Metrohm 916 Ti-Touch - Manual (Page 316)

28.2 Monotonic equivalence point titrations (MET)
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
300 ￭￭￭￭￭￭￭￭
916 Ti-Touch
maximum
The maximum filling rate depends on the cylinder volume (see Chapter
31, page 406).
28.2.4 Potentiometric evaluation
The parameters for the evaluation of the titration curve are defined under
[Potentiometr. evaluation].
EP criterion
The equivalence point criterion found (ERC = Equivalence point Recogni-
tion Criterion) is compared with this value. Equivalence points whose ERC
is less than the value defined here will be ignored.
Measuring mode pH:
Input range
0.10 - 9.99
Default value 0.50
Measuring mode U, Ipol:
Input range
1 - 999 mV
Default value 30 mV
Measuring mode Upol:
Input range
0.1 - 99.9 µA
Default value 2.0 µA
EP recognition
This parameter allows you to filter out only the equivalence points that are
being sought.
Selection all | greatest | last | ascending | descending |
off
Default value all
all
All equivalence points will be recognized.
greatest
Only the equivalence point with the greatest ERC value, i.e. the steep-
est jump, will be recognized.
last
Only the last equivalence point will be recognized.
ascending
Only equivalence points with a positive slope of the titration curve will
be recognized.
descending
Only equivalence points with a negative slope of the titration curve will
be recognized.