if you would like to switch
modes with the filled tip.
c. If only a residual amount is still present, a message then appears asking
if you would like to discard the liquid. Once you confirm the message,
the liquid is dispensed.
Options
a. In the operating mode, tap on the symbol .
 The Options menu appears.
Option Meaning
‘Edit Aliquots’ Edit an aliquot list.
‘Select Fill Mode’ Select a filling mode.
‘Help Work Mode’ Shows the help text for the mode.