Options; Titration; Titration In Detail - BRAND HandyStep touch Instrucciones De Manejo

13.7 Options

a. In the operating mode, tap on the symbol
ð The Options menu appears.
Option
Edit aliquot list
Select filling mode
Operating Mode Help

14 Titration

For information on the function of this mode, see Overview of modes, p. 75. For information on setting
the volume, speed, and other steps found in all modes, see Operation, p. 76.

14.1 Titration in detail

In Titration operating mode, you dispense liquid (standard solution) into another liquid (sample), e.g.
to observe the color change. There are 2 different titration modes available for this task:
'Manual' titration mode
In 'Manual' titration mode, you control liquid dispensing using the STEP button. Liquid is dispensed
while you hold down the STEP button. Liquid dispensing stops when you let go of the STEP button or
when the existing volume in the tip is dispensed. Every time the STEP button is released, the dispens-
ing speed is reduced on level (level 8, level 7, level 6 ... level 1). This makes it easier to achieve a color
change point, for example.
'STEP volume' titration mode
In STEP titration mode, you specify the STEP volume before dispensing liquid. Each time the STEP
button is pressed, the set volume is dispensed. The dispensing speed is also reduced each time the
STEP button is pressed.
Saving volumes
This function is used to save the most recently set volumes in a list. If you use the same volume set-
tings for the same titration tasks, you can use this function to achieve a color change point more
quickly. To call up a list, see Options, p. 94.
HandyStep® touch, HandyStep® touch S 997486
.
Meaning
Edit an aliquot list.
Select a filling mode.
Shows the help text for the mode.
1 Switch between 'Manual' and 'STEP Volume' titration
1
mode.
2 Set the STEP volume. This is possible in "STEP volume"
2
titration mode.
3 Volume already titrated.
3
4 Amount remaining in the tip.
4
5 Discard remaining amount or aspirate liquid.
5
14 Titration
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Operating manual