Titration; Options - BRAND HandyStep touch Instrucciones De Manejo

14 Titration

14.2 Titration
This section explains how to use the titration operating mode using the color change of a pH value
measurement as an example. You can switch the titration mode using the

14.3 Options

a. In the operating mode, tap on the symbol
ð The Options menu appears.
Option
Add to Favorites
Manual/STEP volume
Show last volumes
Operating Mode Help
Show last volumes
94
Operating manual
Prerequisite:
> You will need a transparent vessel, e.g. an Erlenmeyer
flask, and the liquids required for the pH measurement.
a. Select the
amount of liquid. Select the dispensing speed using the
button.
b. Aspirate the liquid. Hold the device vertically above the
Erlenmeyer flask.
c. Hold the STEP button to continuously dispense liquid.
d. Observe the immersion of the standard solution in the
sample. As you near the color change point, switch to the
mode.
ð The color change point is distinguished by the first color
streaks in the sample.
e. Tap on the
f. Dispense the solution drop by drop by briefly pressing
the STEP button until the color change is achieved.
.
Meaning
Adds active settings to Favorites. You can open these again from the
main menu under Favorites.
Switches titration mode
Displays the last volumes titrated.
Shows the help text for the mode.
The list shows the last 5 volumes that were saved by you.
Newly saved volumes are added to the top, while older vol-
umes are discarded.
or
mode, in order to first dispense a large
button. Set the desired volume.
HandyStep® touch, HandyStep® touch S 997486
button.